Sony HCD-S300 - IC202 and IC903 Pin Functions

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