CalmRISC16 Memory Mapped I/O
Base address of I/O is 0x3F0000
Offset	Mnemonic	Description	Reset	R/W
0x000	PCON	(speculation, unknown function)
0x001	SCCON	Oscillator control register	00H	R/W
0x002	WTCON	Watch timer control register	00H	R/W
0x003	(not mapped)
0x004	BTCON	Basic timer control register	00H	R/W
0x005	BTCNT	Basic timer counter	00H	R
0x006	WDTEN	Watchdog timer enable register	00H	R/W
0x007	WDTCON	Watchdog timer control register	00H	R/W
0x008	TACON	Timer A control register	00H	R/W
0x009	TAPRE	Timer A Pre-scalar register	FFH	R/W
0x00a	TADATAH	Timer A data register high	00H	R/W
0x00b	TADATAL	Timer A data register low	00H	R/W
0x00c	TACNTH	Timer A counter high	?	R
0x00d	TACNTL	Timer A counter low	?	R
0x00e	(not mapped)
0x00f	(not mapped)
0x010	TBCON	Timer B control register	00H	R/W
0x011	TBPRE	Timer B Pre-scalar register	FFH	R/W
0x012	TBDATAH	Timer B data register high	00H	R/W
0x013	TBDATAL	Timer B data register low	00H	R/W
0x014	TBCNTH	Timer B counter high	?	R
0x015	TBCNTL	Timer B counter low	?	R
0x016	(not mapped)
0x017	(not mapped)
0x018	TCCON	Timer C control register	00H	R/W
0x019	TCPRE	Timer C Pre-scalar register	FFH	R/W
0x01a	TCDATAH	Timer C data register high	00H	R/W
0x01b	TCDATAL	Timer C data register low	00H	R/W
0x01c	TCCNTH	Timer C counter high	?	R
0x01d	TCCNTL	Timer C counter low	?	R
0x01e	(not mapped)
0x01f	(not mapped)
0x020	IRQ0H	Interrupt request register 0 high	?	R/W
0x021	IRQ0L	Interrupt request register 0 low	?	R/W
0x022	IMR0H	Interrupt mask register 0 high	00H	R/W
0x023	IMR0L	Interrupt mask register 0 low	00H	R/W
0x024	IPR0H	Interrupt priority register 0 high	00H	R/W
0x025	IPR0L	Interrupt priority register 0 low	00H	R/W
0x026	IIR0H	Interrupt ID register 0 high	?	R/W
0x027	(not mapped)
0x028	IRQ1H	Interrupt request register 1 high	?	R/W
0x029	IRQ1L	Interrupt request register 1 low	?	R/W
0x02a	IMR1H	Interrupt mask register 1 high	00H	R/W
0x02b	IMR1L	Interrupt mask register 1 low	00H	R/W
0x02c	IPR1H	Interrupt priority register 1 high	00H	R/W
0x02d	IPR1L	Interrupt priority register 1 low	00H	R/W
0x02e	(not mapped)
0x02f	(not mapped)
0x030	P0	Port 0 data register	00H	R/W
0x031	P1	Port 1 data register	00H	R/W
0x032	P2	Port 2 data register	00H	R/W
0x033	P3	Port 3 data register	00H	R/W
0x034	P4	Port 4 data register	00H	R/W
0x035	P5	Port 5 data register	00H	R
0x036	P6	Port 6 data register	00H	R/W
0x037	P7	Port 7 data register	00H	R/W
0x038	P8	Port 8 data register	00H	R/W
0x039	P9	Port 9 data register	00H	R/W
0x03a	P10	Port 10 data register	00H	R/W
0x03b	(not mapped)
0x03c	(not mapped)
0x03d	(not mapped)
0x03e	(not mapped)
0x03f	(not mapped)
0x040	P0CON	Port 0 control register	00H	R/W
0x041	P1CON	Port 1 control register	00H	R/W
0x042	P2CONH	Port 2 control register high	30H	R/W
0x043	P2CONL	Port 2 control register low	00H	R/W
0x044	P3CONH	Port 3 control register high	00H	R/W
0x045	P3CONL	Port 3 control register low	00H	R/W
0x046	P3PUR	Port 3 pull-up resistor	00H	R/W
0x047	(not mapped)
0x048	P5CON	Port 5 control register	00H	R/W
0x049	P5PUR	Port 5 pull-up resistor	00H	R/W
0x04a	P5INTMODH	Port 5 Int. Mode register High	00H	R/W
0x04b	P5INTMODL	Port 5 Int. Mode register low	00H	R/W
0x04c	P5INTCON	Port 5 Int. control register	00H	R/W
0x04d	(not mapped)
0x04e	(not mapped)
0x04f	(not mapped)
0x050	P4CON	Port 4 control register	00H	R/W
0x051	P4INTCON	Port 4 Int. control register	00H	R/W
0x052	P4INTMOD	Port 4 Int. Mode register	00H	R/W
0x053	P6CON	Port 6 control register	00H	R/W
0x054	P7CON	Port 7 control register	00H	R/W
0x055	P8CON	Port 8 control register	00H	R/W
0x056	P9CON	Port 9 control register	00H	R/W
0x057	P10CON	Port 10 control register	00H	R/W
0x058	SMCON	Smart Media control register	00H	R/W
0x059	ECCNT	ECC counter	00H	R/W
0x05a	ECCH	ECC data register high	00H	R/W
0x05b	ECCL	ECC data register low	00H	R/W
0x05c	ECCX	ECC data register extension	00H	R/W
0x05d	ECCCLR	ECC clear register	?	W
0x05e	ECCRSTH	ECC result register high	00H	R/W
0x05f	ECCRSTL	ECC result register low	00H	R/W
0x060	PPDATA	Parallel port data register	00H	R/W
0x061	PPCDATA	Parallel port command data register	00H	R/W
0x062	PPSCON	Parallel port status control register	08H	R/W
0x063	PPSTAT	Parallel port status register	3FH	R/W
0x064	PPCONH	Parallel port control register high	00H	R/W
0x065	PPCONL	Parallel port control register low	00H	R/W
0x066	PPINTCONH	Parallel port int. control register high	00H	R/W
0x067	PPINTCONL	Parallel port int. control register low	00H	R/W
0x068	PPINTPNDH	Parallel port int. pending register high	00H	R/W
0x069	PPINTPNDL	Parallel port int. pending register low	00H	R/W
0x06a	PPACKD	Parallel port ack. width data register	xxH	R/W
0x06b	PPRLC	(speculation, unknown function)
0x06c	PPFSM	(speculation, unknown function)
0x06d	(not mapped)
0x06e	(not mapped)
0x06f	(not mapped)
0x070	SIOCON	Serial I/O control register	00H	R/W
0x071	SIOPS	Serial I/O pre-scale register	00H	R/W
0x072	SIODATA	Serial I/O data register	00H	R/W
0x073	(not mapped)
0x074	ADDATAH	A/D conversion result data register high	?	R
0x075	ADDATAL	A/D conversion result data register low	?	R
0x076	ADCON	ADC control register	00H	R/W
0x077	(reserved)
0x078	(reserved)
0x079	(reserved)
0x07a	(reserved)
0x07b	(reserved)
0x07c	(reserved)
0x07d	(reserved)
0x07e	(reserved)
0x07f	(reserved)
0x080	FUNADDR	Function address register	00H	R
0x081	PWRMAN	Power management register	00H	R
0x082	FRAMELO	Frame number LO register	00H	R
0x083	FRAMEHI	Frame number HI register	00H	R
0x084	INTREG	Interrupt pending register	00H	R/W
0x085	INTENA	Interrupt enable register	00H	R/W
0x086	EPINDEX	Endpoint index register	00H	R/W
0x087	(not mapped)
0x088	(not mapped)
0x089	EPDIR	Endpoint direction register	00H	W
0x08a	INCSR	IN control status register	00H	R/W
0x08b	OUTCSR	OUT control status register	00H	R/W
0x08c	INMAXP	IN MAX packet register	00H	R/W
0x08d	OUTMAXP	OUT MAX packet register	00H	R/W
0x08e	WRTCNTLO	Write counter LO register	00H	R/W
0x08f	WRTCNTHI	Write counter HI register	00H	R/W
0x090	EP0FIFO	Endpoint 0 FIFO register	00H	R/W
0x091	EP1FIFO	Endpoint 1 FIFO register	00H	R/W
0x092	EP2FIFO	Endpoint 2 FIFO register	00H	R/W
0x093	EP3FIFO	Endpoint 3 FIFO register	00H	R/W
0x094	USB (hidden)	Invisible area for USB
0x095	USB (hidden)	Invisible area for USB
0x096	USB (hidden)	Invisible area for USB
0x097	USB (hidden)	Invisible area for USB
0x098	USB (hidden)	Invisible area for USB
0x099	USB (hidden)	Invisible area for USB
0x09a	USB (hidden)	Invisible area for USB
0x09b	USB (hidden)	Invisible area for USB
0x09c	USB (hidden)	Invisible area for USB
0x09d	USB (hidden)	Invisible area for USB
0x09e	USB (hidden)	Invisible area for USB
0x09f	USB (hidden)	Invisible area for USB
0x0a0	IISCON0	IIS control register 0	00H	R/W
0x0a1	IISMODE0	IIS mode register 0	00H	R/W
0x0a2	IISPTR0	IIS buffer pointer register 0	00H	R/W
0x0a3	(not mapped)	Location A3H is not mapped
0x0a4	IISCON1	IIS control register 1	00H	R/W
0x0a5	IISMODE1	IIS mode register 1	00H	R/W
0x0a6	IISPTR1	IIS buffer pointer register 1	00H	R/W
0x0a7	(not mapped)
0x0a8	PLL0DATAH	PLL0 data register higher	?	R/W
0x0a9	PLL0DATAL	PLL0 data register lower	?	R/W
0x0aa	PLL0CON	PLL0 Control register	0	R/W
0x0ab	(not mapped)
0x0ac	PLL1DATAH	PLL1 data register higher	?	R/W
0x0ad	PLL1DATAL	PLL1 data register lower	?	R/W
0x0ae	PLL1CON	PLL1 Control register	0	R/W
0x0af	(not mapped)
0x0b0	LCON	UART line control register	00H	R/W
0x0b1	UCON	UART control register	00H	R/W
0x0b2	USSR	UART status register	C0H	R
0x0b3	TBR	UART transmit buffer register	?	W
0x0b4	RBR	UART receive buffer register	?	R
0x0b5	UBRDR	UART baud rate divisor register	00H	R/W
0x0b6	UPEND	UART interrupt pending register	0	R/W
0x0b7	(not mapped)
0x0b8	IICCON	IIC control register	00H	R/W
0x0b9	IICSR	IIC status register	00H	R/W
0x0ba	IICDATA	IIC data register	?	R/W
0x0bb	IICADDR	IIC address register	?	R/W
0x0bc	(not mapped)	IIC pre-scaler register	FFH	R/W
0x0bd	IICCNT	IIC pre-scaler count register for test	?	R
0x0be	(not mapped)
0x0bf	(not mapped)
0x0c0	IISBUF	64 Byte IIS I/O Buffer	?	R/W
0x0c1	IISBUF+01	64 Byte IIS I/O Buffer	?	R/W
0x0c2	IISBUF+02	64 Byte IIS I/O Buffer	?	R/W
0x0c3	IISBUF+03	64 Byte IIS I/O Buffer	?	R/W
0x0c4	IISBUF+04	64 Byte IIS I/O Buffer	?	R/W
0x0c5	IISBUF+05	64 Byte IIS I/O Buffer	?	R/W
0x0c6	IISBUF+06	64 Byte IIS I/O Buffer	?	R/W
0x0c7	IISBUF+07	64 Byte IIS I/O Buffer	?	R/W
0x0c8	IISBUF+08	64 Byte IIS I/O Buffer	?	R/W
0x0c9	IISBUF+09	64 Byte IIS I/O Buffer	?	R/W
0x0ca	IISBUF+10	64 Byte IIS I/O Buffer	?	R/W
0x0cb	IISBUF+11	64 Byte IIS I/O Buffer	?	R/W
0x0cc	IISBUF+12	64 Byte IIS I/O Buffer	?	R/W
0x0cd	IISBUF+13	64 Byte IIS I/O Buffer	?	R/W
0x0ce	IISBUF+14	64 Byte IIS I/O Buffer	?	R/W
0x0cf	IISBUF+15	64 Byte IIS I/O Buffer	?	R/W
0x0d0	IISBUF+16	64 Byte IIS I/O Buffer	?	R/W
0x0d1	IISBUF+17	64 Byte IIS I/O Buffer	?	R/W
0x0d2	IISBUF+18	64 Byte IIS I/O Buffer	?	R/W
0x0d3	IISBUF+19	64 Byte IIS I/O Buffer	?	R/W
0x0d4	IISBUF+20	64 Byte IIS I/O Buffer	?	R/W
0x0d5	IISBUF+21	64 Byte IIS I/O Buffer	?	R/W
0x0d6	IISBUF+22	64 Byte IIS I/O Buffer	?	R/W
0x0d7	IISBUF+23	64 Byte IIS I/O Buffer	?	R/W
0x0d8	IISBUF+24	64 Byte IIS I/O Buffer	?	R/W
0x0d9	IISBUF+25	64 Byte IIS I/O Buffer	?	R/W
0x0da	IISBUF+26	64 Byte IIS I/O Buffer	?	R/W
0x0db	IISBUF+27	64 Byte IIS I/O Buffer	?	R/W
0x0dc	IISBUF+28	64 Byte IIS I/O Buffer	?	R/W
0x0dd	IISBUF+29	64 Byte IIS I/O Buffer	?	R/W
0x0de	IISBUF+30	64 Byte IIS I/O Buffer	?	R/W
0x0df	IISBUF+31	64 Byte IIS I/O Buffer	?	R/W
0x0e0	IISBUF+32	64 Byte IIS I/O Buffer	?	R/W
0x0e1	IISBUF+33	64 Byte IIS I/O Buffer	?	R/W
0x0e2	IISBUF+34	64 Byte IIS I/O Buffer	?	R/W
0x0e3	IISBUF+35	64 Byte IIS I/O Buffer	?	R/W
0x0e4	IISBUF+36	64 Byte IIS I/O Buffer	?	R/W
0x0e5	IISBUF+37	64 Byte IIS I/O Buffer	?	R/W
0x0e6	IISBUF+38	64 Byte IIS I/O Buffer	?	R/W
0x0e7	IISBUF+39	64 Byte IIS I/O Buffer	?	R/W
0x0e8	IISBUF+40	64 Byte IIS I/O Buffer	?	R/W
0x0e9	IISBUF+41	64 Byte IIS I/O Buffer	?	R/W
0x0ea	IISBUF+42	64 Byte IIS I/O Buffer	?	R/W
0x0eb	IISBUF+43	64 Byte IIS I/O Buffer	?	R/W
0x0ec	IISBUF+44	64 Byte IIS I/O Buffer	?	R/W
0x0ed	IISBUF+45	64 Byte IIS I/O Buffer	?	R/W
0x0ee	IISBUF+46	64 Byte IIS I/O Buffer	?	R/W
0x0ef	IISBUF+47	64 Byte IIS I/O Buffer	?	R/W
0x0f0	IISBUF+48	64 Byte IIS I/O Buffer	?	R/W
0x0f1	IISBUF+49	64 Byte IIS I/O Buffer	?	R/W
0x0f2	IISBUF+50	64 Byte IIS I/O Buffer	?	R/W
0x0f3	IISBUF+51	64 Byte IIS I/O Buffer	?	R/W
0x0f4	IISBUF+52	64 Byte IIS I/O Buffer	?	R/W
0x0f5	IISBUF+53	64 Byte IIS I/O Buffer	?	R/W
0x0f6	IISBUF+54	64 Byte IIS I/O Buffer	?	R/W
0x0f7	IISBUF+55	64 Byte IIS I/O Buffer	?	R/W
0x0f8	IISBUF+56	64 Byte IIS I/O Buffer	?	R/W
0x0f9	IISBUF+57	64 Byte IIS I/O Buffer	?	R/W
0x0fa	IISBUF+58	64 Byte IIS I/O Buffer	?	R/W
0x0fb	IISBUF+59	64 Byte IIS I/O Buffer	?	R/W
0x0fc	IISBUF+60	64 Byte IIS I/O Buffer	?	R/W
0x0fd	IISBUF+61	64 Byte IIS I/O Buffer	?	R/W
0x0fe	IISBUF+62	64 Byte IIS I/O Buffer	?	R/W
0x0ff	IISBUF+63	64 Byte IIS I/O Buffer	?	R/W
0x100	IDSC0H	ID/Security register 0 higher	00H	R/W
0x101	IDSC0L	ID/Security register 0 lower	?	R/W
0x102	IDSC1H	ID/Security register 1 higher	?	R/W
0x103	IDSC1L	ID/Security register 1 lower	?	R/W
0x104	IDSC2H	ID/Security register 2 higher	?	R/W
0x105	IDSC2L	ID/Security register 2 lower	?	R/W
0x106	IDSC3H	ID/Security register 3 higher	?	R/W
0x107	IDSC3L	ID/Security register 3 lower	?	R/W
0x108	RANCON	Control register for Random number generator	?	R/W
0x109	LFSR8	8-bit linear feedback shift register	?	R/W
0x10a	LFSR16H	16-bit linear feedback shift register higher	?	R/W
0x10b	LFSR16L	16-bit linear feedback shift register lower	?	R/W
0x10c	INTMODE	Interrupt Service Mode register	00H	R/W
0x10d	FMCON	I2S Frame Control
0x10e	FSCLK	I2S Interface Clock
0x10f	FSDAT	I2S Interface Data
0x110	MIUSCFG	SRAM Configure register	00H	R/W
0x111	MIUDCOM	SRAM Command register	00H	R/W
0x112	MIUDCFGH	SDRAM Configure register High	00H	R/W
0x113	MIUDCFGL	SDRAM Configure register Low	00H	R/W
0x114	MIUDCNTH	SDRAM Auto Refresh Count Value High	7H	R/W
0x115	MIUDCNTL	SDRAM Auto Refresh Count Value Low	FFH	R/W
0x116	(not mapped)
0x117	(not mapped)
0x118	(not mapped)
0x119	(not mapped)
0x11a	(not mapped)
0x11b	(not mapped)
0x11c	(not mapped)
0x11d	(not mapped)
0x11e	(not mapped)
0x11f	(not mapped)
0x120	DDMACOM	DDMA Command & Status register	00H	R/W
0x121	DDMACFG	DDMA Configure register	00H	R/W
0x122	(not mapped)
0x123	DDMAIADRX	DDMA Internal Address register eXt	?	R/W
0x124	DDMAIADRH	DDMA Internal Address register High	?	R/W
0x125	DDMAIADRL	DDMA Internal Address register Low	?	R/W
0x126	(not mapped)
0x127	DDMAEADRX	DDMA External Address register eXt	?	R/W
0x128	DDMAEADRH	DDMA External Address register High	?	R/W
0x129	DDMAEADRL	DDMA External Address register Low	?	R/W
0x12a	DDMANUMH	DDMA Transfer Number register High	?	R/W
0x12b	DDMANUML	DDMA Transfer Number register Low	?	R/W
0x12c	DDMACNTH	DDMA Transfer Count register High	00H	R
0x12d	DDMACNTL	DDMA Transfer Count register Low	00H	R
0x12e	DDMANUMX	DDMA Transfer Number register eXt	?	R/W
0x12f	DDMACNTX	DDMA Transfer Count register eXt	00H	R
0x130	YDMACOM	YDMA Command & Status register	00H	R/W
0x131	YDMACFG	YDMA Configure register	00H	R/W
0x132	YDMAIADRH	YDMA Internal Address register High	?	R/W
0x133	YDMAIADRH	YDMA Internal Address register Low	?	R/W
0x134	(not mapped)
0x135	YDMAEADRX	YDMA External Address register eXt	?	R/W
0x136	YDMAEADRH	YDMA External Address register High	?	R/W
0x137	YDMAEADRL	YDMA External Address register Low	?	R/W
0x138	YDMANUMH	YDMA Transfer Number register High	?	R/W
0x139	YDMANUML	YDMA Transfer Number register Low	?	R/W
0x13a	YDMACNTH	YDMA Transfer Count register High	00H	R
0x13b	YDMACNTL	YDMA Transfer Count register Low	00H	R
0x13c	(not mapped)
0x13d	(not mapped)
0x13e	(not mapped)
0x13f	(not mapped)
0x140	CACHECON	CACHE Control register	00H	R/W
0x141	ICBASEH	ICACHE Base register High	00H	R/W
0x142	ICBASEL	ICACHE Base register Low	00H	R/W
0x143	DCBASEH	DCACHE Base register High	00H	R/W
0x144	DCBASEL	DCACHE Base register Low	00H	R/W
0x145	(not mapped)
0x146	(not mapped)
0x147	(not mapped)
0x148	(not mapped)
0x149	(not mapped)
0x14a	(not mapped)
0x14b	(not mapped)
0x14c	(not mapped)
0x14d	(not mapped)
0x14e	(not mapped)
0x14f	(not mapped)
0x150	LCNTR0H	LCD Control register 0 High	00H	R/W
0x151	LCNTR0L	LCD Control register 0 Low	00H	R/W
0x152	LCNTR1H	LCD Control register 1 High	00H	R/W
0x153	LCNTR1L	LCD Control register 1 Low	00H	R/W
0x154	LCNTR2H	LCD Control register 2 High	00H	R/W
0x155	LCNTR2L	LCD Control register 2 Low	00H	R/W
0x156	LCNTR3H	LCD Control register 3 High	00H	R/W
0x157	LCNTR3L	LCD Control register 3 Low	00H	R/W
0x158	LCNTR4H	LCD Control register 4 High	00H	R/W
0x159	LCNTR4L	LCD Control register 4 Low	00H	R/W
0x15a	LCNTR5H	LCD Control register 5 High	00H	R/W
0x15b	LCNTR5L	LCD Control register 5 Low	00H	R/W
0x15c	(not mapped)
0x15d	LDBAR1H	LCD DMA Channel 1 Base address High	00H	R/W
0x15e	LDBAR1M	LCD DMA Channel 1 Base address Middle	00H	R/W
0x15f	LDBAR1L	LCD DMA Channel 1 Base address Low	00H	R/W
0x160	(not mapped)
0x161	LDBAR2H	LCD DMA Channel 2 Base address High	00H	R/W
0x162	LDBAR2M	LCD DMA Channel 2 Base address Middle	00H	R/W
0x163	LDBAR2L	LCD DMA Channel 2 Base address Low	00H	R/W
0x164	(not mapped)
0x165	LDCAR1H	LCD DMA Channel 1 Current address High	00H	R
0x166	LDCAR1M	LCD DMA Channel 1 Current address Middle	00H	R
0x167	LDCAR1L	LCD DMA Channel 1 Current address Low	00H	R
0x168	(not mapped)
0x169	LDCAR2H	LCD DMA Channel 2 Current address High	00H	R
0x16a	LDCAR2M	LCD DMA Channel 2 Current address Middle	00H	R
0x16b	LDCAR2L	LCD DMA Channel 2 Current address Low	00H	R
0x16c	(not mapped)
0x16d	LSR	LCD Status register	00H	R/W
0x16e	LRLUTRHH	LCD Red Lookup Table High-High	00H	R/W
0x16f	LRLUTRHL	LCD Red Lookup Table High-Low	00H	R/W
0x170	LRLUTRLH	LCD Red Lookup Table Low-High	00H	R/W
0x171	LRLUTRLL	LCD Red Lookup Table Low-Low	00H	R/W
0x172	LGLUTRHH	LCD Green Lookup Table High-High	00H	R/W
0x173	LGLUTRHL	LCD Green Lookup Table High-Low	00H	R/W
0x174	LGLUTRLH	LCD Green Lookup Table Low-High	00H	R/W
0x175	LGLUTRLL	LCD Green Lookup Table Low-Low	00H	R/W
0x176	LBLUTRH	LCD Blue Lookup Table Low-High	00H	R/W
0x177	LBLUTRL	LCD Blue Lookup Table Low-Low	00H	R/W
0x178	LDP1_7	LCD 1/7 Dither Pattern register	00H	R/W
0x179	LDP3_7	LCD 3/7 Dither Pattern register	00H	R/W
0x17a	LDP4_7	LCD 4/7 Dither Pattern register	00H	R/W
0x17b	LDP5_7	LCD 5/7 Dither Pattern register	00H	R/W
0x17c	LDP6_7	LCD 6/7 Dither Pattern register	00H	R/W
0x17d	(not mapped)
0x17e	LDP1_5	LCD 1/5 Dither Pattern register	00H	R/W
0x17f	LDP2_5	LCD 2/5 Dither Pattern register	00H	R/W
0x180	LDP3_5	LCD 3/5 Dither Pattern register	00H	R/W
0x181	LDP4_5	LCD 4/5 Dither Pattern register	00H	R/W
0x182	LDP1_4	LCD 1/4, 1/2 Dither Pattern register	00H	R/W
0x183	LDP3_4	LCD 3/4 Dither Pattern register	00H	R/W
0x184	LDP1_3	LCD 1/3, 2/3 Dither Pattern register	00H	R/W