GMS81C1404 Datasheet, PDF (5/93 Pages) Hynix Semiconductor – 8-BIT SINGLE-CHIP MICROCONTROLLERS

2. BLOCK DIAGRAM
GMS81C1404/GMS81C1408
RESET
Xin
Xout
PSW
ALU
System controller
System
Clock Controller
Timing generator
Clock Generator
8-bit Basic
Interval
Timer
Accumulator
Stack Pointer
Data
Memory
Interrupt Controller
8-bit
8-bit
High
Buzzer
Watch-dog
Timer
A/D
Converter
Timer/
Counter
Speed
PWM
Driver
SPI
PC
Program
Memory
Data Table
Instruction
Decoder
VDD
V_SS
Power
Supply
RA
RA0 / EC0
RA1 / AN1
RA2 / AN2
RA3 / AN3
RA4 / AN4
RA5 / AN5
RA6 / AN6
RA7 / AN7
RB
RB0 / AN0 / Avref
RB1 / BUZ
RB2 / INT0
RB3 / INT1
RB4 / CMP0 / PWM0
RB5 / CMP1 / PWM1
RB6 / EC1
RB7 / TMR2OV
RC
RD
RC3 / SRDY
RC4 / SCK
RC5 / SIN
RC6 / SOUT
RD0 / INT2
RD1 / INT3
RD2
June. 2001 Ver 1.2
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