Pin No. Pin name I/O Function
39 SCL O I2C bus serial clock output
40 TRM+/XKRRST - Not used
41
EUROV/Y/CLAPSW1
O EURO V/Y select signal output/Mute signal output to
video buffer
42 DISCEXT/CLPSW0 O Line input select signal output (DISC: “H”, EXT: “ L”)
43 MD0 I Input of mode select 0 (fixed at “ H”)
44 MD1 I Input of mode select 1 (fixed at “ L”)
45 MD2 I Input of mode select 2 (fixed at “ L”)
46 DREQ0 I Input of DMA-REQ 0 from AV DEC
47 DACK0 O Output of DMA-ACK 0 to AV DEC
48 XDRVMUTE O Drive mute signal output
49 DREQ1 I Input of DMA-REQ 1 from AV DEC
50 DACK1 O Output of DMA-ACK 1 to AV DEC
51 XIFCS O Chip select signal to IF CON
52 VSS - Ground
53 X1 O Clock output (16.5 MHz)
54 X0 I Clock input (16.5 MHz)
55 VCC - Power supply
56 CKSW1 I Chuck sensor input
57 OCSW1 I Tray sensor input
58 CS0X O External ROM chip select signal output
59 CS1X - Not used
60 CS2X O Chip select signal output (for AV DEC)
61 CS3X O Chip select signal output (for AV DEC)
62 CS4X O Chip select signal output (for ARP)
63 CS5X O Chip select signal output (for servo DSP)
64 C - Capacitor (0.1uF) connect between ground
65 CS6X - Not used
66 CS7X - Not used
67 XWAIT I Wait signal input
68 BGRNTX - Test terminal (fixed at “H”)
69 BRQ - Test terminal
70 XRD O Read enable signal output
Pin No. Pin name I/O Function
1-5 HA17-HA21 O Address bus A17-A21
6 HA22 - Not used
7 WP O Write control signal output to EEPROM
8 TRM–/XKRCS - Not used
9 AVCC - Power supply
10 AVRH - Reference power supply (+3.3 V)
11 AVSS - Ground
12 AN0 I Set of mode 0
13 AN1 I Set of mode 1
14 AN2 I Set of mode 2
15 AN3 I Set of mode 3
16 INT0 I Input of interrupt from AV DEC
17 INT1 I Input of interrupt from ARP
18 INT2 I Input of interrupt from servo DSP
19 INT3 - Not used
20 INT4 I Input of interrupt from IF CON
21 INT5 I Input of interrupt from audio DSP
22 INT6 I Input of interrupt from audio DSP
23 INT7 - Not used
24 VCC - Power supply
25 SI0 I Serial data input from IF CON
26 SO0 O Serial data output to IF CON
27 SC0 O Serial clock output to IF CON
28 SI1 I Serial bus 1 (for data input)
29 SO1 O Serial bus 1 (for data output)
30 SC1 O Serial clock output
31 SI2 I Serial bus 2 (for data input)
32 SO2 O Serial bus 2 (for data output)
33 DSENS - Not used
34 VSS - Ground
35 XRST O System reset signal output
36 XARPRST O Reset signal output for ARP
37 RGBSEL/MICMUTE O RGB signal select signal output/Mic mute signal output
38 SDA I/O I2C bus seria data input/output
5-1. SYSTEM CONTROL PIN FUNCTION (MB-98 BOARD IC103)
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