User's Manual

Smart Machine Smart Decision
SIM7100A_User Manual_V1.01 2014-12-11
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B. SIM7100A GPIOs List
Table 50: SIM7100A GPIOs list
Name GPIO Index Default Function Alternate Function
PCM_IN 0 GPIO Interrupt [LEVEL/LOW] PCM_IN
STATUS_LED 1 Status led GPIO1
PCM_SYNC 2 GPIO [IN] PCM_SYNC
PCM_CLK 3 GPIO [OUT/LOW] PCM_CLK
RF_SWITCH 4 RF Switch GPIO4
PCM_OUT 5 GPIO [OUT/LOW] PCM_OUT
KBR4 6 Keypad GPIO
KBR3 7 Keypad GPIO
KBR2 8 Keypad GPIO
KBR1 9 Keypad GPIO
KBR0 10 Keypad GPIO
KBC4 11 Keypad GPIO
KBC3 12 Keypad GPIO
KBC2 13 Keypad GPIO
KBC1 14 Keypad GPIO
KBC0 15 Keypad GPIO
CTS 33 CTS GPIO
RTS 34 RTS GPIO
DTR 35 DTR wake up module GPIO
DCD 36 DCD GPIO
RI 37 RI wake up host GPIO
GPIO40 40 Module power up status GPIO
GPIO41 41 Wake up host GPIO
GPIO42 42 GPIO[OUT/LOW] GPIO
GPIO43 43 Wake up module GPIO
GPIO44 44 GPIO[OUT/LOW] GPIO
C. Digital I/O Characteristics
Table 51: Digital I/O characteristics
Parameter Description
1.8V Digital I/O
Unit
Min Typ Max
V
IH
High-level input
voltage
1.26 1.8 2.1 V
V
IL
Low-level input
voltage
-0.3 0 0.63 V
V
OH
High-level output
1.35 - 1.8 V