Sony MEX-1HD Service Manual page 90

MEX-1HD
• MAIN BOARD IC4301 ISP1161BD-118 (USB INTERFACE)
Pin No. Pin Name
1 D_GND
2 to 7 D2 to D7
8 D_GND
9 to 14 D8 to D13
15 D_GND
16, 17 D14, D15
18 D_GND
19 VHOLD_1
20 NC
21 CS_N
RD_N
22
23 WR_N
24 VHOLD_2
DREQ1
25
26 DREQ2
27 DACK1
28 DACK2
29 INT1
30
INT2
31
TEST
32 RESET_N
33 NDP_SEL
34 EOT
35 D_GND
36 D_SUSPEND
37 D_WAKEUP
38 GL_N
39 D_VBUS
40 H_WAKEUP
41 CLKOUT
42 H_SUSPEND
43
X1
44 X2
45
D_GND
46 H_PSW1_N
47 H_PSW2_N
48 D_D–
49 D_D+
50 H_D1–
51 H_D1+
52 H_D2–
53 H_D2+
90
I/O
Ground terminal (for digital system)
—
Two-way data bus with the CPU, CPU/ATA interface IC, memory stick interface IC,
I/O
display controller, 64MB flash memory and 128MB SD-RAM
— Ground terminal (for digital system)
Two-way data bus with the CPU, CPU/ATA interface IC, memory stick interface IC,
I/O
display controller, 64MB flash memory and 128MB SD-RAM
Ground terminal (for digital system)
—
Two-way data bus with the CPU, CPU/ATA interface IC, memory stick interface IC,
I/O
display controller, 64MB flash memory and 128MB SD-RAM
Ground terminal (for digital system)
—
—
Voltage holding terminal
O Not used
I Chip select signal input from the CPU
I Read strobe signal input from the CPU
I
Write enable signal input from the CPU
— Voltage holding terminal
O
DMA request signal output to the CPU
O
DMA request signal output terminal Not used
I DMA acknowledge signal input from the CPU
I DMA acknowledge signal input terminal Not used
O
Interrupt request signal output to the CPU/ATA interface IC
O
Interrupt request signal output terminal Not used
I
For test terminal (normally fixed at "H")
I Reset signal input from the CPU "L" : reset
Number of downstream port selection terminal
I
"L" : 1 downstream port, "H" : 2 downstream ports (fixed at "L" in this set)
I
Not used
— Ground terminal (for digital system)
O Internal device controller's suspend signal output terminal Not used
I
Wake up signal input terminal Not used
O
LED drive signal output terminal Not used
I
USB connect detection signal input terminal Not used
I Wake up signal input terminal Not used
O
Clock output terminal (3 to 48MHz) Not used
O
Internal host controller's suspend signal output terminal Not used
I
System clock input terminal (6MHz)
O System clock output terminal (6MHz)
Ground terminal (for digital system)
—
O
Power on/off control signal output terminal Not used
O
Power on/off control signal output terminal Not used
I/O Two-way data bus of USB data (–) Not used
I/O
Two-way data bus of USB data (+) Not used
I/O
Two-way data bus of USB data (–)
I/O
Two-way data bus of USB data (+)
I/O Two-way data bus of USB data (–) Not used
I/O
Two-way data bus of USB data (+) Not used
Description