LG SH33SU-S/W Service Manual page 44

• BLOCK DIAGRAM
SIO0
SIO1
Timer 0
Timer 1
Timer 4
Timer 5
Timer 6
Timer 7
Base timer
PWM2/3
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Only for training and service purposes
Interrupt control
Standby control
CF
RC
X'tal
MRC
Bus interface
Port 0
Port 1
Port 2
Port 7
Port 8
ADC
INT0 to INT7
Noise filter
Port 3
Port C
UART1
UART2
2-35
IR PLA
ROM correct
Flash ROM
PC
ACC
B register
C register
ALU
PSW
RAR
RAM
Stack pointer
Watchdog timer
On-chip Debugger
LGE Internal Use Only