User guide

Eddy User's Guide
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2.4 Eddy-S4M v2.5
Eddy-S4M is a high-performance mini PCI type embedded module which include ARM9 processor 32MB SD
RAM, 8MB DataFlash, 10/100Base-T Ethernet port, Serial 4 Channel, RTC with Battery, MicroSD, 4ch ADC,
temperature sensor, max 34 programmable GPIO pins.
Eddy-S4M is 59.75 x 61.8mm size. If using Eddy-S4M-JIG board, user could develop their customized device
without other H/W development, which minimizing time and cost to develop.
Referring Example code and Evaluation Kit circuit allow developer to design device they want.
Eddy-S4M v2.5 is compatible with Eddy-S4M v2.1. The specification is as follows.
Classification
Type
Eddy-S4M v2.5
Hardware
CPU
AT91SAM9G20 (400MHz)
Memory
AT45DB642D, 8MB Data Flash
IS42S16160B, 32 MB SDRAM
Ethernet MC/PHY
10/100 Base-T MAC
KSZ8041NLi PHYceiver Auto MDI/MDIX
Serials
Port 0,1 : RS232 (DB9 male)
Port 0 : Full Signal
Port 1 : TxD, RxD, RTS, CTS only
Port 2,3 : COMBO (Terminal Block 5pin)
* COMBO : RS422/RS485 is S/W selectable
USB 2.0 FS
3 Host /1 Device Port, 2.0 FS (12Mbps)
Use to GL850A USB Hub chip
RTC
Real Time Clock, RTC DS1340U-33+
Connect to I2C I/F
Battery Holder
CR1220(38mAh) 3V Lithium Battery
ADC
4-Channel 10 Bit ADC
TWI(I2C)
Master, Multi-Master and Slave Mode
SPI
8 to 16-bit Programmable Data Length
Four External Peripheral Chip Selects
MCI
SD Spec V2.0 [SDHC], MMC Spec V4.2 support
USB to SD Controller, 16GB, 12Mbits/s
GPIO
Max. 34 Programmable I/O Pins