User's Manual

GS2101M-DS-001270, Release 1.0 Confidential 5
Table of Contents
Chapter 1 GS2101M Overview ........................................................................................................ 19
1.1 Product Overview ..................................................................................................................19
1.2 GS2101M Module Product Features .....................................................................................19
Chapter 2 GS2101M Architecture .................................................................................................... 23
2.1 Architecture Description ........................................................................................................23
2.1.1 Wireless LAN and System Control Subsystem ............................................................25
2.1.2 On-board Antenna / RF Port / Radio ............................................................................25
2.1.2.1 802.11 MAC .........................................................................................................25
2.1.2.2 802.11 PHY .........................................................................................................26
2.1.2.3 RF/Analog ............................................................................................................26
2.1.3 Network Services Subsystem ......................................................................................27
2.1.3.1 APP CPU .............................................................................................................27
2.1.3.2 Crypto Engine ......................................................................................................27
2.1.4 Memory Subsystem .....................................................................................................27
2.1.4.1 SRAM ..................................................................................................................27
2.1.4.2 ROM ....................................................................................................................28
2.1.4.3 OTP ROM ............................................................................................................28
2.1.4.4 Flash Interface .....................................................................................................28
2.1.5 Clocks ..........................................................................................................................28
2.1.6 Real Time Clock (RTC) Overview ................................................................................29
2.1.6.1 RTC Main Features .............................................................................................29
2.1.6.2 Real Time Clock Counter .....................................................................................30
2.1.6.3 RTC I/O ................................................................................................................30
2.1.7 GS2101M Peripherals ..................................................................................................30
2.1.7.1 SDIO Interface .....................................................................................................30
2.1.7.2 SPI Interface ........................................................................................................31
2.1.7.3 UART Interface ....................................................................................................31
2.1.7.4 I2C Interface ........................................................................................................31
2.1.7.5 GPIO ....................................................................................................................32
2.1.7.6 Sigma Delta ADC .................................................................................................32
2.1.7.7 PWM ....................................................................................................................32
2.1.8 System States ..............................................................................................................33
2.1.9 Power Supply ...............................................................................................................34
Chapter 3 Pin-out and Signal Description ........................................................................................ 35
3.1 GS2101Mxx Device Pin-out ..................................................................................................35
3.1.1 GS2101Mxx Module Pins Description ..........................................................................36
Table 7 Errata ..................................................................................................................38
3.1.2 GS2101M Pin MUX Function .......................................................................................39
3.1.3 GS2101M Program and Code Restore Options ...........................................................41
Chapter 4 Electrical Characteristics ................................................................................................. 43
4.1 Absolute Maximum Ratings ...................................................................................................43
4.2 Operating Conditions .............................................................................................................44
4.3 I/O DC Specifications ............................................................................................................45
4.3.1 I/O Digital Specifications (Tri-State) Pin Types 4mA, 12mA, and 16mA ......................45
4.3.1.1 I/O Digital Specifications for VDDIO=2.7V to 3.6V ..............................................45
4.3.2 RTC I/O Specifications .................................................................................................46