Ic Pin Function Description - Sony SCD-C555ES Service Manual

SCD-C555ES

4-26. IC PIN FUNCTION DESCRIPTION

• MAIN BOARD IC701 CXD1882R (DVD DECODER)
Pin No. Pin Name
1, 2 D5, D6
3 VSS
4 D7
5 A0
6 VDD
7 A1
8 VDD5V
9 to 14 A2 to A7
15 VSS
16 XWAIT
17 XRD
18 XWR
19 XCS
20, 21 XINT0, XINT1
22 VDD
23 XHRS
24 HDB7
25 VSS
26 HDB8
27 HDB6
28 VDDS
29 HDB9
30 HDB5
31 HDBA
32 HDB4
33 VSS
34 HDBB
35 HDB3
36 VDD
37 HDBC
38 VDDS
39 HDB2
40 HDBD
41 HDB1
42 VSS
43 HDBE
44 HDB0
45 HDBF
46 XACK
47 VDDS
48 DCK
49 XSHDR0
50 VDD
51 REDY
52 VSS
53 REQUEST
54 HINT
55 XS16
56 HA1
57 XPDI
58 VDDS
59, 60 HA0, HA2
44
I/O
I/O Two-way data bus with the CPU (IC901) and expander (IC902)
— Ground terminal (digital system)
I/O Two-way data bus with the CPU (IC901) and expander (IC902)
I Address signal input from the CPU (IC901)
— Power supply terminal (+3.3V) (digital system)
I Address signal input from the CPU (IC901)
— Power supply terminal (+5V)
I Address signal input from the CPU (IC901)
— Ground terminal (digital system)
O Wait signal output terminal Not used (open)
I Read strobe signal input from the CPU (IC901)
I Write strobe signal input from the CPU (IC901)
I Chip select signal input from the CPU (IC901)
O Interrupt signal output to the CPU (IC901)
— Power supply terminal (+3.3V) (digital system)
I Not used (open)
O Stream data signal output to the DSD decoder (IC801)
— Ground terminal (digital system)
O Error flag signal output to the DSD decoder (IC801)
O Stream data signal output to the DSD decoder (IC801)
— Power supply terminal (+5V) (digital system)
O Not used (open)
O Stream data signal output to the DSD decoder (IC801)
O Not used (open)
O Stream data signal output to the DSD decoder (IC801)
— Ground terminal (digital system)
O Not used (open)
O Stream data signal output to the DSD decoder (IC801)
— Power supply terminal (+3.3V) (digital system)
O Not used (open)
— Power supply terminal (+5V) (digital system)
O Stream data signal output to the DSD decoder (IC801)
O Not used (open)
O Stream data signal output to the DSD decoder (IC801)
— Ground terminal (digital system)
O Not used (open)
O Stream data signal output to the DSD decoder (IC801)
O Not used (open)
O Serial data transfer acknowledge signal output to the DSD decoder (IC801)
— Power supply terminal (+5V) (digital system)
O Serial data transfer clock signal output to the DSD decoder (IC801)
O Header flag signal output to the DSD decoder (IC801)
— Power supply terminal (+3.3V) (digital system)
O Not used (pull up)
— Ground terminal (digital system)
I Serial data transfer request signal input from the DSD decoder (IC801)
O Not used (pull up)
O Not used (pull up)
I Not used (fixed at "H" )
I/O Not used (pull up)
— Power supply terminal (+5V) (digital system)
I Not used (fixed at "H" )
Description