User's Manual

Connect One Pin Descriptions
Pin Functional Description
Pin Signal type Description
1 GND Power
2 HDM Analog USB Host negative
3 HDP Analog USB Host positive
4 nRESET Input Reset Module. Pull LOW for 100mSec to Reset
5 PIOC4 I/O General In/Output Port
6 MSEL Input Mode select. Used for inducing rescue mode
and forced local Firmware-update.
7 DATA_RDY Output Data ready. Signals incoming Internet data.
8 ETX_EN Output RMII Transmit Enable
9 REFCLK Input RMII Reference Clock 50Mhz
10 ETX0 Output RMII transmit Data 0
11 ETX1 Output RMII transmit Data 1
12 CRSDV Input RMII Carrier sense and Data Valid
13 ERX0 Input RMII Receive Data 0
14 ERX1 Input RMII Receive Data 1
15 ERXER Input RMII Receive Error
16 EMDC Output Management data Clock
17 EMDIO I/O Management data I/O
18 PIOC5 I/O General In/Output Port
19 VBUS Output VBUS for USB Host
20 Readiness Output iChip Ready status line. See AT+I
programmers manual.
21 PIOC3 I/O General In/Output Port
22 VDD Power 3.3V
23-31 GND Power
32 nRF_LED Output RF LED indicator
33 ACH Input Analog Input
34 SPI1_CLK Input SPI 1 clock for host (Max 12MHz)
35 nSPI1_CS Input SPI 1 chip select for host
36 SPI1_MISO Output SPI 1 slave out for host master in
37 SPI1_MOSI Input SPI 1 slave in for host master out
38 SPI1_INT Output SPI 1 have data on his buffer
39 TXD0 Output UART 0 transmit
40 RXD0 Input UART 0 receive
41 nCTS0 Input UART 0 clear to send
42 nRTS0 Output UART 0 request to send
43 DDM Analog USB device negative
44 DDP Analog USB device positive
Table 3-1: Connector Signal Description
WiReach BK Data Sheet 4-2