Block Diagram - Usb Section - Sony HCD-GTX88 Service Manual

HCD-GTX88
6-4. BLOCK DIAGRAM — USB SECTION —
VBUS
1
CN952
D–
D+
(USB)
GND
4
DATA
CLK
GATE
ST REQ
A IN
BCK IN
LRCKIN
RF/SERVO
B
SECTION
BUS3
(Page 31)
BUS2
BUS1
BUS0
REQ
CCE
BUCK
HCD-GTX88
USB CONTROL
IC901
VBUS
POWER ON/OFF
SWITCH
VBUS+5V
IC915
5 OUT IN 4
FLG 3 77 P75/USBOC
EN 1 78 P76/USBPON
80 D–
79 D+
PF1/RXDO
85
86 PF2/SCLK0/CTSO/CLK/TB0OUT0
94 PN5/HSS1/SCL1
97 PG2
93 PN4/HSS0/SDA1
PN3/HSCLK
92
71 P83/CS3/WAIT/TA5OUT
58 P64/A20
57 P63/A19
56 P62/A18
P61/A17
55
96 PG3
60 P66/A22
59 P65/A21
18
P00/D0
I I
P07/D7 25
•
P10/D8 28
I I
P17/D15 35
37
P41/A1
I I
P47/A7 43
•
P50/A8 46
I I
54
P60/A16
64
P70/RD
P71/SRWR 65
66
P72/SRLLB
67
P73/SRLUB
P82/CS2 70
RESET 1
PC0/INT0 2
PF0/TXD0 84
PF4/RXD1/SPDI 88
PF3/TXD1/SPD0 87
X1 75
X901
9kHz
X2 73
34 34
S-RAM
IC921
7 I/O0
I I
I/O3
10
•
13 I/O4
I I
16 I/O7
•
29 I/O8
I I
32 I/O11
•
• Signal Path
I/O12
35
I
I
: DIGITAL
38 I/O15
44 A0
: USB
I I
A2
42
•
27 A3
I I
24 A6
•
21 A7
I I
18 A10
•
5
A11
I I
1 A15
41 OE
17 WE
LB
39
UB
40
CE
16
SYSTEM CONTROL
IC401 (4/6)
31 USBRST
38 USB SERIAL RTSO
34 USB SERIAL CTSO
35 USB SERIAL TXDO
36 USB SERIAL RXDO