GMS36 Datasheet, PDF (7/109 Pages) Hynix Semiconductor – 4-BIT SINGLE CHIP MICROCOMPUTERS

Chapter 1. GMS36XXX
Block Diagram
VDD GND
24 1
ROM
Ø 64word 16page
Ø8bit
8
4
8
10
Program counter
10
4
3-level
Stack
4
Instruction
Decoder
4
MUX
Control Signal
2
X-Reg
RAM ₁₆
16word x
2page x 4bit
RAM
Word
Selector4
OSC
4
10
R-Latch
Watchdog
timer
Power-on
Reset
Low-Voltage
Detection
ALU
4
Y-Reg
ACC
D-Latch
4
ST
4
Pulse
Generator
4
44
10
I.R. LED
Drive Tr.
23 6789
OSC1 OSC2
K0 ~ K3
10 11 12 13
R0 ~ R3
14 15 16 17 18 19 20 21 5 4
D0 ~ D9
22
23
PGND REMOUT
Fig 1-1 Block Diagram (In case of GMS36140)
1-2