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Contents 
 
Product Specification (V1.5) 02.15.2007 
 
 iii 
 
Contents 
 
1 General 
Description ······················································································ 1 
2 Features ········································································································· 1 
3 Pin 
Assignment ····························································································· 2 
4 Block 
Diagram ······························································································· 3 
5 Pin 
Description······························································································ 4 
6 Function 
Description ···················································································· 6 
6.1 Operational 
Registers .......................................................................................... 6 
6.1.1 
R0/IAR (Indirect Addressing Register) ............................................................... 6 
6.1.2  R1/TCC (Timer Clock Counter) .......................................................................... 6 
6.1.3 
R2/PC (Program Counter) .................................................................................. 6 
6.1.4   R3/SR (Status Register) .................................................................................... 8 
6.1.5  R4/RSR (RAM Select Register).......................................................................... 9 
6.1.6  R5/Port 5 (Port 5 I/O Data and Page of Register Select .................................... 9 
6.1.7 
R6/Port 6 (Port 6 I/O Data Register)................................................................... 9 
6.1.8 
R7/Port 7 (Port 7 I/O Data Register)................................................................... 9 
6.1.9 
R8/Port 8 (Port 8 I/O Data Register)................................................................. 10 
6.1.10  R9/LCDCR (LCD Control Register) .................................................................. 10 
6.1.11 RA/LCD_ADDR (LCD 
Address).........................................................................11 
6.1.12  RB/LCD_DB (LCD Data Buffer).........................................................................11 
6.1.13 RC/CNTER (Counter Enable Register) .............................................................11 
6.1.14  RD/SBPCR (System, Booster and PLL Control Register)................................ 12 
6.1.15  RE/IRCR (IR and Port 5 Setting Control Register)........................................... 13 
6.1.16 RF/ISR (Interrupt Status Register).................................................................... 14 
6.1.17  Address: 10h~3Fh; R10~R3F (General Purpose Register) ............................. 14 
6.2 Special 
Purpose 
Registers ................................................................................ 15 
6.2.1 A 
(Accumulator) ................................................................................................ 15 
6.2.2  IOC50/P5CR (Port 5 I/O and Ports 7, 8 for LCD Segment Control Register) .. 15 
6.2.3 
IOC60/P6CR (Port 6 I/O Control Register)....................................................... 16 
6.2.4 
IOC70/P7CR (Port 7 I/O Control Register)....................................................... 16 
6.2.5 
IOC80/P8CR (Port 8 I/O Control Register)....................................................... 16 
6.2.6 
IOC90/RAM_ADDR (128 Bytes RAM Address) ............................................... 16 
6.2.7 
IOCA0/RAM_DB (128 Bytes RAM Data Buffer) ............................................... 16 
6.2.8 
IOCB0/CNT1PR (Counter 1 Preset Register) .................................................. 17 
6.2.9 
IOCC0/CNT2PR (Counter 2 Preset Register) .................................................. 17 
6.2.10  IOCD0/HPWTPR (High-Pulse Width Timer Preset Register)........................... 17 
6.2.11  IOCE0/LPWTPR (Low-Pulse Width Timer Preset Register) ............................ 18 
6.2.12  IOCF0/IMR (Interrupt Mask Register)............................................................... 18 
6.2.13  IOC61/WUCR (Wake-up and Sink Current of P5.7/IROUT Control Register) . 18