EM78869
8-Bit RISC Type Microprocessor
5 Functional Block Diagram
CCPUPU
TTIMIMININGGCCOONNTTRROOLL
TTIMIMEERR
RRAAMM
LLCCDDDDRRIVIVEERR
IOIOPOPORRTT
LCD
I/O
RROOMM
PLPLLL
Fig. 2a System Overview Block Diagram
OSCI OSCO
Oscillator
Timing Control
WDT Timer
Prescaler
R1(TCC)
Control Sleep
& Wake-up
on I/O Port
General
RAM
R4
Interruption
Control
ROM
Instruction
Register
Instruction
Decoder
R2
Stack
ALU
R3 ACC
R5
Data & Control Bus
RAM
PORT5
IOC5 R5
PORT6
IOC6 R6
PORT7
IOC7 R7
PORT8
IOC8 R8
PORT9
IOC9 R9
4 of 34 07.12.2004 (V1.0)
P54~P57
P60
P70~P77 P80~P87
Fig. 2b System Functional Block Diagram
P90~P97
This specification is subject to change without further notice.