User's Manual

Pin-out and Signal Description GS2101M Low Power WiFi Module Data Sheet
GS2101Mxx Device Pin-out
36 Confidential GS2101M-DS-001270, Release 1.0
3.1.1 GS2101Mxx Module Pins Description
Table 7, page 36 describes the GS2101Mxx module pin signal description.
Table 7 GS2101Mxx Module Pin Signal Description
Pins Name Voltage
Domain
Internal Bias after
Hardware Reset
Drive
Strength
(mA)
Signal State Description
1 GND 0V Not Applicable Analog port Ground
2 ADC_SD_0p VIN_3V3 Not Applicable Analog port
Sigma Delta ADC
differential positive input 0
or Sigma Delta DAC
positive output 0
3 ADC_SD_0n VIN_3V3 Not Applicable Analog port
Sigma Delta ADC
differential negative input 0
or Sigma Delta DAC
negative output 0
4 ADC_SD_1p VIN_3V3 Not Applicable Analog port
Sigma Delta ADC
differential positive input 1
5 ADC_SD_1n VIN_3V3 Not Applicable Analog port
Sigma Delta ADC
differential negative input 1
6 ADC_SD_2p VIN_3V3 Not Applicable Analog port
Sigma Delta ADC
differential positive input 2
7 ADC_SD_2n VIN_3V3 Not Applicable Analog port
Sigma Delta ADC
differential negative input 2
8 GND 0V Not Applicable Analog Port Ground
9 GND 0V Not Applicable Analog Port Ground
10 VRTC VRTC Not Applicable Analog port
Embedded Real Time Clock
Power Supply
11 EXT_RTC_RESET_n VRTC None Digital Input Device Reset Input
12
RTC_IO_2
(see Note 2)
VRTC None 1
RTC Digital
Input/Output
Embedded Real Time Clock
Input/Output 2
13
VPP
(see Note 7)
VPP Not Applicable Analog port
Programming Voltage for
OTP Memory
14 GND (see Note 3) 0V Not Applicable 4 Analog port Ground
15 VIN_3V3 VIN_3V3 Not Applicable Analog port Single Supply Port
16
GPIO10/PWM0 (see
Note 3)
VIN_3V3 Pull-down 4
Digital
Input/Output
GPIO/Pulse Width
Modulator 0
17
GPIO9/I2C_CLK
(see Note 3 and Note 5)
VIN_3V3 Pull-down 12
Digital
Input/Output
GPIO/Inter-Integrated
Circuit Clock