Pioneer VSX-45TX Service Manual page 130

1
DSPC56367PV150 (DSP ASSY: IC401)
• DSP Microcomputer
A
Pin Function
No. Pin Name
1 SCK1
2 SS
3 HREQ
4 SDO0
5 SDO1
6 SDO2
7 SDO3
8 VCCS
B
9 GNDS
10 SDI1
11 SDI0
12 FST
13 FSR
14 SCKT
15 SCKR
16 HCKT
17 HCKR
18 VCCQL
19 GNDQ
C
20 VCCQH
21 HDS
22 HRW
23 HACK
24 HOREQ
25 VCCS
26 GNDS
27 ADO
28 ACI
29 TIO0
30 HCS
D
31 HA9
32 HA8
33 HAS
34 HAD7
35 HAD6
36 HAD5
37 HAD4
38 VCCH
39 GNDH
40 HAD3
41 HAD2
E
42 HAD1
43 HAD0
44 RESET
45 VCCP
46 PCAP
47 GNDP
48 SDI0_1
F
130
1
2
I/O
I Microcomputer communication clock
I Microcomputer communication chip select
O Microcomputer communication request
O Digital audio data (Front L/R)
O Digital audio data (Surround L/R)
O Digital audio data (Center/Subwoofer)
O Digital audio data (Front L/R)
−
Interface power supply (3.3V)
−
Interface GND
I Digital audio data (Front L/R)
I Digital audio data (Surround L/R)
O Digital audio LR clock
I Digital audio LR clock
O Digital audio Bit clock
I Digital audio Bit clock
I Digital audio master clock
I Digital audio master clock
−
Quiet core power supply (1.8V)
−
Quiet GND
−
Quiet external power supply (3.3V)
I Host data strobe
I Host write data
I Host acknowledge
O Host request
−
Interface power supply (3.3V)
−
Interface GND
O Digital audio data output
I Digital audio master clock input
I Timer input
I Host chip select
O General-purpose port
O General-purpose port
O General-purpose port
O General-purpose port
O General-purpose port
O General-purpose port
O General-purpose port
−
Host power supply (3.3V)
−
Host GND
O DVD-A switch
O DIR oscillation stop
O LSSN modxe (LFE addition)
O Analog mode
I Reset
−
PLL power supply (1.8V)
I PLL capacitor connection pin
−
PLL GND
I Digital audio data (Surroundback L/R)
2
3
Function
VSX-45TX
3
4
4