User's Guide

UC864-E-AUTO / AWS-AUTO Hardware User Guide
1vv0300795 Rev.11 – 2010/11/18
Reproduction forbidden without Telit Communications S.p.A’s. written authorization - All Rights Reserved. Page 53 of 78
56 GPIO_19 I/O GPIO19 Configurable GPIO CMOS 2.6V 2mA INPUT LOW LOW
58 GPIO_20 I/O GPIO20 Configurable GPIO CMOS 2.6V 2mA INPUT LOW LOW
72 GPIO_21 I/O GPIO21 Configurable GPIO CMOS 2.6V 2mA INPUT HIGH HIGH
64 GPIO_22 I/O GPIO22 Configurable GPIO
CMOS 1.8V
(not 2.6V)
2mA INPUT LOW HIGH
Not all GPIO pads support all these three modes:
• GPIO4 supports all three modes and can be input, output, RF
Transmission Control (Alternate function)
• GPIO5 supports all three modes and can be input, output, RFTX monitor
output (Alternate function)
• GPIO6 supports all three modes and can be input, output, alarm output
(Alternate function)
• GPIO7 supports all three modes and can be input, output, buzzer output
(Alternate function)
Some alternate functions for UC864-E-AUTO / AWS-AUTO may be added if needed.