Ic Pin Function Description - Sony STR-DE675 Service Manual

3-17. IC PIN FUNCTION DESCRIPTIONS
• IC1601 MB90478PF-G-101-BND (SYSTEM CONTROL)
Pin No. Pin Name
1 DATAO
2 GP9
3 BST
4 HCS
5 HACN
6 XRST
7 PM
8 PD
9 SMUTE
10 CDT1
11 VSS
12 SCL
13 CS
14 DATA
15 CLK
16 LATCH
17 MUTING IN
18 HDOUT
19 HDIN
20 HCLK
21 F.MUTE
22 AC MUTING
23 VCC5
24 ANA/DIG
25 DCS LED
26 HP DETECT
27 FLASH2
28 SP SWITCH/FLASH1
29 EQ
30 MODE
31 2CH
32 AFD
33 —
34 —
35 AVCC
36 AVRH
37 AVSS
38 A/D0
39 A/D1
40 A/D2
41 A/D3
42 VSS
43 RDS SIGNAL
44 MODEL
45 VERSION
46 MULTI CH LED
47 STOP
48 GND (F)
49 MD0
50 MD1
I/O
I Audio data signal input from DIR
I GP9 signal input from DSP
O BST signal output to DSP
O HCS signal output to DSP
I HACN signal input from DSP
O Reset signal output to DSP
O PM signal output to DSP
O Power down signal output to AUDIO CODEC
O Muting signal output to AUDIO CODEC
O Control data signal output to AUDIO CODEC
— Ground
O Clock signal output to AUDIO CODEC
O Chip select signal output to AUDIO CODEC
O Control data signal output to the sound processor
O Clock signal output to the sound processor
O Latch signal output to the sound processor
O Muting signal output to the sound processor
I HDOUT signal input from DSP
O HDIN signal output to DSP
O Clock signal output to DSP
O Muting signal output
O Muting signal output to the power amplifier
— Power supply
I Muting and error signal input
O DCS LED control signal output
I Headphone switch detect signal input
O Terminal for FLASH programming
I/O Speaker ON/OFF switch signal input / Terminal for FLASH programming
O EQ LED control signal output
O MODE LED control signal output
O 2CH LED control signal output
O AFD LED control signal output
I Not used
I Not used
— Analog power supply
— Analog reference voltage input
— Analog ground
I Function key push signal input
I Function key push signal input
I Function key push signal input
I Function key push signal input
— Ground
I RDS signal detect input
I Version setting input (MODEL)
I Version setting input (DESTINATION)
O MULTI CH LED control signal output
I AC off detect signal input
I Terminal for FLASH programming (Ground)
— Operation mode setting input
— Operation mode setting input
Description
STR-DE675
27