43
•
Pin Description
No.
Port Name
Assign
I/O
Description
1
Vcc
Vcc
I
5V
2
CS7/TMO0/TP8/PB0
LED2
O
LED2 control output
3
CS6/TMIO1/TP9/PB1
/PRST
O
OTI9790 Reset control output
4
CS5/TMO2/TP10/PB2
/UCS1
O
OTI9790 Register Select1
5
CS4/TMIO3/TP11/PB3
/UCS0
O
OTI9790 Register Select0
6
TP12/PB4
ADSEL
O
HALL/Seld Out Select
7
TP13/PB5
LED1
O
LED1 control output
8
TP14/PB6
AUD_MUTE
O
Audio mute output
9
TP15/PB7
FWE_ON
O
Flash writing enable output
10
RESO/FWE
FWE
I
Flash writing mode setting
11
Vss
Vss
I
GND
12
P90/TxD0
ATIP/EFM
O
Atip/EFM Select Output
13
P91/TxD1
BTS_TXD
O
Serial communication transmit
14
P92/RxD0
WR/RD
O
Write/Read Select output
15
P93/RxD1
BTS_RXD
I
Serial communication receive
16
IRQ4/SCK0/P94
/SDINT
I
OTI9790 Servo Interrupt Input
17
IRQ5/SCK1/P95
TP15
O
for Test
18
D0/P40
SDATAO
O
Serial data output
19
D1/P41
SCLK
O
Interface clock output
20
D2/P42
CDR/RW
O
CDR/CDRW Select output
21
D3/P43
/EPCS
O
E2PROM selection
22
Vss
Vss
I
GND
23
D4/P44
/CXACS
O
CXA2551 interface latch signal output
24
D5/P45
/DACS
O
D/A interface latch signal output
25
D6/P46
TRAY_Mute
O
Tray Motor Drive Mute control
26
D7/P48
ACT_MUTE
O
FCS, TRK, and SLD ON/OFF
27
D8/P30
UAD0
I/O
DATA IN / OUT
28
D9/P31
UAD1
I/O
DATA IN / OUT
29
D10/P32
UAD2
I/O
DATA IN / OUT
30
D11/P33
UAD3
I/O
DATA IN / OUT
31
D12/P34
UAD4
I/O
DATA IN / OUT
32
D13/P35
UAD5
I/O
DATA IN / OUT
33
D14/P36
UAD6
I/O
DATA IN / OUT
34
D15/P37
UAD7
I/O
DATA IN / OUT
35
Vcc
Vcc
I
5V
36
A0/P10
UA0
O
Address output
37
A1/P11
UA1
O
Address output
38
A2/P12
UA2
O
Address output
39
A3/P13
UA3
O
Address output
40
A4/P14
UA4
O
Address output
41
A5/P15
UA5
O
Address output
42
A6/P16
UA6
O
Address output
43
A7/P17
UA7
O
Address output
44
Vss
Vss
I
GND
45
A8/P20
UA8
O
Address output
46
A9/P21
/OPEN_SW
I
Open switch input
47
A10/P22
/LOAD_SW
I
Load switch input
48
A11/P23
RECD1
I
Recording area detection signal input
49
A12/P24
RECD2
I
Recording area detection signal input
50
A13/P25
TESTMODE0
I
Test Mode 0