3Jtech uModem Technical Document page 7

58 DH14
59 DH1
60 DH15
61 DH0
62 SRAMS#
63 SRAMR#
64 A4
65 A5
66 A6
67 A7
68 VDD18
69 A8
70 A13
71 A14
72 A15
73 NC
74 NC
75 GND
76 NC
77 NC
78 NC
79 NC
80 NC
81 NC
82 NC
83 VDD33
84 NC
85 TE#
86 NC
87 HS#
88 NC
89 GND
90 AA#
91 NC
92 NC
93 OP1
94 OP2
95 SCLK
96 SDAT
97 VDD33
98 SUSPEND
99 RPUENO
100 DM
101 DP
102 RS#
103 RMWK#
104 VDD18
105 CKSOCI
106 CKSOCO
107 GND
108 NC
109 NC
110 NC
111 NC
112 NC
113 NC
114 VDD33
115 NC
116 NC
117 VDD18
118 TEST
2003/6 From 3JTech
I/O High speed data bus bit 14
I/O High speed data bus bit 1
I/O High speed data bus bit 15
I/O High speed data bus bit 0
O Chip select signal for SRAM
O Output enable signal for SRAM
O Address bus bit 4
O Address bus bit 5
O Address bus bit 6
O Address bus bit 7
Power 1.8V power
O Address bus bit 8
O Address bus bit 13
O Address bus bit 14
O Address bus bit 15
O Reserved
I Reserved
Power Digital ground
O Reserved
I Reserved
I Reserved
O Reserved
O Reserved
O Reserved
I Reserved
Power 3.3V power
O Reserved
Control the optional relay to switch off the attached
O
telephone set
O Reserved
Indicate modem in a V.90 connection or, when flashing,
O
in handshaking procedure
I Reserved
Power Digital ground
Indicate modem in auto answer mode or, when flashing,
O
detects an incoming ring signal
I Reserved
I Reserved
O General purpose output pin
O General purpose output pin
O Serial clock output for EEPROM
IO Serial bi-directional data signal for EEPROM
Power 3.3V power
O USB suspend signal output
O USB connect or disconnect control
I/O USB data signal DM(D-)
I/O USB data signal DP(D+)
I Reset signal input (active low)
I Reserved
Power 1.8V power
Crystal oscillator input
I, 1.8V
Crystal oscillator output
O, 1.8V
Power Digital ground
I Reserved
I Reserved
O Reserved
I Reserved
I Reserved
I/O Reserved
Power 3.3V power
I/O Reserved
O Reserved
Power 1.8V power
I, Pull low Reserved
Revision 1.0
Research & Development
Page 7 of
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