General Purpose Io; At Port Switch; Secure Digital Io; Table 45. Gpio Interface Pads - Sierra Wireless AirPrime AR7558 Hardware Integration Manual

Hardware Integration Guide
6.8.

General Purpose IO

The AirPrime AR7558 defines 10 GPIOs for customer use.
Table 45. GPIO Interface Pads
Pad Name
CA10 GPIO1
CA11 GPIO2
CB10 GPIO3
CB11 GPIO4
CC7 GPIO5
CC8 GPIO6
CC9 GPIO7
CD7 GPIO8
CE5 GPIO9
CF5 GPIO10
Refer to the Digital IO Characteristics section
6.8.1.

AT Port Switch

The AirPrime AR7558 supports switching the active AT command port between USB and UART.
Table 46. AT Port Switch States
Pad Name
AB5 AT_PORT_SW
6.9.

Secure Digital IO

The AirPrime AR7558 defines a 1.8V SDIO interface for future use.
Table 47. SDIO Interface Pads
Pad Name
AA11 SDIO_DATA0
AA10 SDIO_DATA1
AB9 SDIO_DATA2
AB10 SDIO_DATA3
AB8 SDIO_CMD
AA9 SDIO_CLK
4116922
Pull State Function
Pull-Down Available-GPIO
Pull-Down Available-GPIO
Pull-Down Available-GPIO
Pull-Down Available-GPIO
Pull-Down Available-GPIO
Pull-Down Available-GPIO
Pull-Down Available-GPIO
Pull-Down Available-GPIO
Pull-Down Available-GPIO
Pull-Down Available-GPIO
for electrical characteristics of these signals.
State
Low (default)
High
Direction
Input/Output
Input/Output
Input/Output
Input/Output
Output
Output
Rev 1.1
If Unused
Leave Open
Leave Open
Leave Open
Leave Open
Leave Open
Leave Open
Leave Open
Leave Open
Leave Open
Leave Open
AT Port
Available on USB
Available on UART1
Function
SDIO Data bit 0
SDIO Data bit 1
SDIO Data bit 2
SDIO Data bit 3
SDIO Command
SDIO Clock
Baseband Specification
Multiplexed
Function
Band indicator1
Band indicator2
Band indicator3
If Unused
Leave Open
Leave Open
Leave Open
Leave Open
Leave Open
Leave Open
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