GMS81C2020 Datasheet, PDF (6/92 Pages) Hynix Semiconductor – CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver

GMS81C2020/GMS81C2120
4. BLOCK DIAGRAM (GMS81C2120)
ADC Power
Supply
R07
R06
R05
R04
R03/BUZO
R02/EC0
R01/INT1
R00/INT0
Driver
Buzzer
R0
Hyundai Micro Electro nics
R20~R27
R30~R34 ^Vdisp/RA
R2
R3
PSW
ALU
System controller
S yste m
C lock Controller
Sub System
C lock Controller
Tim ing generator
C lo c k
G e n e ra to r
8-bit Basic
In te rv a l
Tim er
Watchdog
Timer
Accumulator
Stack Pointer
Interrupt Controller
Data Memory
(448 bytes)
PC
Program
Memory
Data Table
8-bit
Timer/
Counter
8-bit serial 8-bit PWM
Interface
8-bit
ADC
PC
R5
R6
Power
Supply
R53 / SCLK
R54 / SIN
R55 / SOUT
R56 / PWM1O/T1O
R57
R60 / AN0
R61 / AN1
R62 / AN2
R63 / AN3
R64 / AN4
R65 / AN5
R66 / AN6
R67 / AN7
6
preliminary
Nov. 1999 Ver 0.0