User's Manual

Nano Socket iWiFi G2 N2 –Datasheet
15
2) Pin Functional Description
J8 Pin Assignment
Pin
Signal
Type
Description
1
ERX0
Input
RMII Receive Data 0
2
ERX1
Input
RMII Receive Data 1
3
EMDC
Output
Management Data Clock
4
ERXER
Input
RMII Receive Error
5
RMII REFCLK
Input
RMII 50Mhz Reference Clock
6
GND
Power
Ground
7
VDD
Power
VDD
8
RXD0
Input
UART 0 Receive
9
TXD0
Output
UART 0 Transmit
10
nCTS0
Input
UART 0 Clear To Send
11
nRTS0
Output
UART 0 Request To Send
12
DATA RDY
Output
Data Ready - High when data rec. from Internet is buffered
13
MSEL
Input
Mode Select – Rescue and force F/W update
14
nReset
Input
Reset Module – Pull LOW for 100mSec to Reset
15
nRF LED
Output
RF LED Indicator
J9 Pin Assignment
1
ETX0
Output
RMII Transmit Data 0
2
ETX1
Output
RMII Transmit data 1
3
EMDIO
In/out
Management data I/O
4
CRSDV
Input
RMII Carrier Sense and Data Valid
5
ETXEN
Output
RMII Transmit Enable
6
nSPI CS
Input
SPI1 Host Chip Select for host
7
SPI1 CLK
Input
SPI1 Clock for host (Max 12MHz)
8
SPI1 MISO
Output
SPI1 Slave Out for host master in
9
SPI1 MOSI
Input
SPI1 Slave in for host master out
10
SPI1 INT
Output
SPI1 have data on buffer
11
Readiness
Output
High when iChip Ready for commands