Marantz SR-12N1G, Service Manual

Page: 44 / 76

60
QU01 : H8S2633
pin port I/O use Name Port Setting Note
mode = 7 Act. init
1 MD1 I YES MD1 - - Fix H
2 MD2 I YES MD2 - - Normal :H, Boot :L
3 NC - - - - N.C.
4 NC - - - - N.C.
5 PC0 I/O O DATAOTU - L Tuner Pack
6 PC1
I/O O
CLKTU
- L Tuner Pack
7 PC2
I/O O
_CETU
L L Tuner Pack
8 PC3
I/O I
DATAITU
- Tuner Pack
9 VSS
I YES
GND
- - GND
10 PC4
I/O I
SD
L Tuned
11 VCC I YES VCC - - 3.3V
12 PC5 I/O I TUST H Stereo Tune/_MONO
13 PC6 /PWM0 I/O O _CERDS L L Tuner Pack(RDS)
14 PC7 /PWM1 I/O I RDSDATA - Tuner Pack(RDS)
15 VSS I YES GND - - GND
16 PB0/ TIOCA3
I/O T_IN
VSYNC
H V-sync Det. & Change
OSD
17 PVCC1
I YES
PVCC1
- - +5V
18 PB1 /TIOCB3
I/O O
_Data(Inverted) H
P-Exp. (mute, Video),
Analog SW, Volume
19 PB2 /TIOCC3 I/O O _CLK(Inverted) H P-Exp.(mute, Video),
Analog SW, Volume
20 PB3 /TIOCD3 I/O O _CEEXP L H P-Exp. (mute, Video),
21
PB4/ TIOCA4 I/O T_OUT
RC_BUS_OUT
L RC BUS Output
22 PB5 /TIOCB4
I/O O
KILLIR
H L Kill to IR input signal.
23 PB6/ TIOCA5
I/O T_OUT
MRC5O
L RC BUS MULTI Output
24 PB7 /TIOCB5
I/O O
_UMUTE
L L logic for Tr mute
25 PA0
I/O O
RTS
L UART
26 PA1/ TxD2 I/O SO TXD L
UART for Panja, Flash WR
Necessary to Pull Up
27 PA2/ RxD2
I/O SI
RXD
- UART for Panja, Flash WR
Necessary to Pull Up
28 PA3 /SCK2
I/O I
CTS
- - UART
29 Vss
I -
GND
- - Ground
30 P10/ TIOCA0 / I/O T_OUT RC6STAT H L IR carry out
31 P11/ TIOCB0 / I/O T_IN RCIN IR In for RC-5 $ RC-6
32 P12 / I/O O _SMUTE L L DAC
33 P13 / I/O O DFS H L DAC&ADC
34 P14/ _IRQ0 I/O INT _PDOWN L - Power Down Detect
35
NC - -
N.C.
- -
36
NC - -
N.C.
- -
37 P15 /
I/O O
_RSTDAC
L L DAC
38 P16/ _IRQ1
I/O INT
ERF
H - error from DIR
Pin Description