Sony XVM-R75 Service Manual page 42

XVM-R75
U505 PIC16C77-04/L (MAIN Board) (2/2)
PROGRAM
BUS
INSTRUCTION REG
RC7
RC7/RX/DT
29
RD4
RD4/PSP4 30
RD5
31
RD5/PSP5
RD6
RD6/PSP6
32
RD7
RD7/PSP7
33
VSS1 34
VDD1 35
OSC1
RB0
36
RB0/INT
RB1
OSC2
37
RB1
RB2
38
RB2
RB3
39
RB3
10
28 27 26 25 24 23 22 21 20 19 18
13
PROGRAM COUNTER
EPROM
PROGRAM
MEMORY
8 LEVEL STACK
2K x 14
(13-BIT)
14
RAM ADDRESS
DIRECT ADDRESS
7
8
POWER-UP
TIMER
INSTRUCTION
OSCILLATOR
DECODE &
START-UP TIMER
CONTROL
POWER-UP
RESET
TIMING WATCHDOG
TIMER
GENERATION
BROWN-OUT
RESET
TIMER 0 TIMER 1
SYNCHRONOUS
A/D
SERIAL PORT
40 41 42 43 44 1 2 3 4 5 6
8
DATA BUS
PORT A
RAM
FILE
REGISTERS
128 x 8
PORT B
9
ADDRESS MUX
INDIRECT
8
ADDRESS
FSR REG
STATUS REG
3
PORT C
MUX
ALLI
8
PORT D
W REG
TIMER 2
PORT E
CCP1
RA0
RA1
RA2
RA3
RA4
RA5
RB0
RB1
RB2
RB3
RB4
RB5
RB6
RB7
RC0
RC1
RC2
RC3
RC4
17
RC5 RC0
16
RC6
OSC2
15
RC7
OSC1
14
13
RD0
12
RE2
RD1
11
RE1
RD2
10
RE0
RD3
9
RA5
RD4
8
RD5
RA4
7
RD6
RD7
RE0
RE1
RE2
NC4
RC0/T1OSO/T1CKI
OSC2/CLKOUT
OSC1/CLKIN
VSS2
VDD2
RE2/AN7
RE1/AN6
RE0/AN5
RA5/AN4
RA4/TOCKI