Ic Pin Function Description - Sony NW-S4 Service Manual

4-8. IC PIN FUNCTION DESCRIPTION

• MAIN BOARD IC601 TMS320DA150GGU120 (DIGITAL SIGNAL PROCESSOR) (Not supplied part)
Pin No. Pin Name
1 CVSS
2 A22
3 CVSS
4 DVDD
5 A10
6 HD7
7 to 10 A11 to A14
11 A15
12 CVDD
13 HAS
14 DVSS
15 CVSS
16 CVDD
17 HCS
18 HR/W
19 READY
20 PS
21 DS
22 IS
23 R/W
24 MSTRB
25 IOSTRB
26 MSC
27 XF
28 HOLDA
29 IAQ
30 HOLD
31 BIO
32 MP/MC
33 DVDD
34 CVSS
35 BDR1
36 BFSR1
37 CVSS
38 BCLKR1
39 HCNTL0
40 DVSS
41, 42 BCLKR0, BCLKR2
43, 44 BFSR0, BFSR2
45 BDR0
46 HCNTL1
47 BDR2
48 BCLKX0
49 BCLKX2
50 CVSS
I/O
— Ground terminal
—
Address signal terminal Not used (open)
—
Ground terminal
—
Power supply terminal (+3.2V)
— Address signal terminal Not used (open)
O Muting control signal output terminal "L": muting
I Address signal input terminal Not used (open)
O Read/write signal output to the 2 to 4 decoder (IC604)
— Power supply terminal (+1.5V)
I Address strobe signal input terminal Not used (fixed at "H")
— Ground terminal
—
Ground terminal
— Power supply terminal (+1.5V)
I Chip select signal input terminal Not used (fixed at "H")
I Read/write signal input terminal Not used (fixed at "H")
I Data ready signal input terminal Not used (fixed at "H")
O Program space select signal output terminal Not used (open)
O Data space select signal output terminal Not used (open)
O I/O space select signal output to the USB controller (IC901)
O Read/write signal output to the 2 to 4 decoder (IC604)
O Memory strobe signal output terminal Not used (open)
O I/O strobe signal output to the 2 to 4 decoder (IC604)
O
Microstate complete signal output terminal Not used (open)
O
External flag signal output terminal Not used (open)
O Hold acknowledge signal output terminal Not used (open)
O
Instruction acquisition signal output terminal Not used (open)
I
Hold signal input terminal Not used (fixed at "H")
I
Branch control signal input terminal Not used (fixed at "H")
I Mode select signal input terminal Not used (fixed at "L")
—
Power supply terminal (+3.2V)
— Ground terminal
I Serial data receive signal input terminal Not used (fixed at "H")
I Frame synchronization pulse signal input terminal Not used (fixed at "H")
— Ground terminal
O Serial clock signal output to the CPU (IC801)
I Control signal input terminal Not used (fixed at "H")
— Ground terminal
I Data receive clock input terminal Not used (fixed at "H")
I Frame synchronization pulse signal input terminal Not used (fixed at "H")
I Serial data receive signal input from the flash ROM (IC602)
I Control signal input terminal Not used (fixed at "H")
I Serial data receive signal input from the EEPROM (IC603) and CPU (IC801)
O Serial clock signal output to the D/A converter (IC302)
O Serial clock signal output to the EEPROM (IC603) and CPU (IC801)
— Ground terminal
Description
NW-S4
21