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F8913D
User Manual
Xiamen Four-Faith Communication Technology Co.,Ltd.
Page 21 of 99
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3.2 Analog and Digital I/O
3.2.1 Signal Definition
The F8913D support ADC and digital I/O line passing.The ADC and digital I/O can be
inquired and configured by AT commands.The pins support ADC and digital I/O fuctions
are listing in the table 3-1
Table 3-1 Analog and Digital I/O pins (SMT)
Pin Number
Pin Name
Default Function
6
D4
GPIO
7
D3
GPIO
11
D2
ADC/GPIO
19
D1
ADC/GPIO
20
D0
ADC/GPIO
3.2.2 Function Description
1.Digital I/O
The Digital D3&D4 support 4mA drive capability.
2.ADC
The ADC support 12 bits of resolution. The ADC input voltage range is 0V to 5V.
Please configure the right value when operate the I/O.
Table 3-3 I/O Configuration
Value
Description
0
Disabled
1
ADC
2
GPIO input
3
GPIO output low
4
GPIO output high
5
Pluse input count
Notice: Please reference the AT command “AT+DMn” in the charpter 4 for the details.