tm
TE
CH
T81L0010A
4. Block Diagram
RAM Addr.
Register
RAM
OTP
ROM
B
Register
ACC
Stack
Pointer
TMP2
W DT
TMP1
Program
Address
Register
Buffer
ALU
PC
Incrementer
Interrupt, Serial port,
and Timer Block
PSW
Program
Counter
DPTR
RST
Timing &
Control
Instruction
Register
Port 3
Latch
Port 1
Latch
OSC
Port 3
Drivers
Port 1 Drivers
XTAL1 XTAL2
P3.0 -P3.5, P3.7
P1.0 -P1.7
TM Technology Inc. reserves the right
to change products or specifications without notice.
P. 2
Publication Date: JAN. 2006
Revision:B