![](http://datasheet.mmic.net.cn/Pericom/PI7C9X7952AFDE_datasheet_99389/PI7C9X7952AFDE_11.png)
PI7C9X7952
PCI Express Dual UART
Datasheet
Page 11 of 68
May 2013 – Revision 1.4
Pericom Semiconductor
4. PIN ASSIGNMENT
4.1. PIN LIST of 128-PIN LQFP
PIN
NAME
PIN
NAME
PIN
NAME
PIN
NAME
1
VDDR
33
VDDC
65
NC
97
NC
2
VDDR
34
VDDCAUX
66
NC
98
VDDC
3
VSS
35
VSS
67
NC
99
VDDC
4
VSS
36
PERST_L
68
NC
100
VSS
5
SCAN_EN
37
TEST
69
VDDC
101
VSS
6
XTLI
38
GPIO[0]/DEQ[1]
70
VSS
102
NC
7
XTLO
39
GPIO[1]/DEQ[2]
71
SOUT[0]
103
NC
8
SR_CLK_O
40
VDDR
72
RTS[0]/EEPROM_BYPASS
104
NC
9
SR_DI
41
VDDR
73
DTR[0]
105
NC
10
SR_DO
42
VSS
74
SIN[0]
106
JTAG_TDI
11
SR_CS
43
GPIO[2]/DEQ[3]
75
CTS[0]
107
JTAG_TMS
12
VDDC
44
GPIO[3]/TXTERMADJ[0]
76
DSR[0]
108
JTAG_TCK
13
VSS
45
GPIO[4]/TXTERMADJ[1]
77
RI[0]
109
JTAG_TDO
14
WAKEUP_L
46
GPIO[5]/RXTERMADJ[0]
78
DCD[0]
110
JTAG_TRST_L
15
VSS
47
GPIO[6]/RXTERMADJ[1]
79
SOUT[1]
111
NC
16
CLKINP
48
GPIO[7] /SR_ORG
80
RTS[1]
112
NC
17
VDDA
49
DRIVER_SEL0[0]/HI_DRV
81
DTR[1]
113
NC
18
CLKINN
50
DRIVER_SEL0[1]
82
SIN[1]
114
NC
19
VSS
51
DRIVER_SEL0[2]/LO_DRV
83
CTS[1]
115
VDDR
20
VDDC
52
DRIVER_SEL0[3]/DTX[0]
84
DSR[1]
116
VDDR
21
VTT
53
VDDC
85
RI[1]
117
VSS
22
TXN
54
VSS
86
DCD[1]
118
VSS
23
TXP
55
DRIVER_SEL1[0]/DTX[1]
87
NC
119
NC
24
VSS
56
DRIVER_SEL1[1]/DTX[2]
88
NC
120
NC
25
VDDCAUX
57
DRIVER_SEL1[2]/DTX[3]
89
NC
121
NC
26
RXP
58
DRIVER_SEL1[3]/DEQ[0]
90
NC
122
NC
27
VSS
59
NC
91
NC
123
NC
28
RXN
60
NC
92
NC
124
NC
29
RREF
61
NC
93
NC
125
NC
30
VDDA
62
NC
94
NC
126
NC
31
VSS
63
VDDR
95
VDDR
127
VDDC
32
VDDA
64
VSS
96
VSS
128
VDDC
Table 4-1 Pin-List of 128-Pin LQFP
13-0092