em78p468l ELAN Microelectronics Corp, em78p468l Datasheet - Page 3

• Manufacturer Part Number: em78p468l
• Description: 8-bit Microcontroller
• Manufacturer: ELAN Microelectronics Corp

Contents
Product Specification (V1.5) 02.15.2007
1
2
3
4
5
6
General Description ······················································································ 1
Features ········································································································· 1
Pin Assignment ····························································································· 2
Block Diagram ······························································································· 3
Pin Description······························································································ 4
Function Description ···················································································· 6
6.1
6.2
Operational Registers .......................................................................................... 6
Special Purpose Registers ................................................................................ 15
6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
6.1.6
6.1.7
6.1.8
6.1.9
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
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.2.6
6.2.7
6.2.8
6.2.9
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
R0/IAR (Indirect Addressing Register) ............................................................... 6
R1/TCC (Timer Clock Counter) .......................................................................... 6
R2/PC (Program Counter) .................................................................................. 6
R4/RSR (RAM Select Register).......................................................................... 9
R5/Port 5 (Port 5 I/O Data and Page of Register Select .................................... 9
R6/Port 6 (Port 6 I/O Data Register)................................................................... 9
R7/Port 7 (Port 7 I/O Data Register)................................................................... 9
R8/Port 8 (Port 8 I/O Data Register)................................................................. 10
A (Accumulator) ................................................................................................ 15
IOC50/P5CR (Port 5 I/O and Ports 7, 8 for LCD Segment Control Register) .. 15
IOC60/P6CR (Port 6 I/O Control Register)....................................................... 16
IOC70/P7CR (Port 7 I/O Control Register)....................................................... 16
IOC80/P8CR (Port 8 I/O Control Register)....................................................... 16
IOC90/RAM_ADDR (128 Bytes RAM Address) ............................................... 16
IOCA0/RAM_DB (128 Bytes RAM Data Buffer) ............................................... 16
IOCB0/CNT1PR (Counter 1 Preset Register) .................................................. 17
IOCC0/CNT2PR (Counter 2 Preset Register) .................................................. 17
R3/SR (Status Register) .................................................................................... 8
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