User's Manual

GS2011M-DS-001211, Release 0.9 Confidential Preliminary 5
Table of Contents
Chapter 1 About This Manual ............................................................................................... 7
Revision History ..............................................................................................................7
Audience ......................................................................................................................... 8
Standards ........................................................................................................................ 8
Documentation Conventions ........................................................................................... 8
Documentation .............................................................................................................. 11
Documentation Feedback ....................................................................................... 12
Contacting GainSpan Technical Support ...................................................................... 12
Returning Products to GainSpan .................................................................................. 13
Guidelines for Packing Components for Shipment .................................................. 13
Accessing the GainSpan Portal .................................................................................... 14
Ordering Information ..................................................................................................... 14
Chapter 2 GS2011M Overview .......................................................................................... 15
Product Overview .......................................................................................................... 15
GS2011M Module Product Features ............................................................................. 15
Chapter 3 GS2011M Architecture ...................................................................................... 19
Architecture Description ................................................................................................ 19
Wireless LAN and System Control Subsystem ............................................................. 21
Onboard Antenna / RF Port / Radio ........................................................................ 21
802.11 MAC ....................................................................................................... 21
802.11 PHY ........................................................................................................ 22
RF/Analog .......................................................................................................... 23
Network Services Subsystem .................................................................................. 23
APP CPU ............................................................................................................ 23
Crypto Engine ..................................................................................................... 23
Memory Subsystem ................................................................................................. 23
SRAM ................................................................................................................. 23
ROM ................................................................................................................... 24
OTP ROM ........................................................................................................... 24
Flash Interface .................................................................................................... 24
Clocks ...................................................................................................................... 24
Real Time Clock (RTC) Overview ........................................................................... 25
RTC Main Features ............................................................................................ 25
Real Time Clock Counter ................................................................................... 26
RTC I/O .............................................................................................................. 27
DC_DC_CNTL .................................................................................................... 27
GS2011M Peripherals ............................................................................................. 27
SDIO Interface .................................................................................................... 27
SPI Interface ....................................................................................................... 28
UART Interface ................................................................................................... 28
I2C Interface ....................................................................................................... 28
GPIO .................................................................................................................. 29
ADC .................................................................................................................... 29