Wi-Fi Module Developer's Guide

Application Interface Specifications
38 Module Hardware Description May 31, 2008
UART1:
21 TXD_N UART1 TXD I L 15K PU V
IH
I
OUT
< 8 mA 2 3.15 V
11 RXD_N UART1 RXD O L
V
IL
V
OL
V
OH
I
OUT
< 8 mA
-0.3
2.575
00.8
0.4
V
9 RTS_N UART1 RTS I L
15 CTS_N UART1 CTS O L
19 DTR_N UART1 DTR I L
13 DSR_N UART1 DSR O L
17 DCD_N UART1 DCD O L
23 RI_N UART1 RI O L
UART2:
29 RXD2 UART2 RXD O L 15K PU
V
IH
V
IL
V
OL
V
OH
I
OUT
< 8 mA
2
-0.3
2.75
0
0
3.15
0.8
0.4
V
31 TXD2 UART2 TXD I L 15K PU
33 RTS2 UART2 RTS I L 15K PU
35 CTS2 UART2 CTS O L 15K PU
USB:
10
USB_VBUS
USB bus
power
IH 5.05.25V
12 USB_DP USB bus
serial data
I/O H V
14 USB_DN USB bus
serial data
I/O L V
SIM Card:
50
SIM_PD_N
SIM presence
detect
I
Refer to G24
Hardware
Description-
6889192V27
Stacked
Configuration
48 SIM_VCC SIM supply O
44
SIM_RST_
N
SIM reset O
52 SIM_DIO SIM serial
data
I/O
46 SIM_CLK SIM clock O
Table 3-3: Host Interface Specifications (Cont.)
Pin #
Signal
Name
Description I/O
Active
H/L
Internal
PU/PD
Parameter Conditions
Level
Min Typ Max Units