Sony HCD-GTX888 Service Manual page 78

HCD-GTX777/GTX787/GTX888
• IC Pin Function Descriptions
IC901 TMP92CD28AFG-6VD8 (USB CONTROLLER) (USB BOARD)
Pin No. Pin Name
1 RESET
2 PC0/INT0
3 PC1/INT1
4 PC2/INT2/TB1IN0
5 PC3/INT3
6 DVCC3B
7 PC6/XT1
8 PC7/XT2
9 PWE
10 DVSS1B
11 DVCC1B
12 RVOUT1
13, 14 RVIN
15 RVOUT2
16 DVCC1A
17 DVSS1A
18 to 25 P00/D0 to P07/D7
26 DVSS
27 DVCC3A
28 to 35 P10/D8 to P17/D15
36 P40/A0
37 to 43 P41/A1 to P47/A7
44 DVSS
45 DVCC3A
46 to 54 P50/A8 to P60/A16
55 to 58 P61/A17 to P64/A20
59 P65/A21
60 P66/A22
61 P67/A23
62 DVSS
63 DVCC3A
64 P70/RD
65 P71/SRWR
66 P72/SRLLB
67 P73/SRLUB
68 P74/TA0IN
69 P80/CS0/TA1OUT (BOOT)
70 P82/CS2
71 P83/CS3/WAIT/TA5OUT
72 AM1
73 X2
74 DVSS
75 X1
76 DVCC3A
77 P75/USBOC
78 P76/USBPON
79 D+
80 D–
81 AM0
82 P77/X1USB
83 DVSS
84 PF0/TXD0
85 PF1/RXD0
78
I/O
I Reset signal input from the system controller "L": reset
I Ready to send signal input from the system controller
O Not used in this set. Connected to ground.
O Not used in this set. Connected to ground.
I Function selection signal input Fixed at "L" in this set.
— Power supply pin (+3.3 V)
O Not used in this set. (Open)
O Not used in this set. (Open)
O Not used in this set. (Open)
— Ground pin
— Power supply pin (+3.3 V)
O Reference voltage (+3.3 V) output pin
I Reference voltage (+3.3 V) input pin
O Reference voltage (+3.3 V) output pin
— Power supply pin (+3.3 V)
— Ground pin
I/O Two-way data bus with the S-RAM
— Ground pin
— Power supply pin (+3.3 V)
I/O Two-way data bus with the S-RAM
O Address signal output pin Not used in this set. (Open)
O Address signal output to the S-RAM
— Ground pin
— Power supply pin (+3.3 V)
O Address signal output to the S-RAM
O Serial data output to the CD-MP3 processor
O Serial data transfer clock signal output to the CD-MP3 processor
O Chip enable signal output to the CD-MP3 processor
O Not used in this set. (Open)
— Ground pin
— Power supply pin (+3.3 V)
O Output enable signal output to the S-RAM
O Write enable signal output to the S-RAM
O Lower-byte control signal output to the S-RAM
O Upper-byte control signal output to the S-RAM
O Not used in this set. (Open)
I Boot mode selection signal input "L": boot mode
I Chip select signal output to the S-RAM
O L/R sampling clock signal output to the CD-MP3 processor
I Function mode selection signal input Fixed at "H" in this set.
O System clock output (9 MHz)
— Ground pin
I System clock input (9 MHz)
— Power supply pin (+3.3 V)
I Over current detection signal input
O USB VBUS power on/off control signal output "H": power on
I/O Two-way data (positive) bus with the USB connector
I/O Two-way data (negative) bus with the USB connector
I Function mode selection signal input Fixed at "H" in this set.
O Not used in this set. (Open)
— Ground pin
O Clear to send signal output to the system controller
O Serial data signal output
Pin Description