Sony HCD-S300 Service Manual page 55

6-37. IC PIN FUNCTIONS
• IC202 DIGITAL SERVO & DIGITAL SIGNAL PROCESSOR (MB911101APFV-G-BND) (DVD Board)
Pin No. Pin Name
1 DREQ2/PB5/CS1L
2 DACK2/PB6/CS1H
3 PB7/DW1
4 VCC3
5 PA6/CLK
6 PA5/CS5
7 PA4/CS4
8 EOP1/PA3/CS3
9 PA2/CS2
10 PA1/CS1
11 CS0
12 NMI
13 HST
14 RST
15 GND
16 MD0
17 MD1
18 MD2
19 P80/RDY
20 P81/BGRNT
21 P82/BRQ
22 RD
23 WR0
24 P85/WR1
25 P20/D16
26 P21/D17
27 P22/D18
28 P23/D19
29 P24/D20
30 P25/D21
31 P26/D22
32 P27/D23
33 D24
34 D25
35 D26
36 D27
37 D28
38 D29
39 D30
40 GND
41 D31
42 A00
43 VCC5
44 A01
45 A02
46 A03
47 A04
48 A05
49 A06
50 A07
I/O
O Analog filter gain control
O VES gain control "H" : VES
O Rear CH boost "H" : rear boost
– Power supply
O CPU clock out (25 MHz)
O Not used
O Chip select signal for ARP, SERVO DSP and HGA
O Chip select signal for SDRAM and AV DEC
O Chip select signal for REG and AV DEC
O Chip select signal for external SRAM
O Chip select signal for external FLASH ROM
I Not used (fixed at "H")
I Not used (fixed at "H")
I Reset signal input from IF CON
– Ground
I Input of mode select 0 (fixed at "1")
I Input of mode select 1 (fixed at "0")
I Input of mode select 2 (fixed at "0")
I Wait signal input
I Test terminal (fixed at "H")
I Test terminal (fixed at "L")
O Read enable signal output
O High byte write enable signal output (16 bit and 8 bit)
O Low byte write enable signal output (16 bit only)
I/O Data bus D0 (16 bit)
I/O Data bus D1 (16 bit)
I/O Data bus D2 (16 bit)
I/O Data bus D3 (16 bit)
I/O Data bus D4 (16 bit)
I/O Data bus D5 (16 bit)
I/O Data bus D6 (16 bit)
I/O Data bus D7 (16 bit)
I/O Data bus D8 (16 bit), D0 (8 bit)
I/O Data bus D9 (16 bit), D1 (8 bit)
I/O Data bus D10 (16 bit), D2 (8 bit)
I/O Data bus D11 (16 bit), D3 (8 bit)
I/O Data bus D12 (16 bit), D4 (8 bit)
I/O Data bus D13 (16 bit), D5 (8 bit)
I/O Data bus D14 (16 bit), D6 (8 bit)
– Ground
I/O Data bus D15 (16 bit), D7 (8 bit)
– Address bus A0
O Power supply
O Address bus A1
O Address bus A2
O Address bus A3
O Address bus A4
O Address bus A5
O Address bus A6
O Address bus A7
Function
67