Sony CDX-GT61UI Service Manual page 31

IC250 ATMEGA32L-8AU-S2 (MAIN Board (4/4))
33
ADC3 34
35
ADC2
DRIVERS
36
ADC1
/BUFFERS
ADC0 37
PORT A
DIGITAL
INTERFACE
VCC 38
GND 39
PROGRAM
COUNTER
PROGRAM
FLASH
INSTRUCTION
REGISTER
INSTRUCTION
DECODER
CONTROL
LINES
AVR CPU
PROGRAMMING
LOGIC
PORT B
DIGITAL
INTERFACE
40
XCK/T0
T1 41
PORT B
DRIVERS
42
AIN0/INT2
/BUFFERS
AIN1/OC0 43
SS 44
1 2
32 31 30 29
PORT A
MUX & ADC
ADC INTERFACE
STACK
POINTER
SRAM
GENERAL
PURPOSE
REGISTERS
X
Y
Z
ALU
STATUS
REGISTER
SPI
COMP.
INTERFACE
3 4 5
28 27
TWI
TIMERS
OSCILLATOR
/COUNTERS
INTERNAL
OSCILLATOR
WATCHDOG
TIMER
MCU CTRL.
& TIMING
INTERRUPT
UNIT
EEPROM
USART
OSCILLATOR
6 7 8
CDX-GT61UI/GT610UI
26 25 24 23
22 TMC
PORT C
21
TCK
DRIVERS
20
SDA
/BUFFERS
19 SCL
PORT C
DIGITAL
INTERFACE
INTERNAL
CALIBRATED
OSCILLATOR
18
GND
PORT D
DIGITAL
INTERFACE
17
VCC
16 OC2
ICP1
15
PORT D
DRIVERS 14 OC1A
/BUFFERS
13 OC1B
12 INT1
9 10 11
31