User's Manual

GS2101M Low Power WiFi Module Data Sheet GS2101M Overview
GS2101M Module Product Features
GS2101M-DS-001270, Release 1.0 Confidential 21
• Interfaces:
• SDIO:
– Compliant to SDIO v2.0 specification
– Interface clock frequency up to 40 MHz
– Data transfer modes: 4-bit, 1-bit SDIO, SPI
– Device mode only (slave)
• SPI:
– One (1) general-purpose SPI interfaces (each configurable independently as
master or slave)
– The SPI pins are muxed with other functions such as GPIO
– Supports clock rates of up to 30 MHz (master mode) and up to 10 MHz (slave
mode)
– Protocols supported include: Motorola SPI, TI Synchronous Serial Protocol
(SSP) and National Semiconductor Microwire
– Supports SPI mode 0 thru 3 (software configurable)
• UART:
– Two (2) multi-purpose UART interfaces operating in full-duplex mode
– 16450/16550 compatible
– Optional support for flow control using RTS/CTS signaling for high data
transfer rates
– Standard baud rate from 9600 bps up to 921.6K baud (additional support
for higher non-standard rates using baud rates up to 7.5 MHz)
• GPIOs:
– Up to 16 configurable general purpose I/O
• Single 3.3V supply option
• Three (3) PWM output
•I
2
C master/slave interface
• Three (3) 16-bit Sigma Delta ADC channels, for sensors and measurements
• One (1) RTC I/O that can be configured as:
– Alarm input to asynchronously awaken the chip
– Support control outputs for sensors
• Embedded RTC (Real Time Clock) can run directly from battery
NOTE: Tested with current test platform up to 33 MHz.