Chapter 2. GMS37XXX
Block Diagram
VDD GND
24
1
Power-on
Reset
Watchdog
timer
ROM
10
3-level
Stack
Program counter
Low-Voltage
Detection
64word 16page
8bit
8
10
4
4
4
4
8
Instruction
Decoder
MUX
ALU
4
4
Control Signal
RAM
Word
Selector
2
16
RAM
16word x
2page x 4bit
Y-Reg
ST
X-Reg
4
ACC
4
10
4
D-Latch
10
R-Latch
OSC
Pulse
Generator
4
4
4
22
NC REMOUT
2
3
6
7
8
9
10 11 12 13
R0 ~ R3
14 15 16 17 18 19 20 21
5
4
23
OSC1 OSC2
K0 ~ K3
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9
* NC : No connection
Fig 2-1 Block Diagram (In case of GMS37140)
2-2