- Silex Technology Embedded Intelligent Module Developer's Reference Guide
Interfacing the SX-560
Silex
Page 41
Part Number 140-00192-100
Signal
Pin
Type
Description
CTS1-
28
Input
Serial Port 2 Clear to Send
RXD1
34
Input
Serial Port 2 Receive Data
TXD2
38
Output
Console Port Transmit Data
RXD2
40
Input
Console Port Receive Data
USB+
19
Input/Output
USB Data + (SEE NOTE)
USB -
21
Input/Output
USB Data – (SEE NOTE)
SPI_CS-
25
Output
Serial Peripheral Interface Chip
Select (high-true)
SPI_MOSI
31
Output
Serial Peripheral Interface Data
Out
SPI_MISO
33
Input
Serial Peripheral Interface Data In
SPI_CLK
27
Output
Serial Peripheral Interface Clock
RESETI-
1
Output
Power-on Reset (low true)
IIC_SDC
37
Input/Output
IIC (I2C) clock
IIC_SDA
39
Input/Output
IIC (I2C) data
+3.3VDC
6, 18, 23, 30,
35
Power
Power VCC Input
GND
5, 17, 24, 29,
36
Power
Power Ground
The SX-560 module uses the 40-pin receptacle with metal fitting and boss made by Hirose (part number
DF12-40DS-0.5V81). This receptacle will work with the following mating female headers:
Hirose part number: DF12(x.x)-40DP-0.5V81
Where “x.x” is 3.5, 4.0, or 5.0 (the stacking height of the header); for example, DF12(3.5)-40DP-0.5V81. For
additional information, go to the Hirose website at www.hirose-connectors.com.
SX-560 Power Requirements
The SX-560 power consumption is typically 280mA for wireless-to-serial usage, with a peak consumption
is 400mA @ 3.3V. In powersave mode (refer to Chapter 4 for more information) with the SX-560
connected wirelessly to an access point, the consumption is 60mA while idling and an average of about
73mA including wakenings to answer the beacon poll.
The above numbers assume that the only active connections are the 802.11 wireless interface and the
serial interface (for example, there are no connections to the GPIOs). The power supply that you select
must have adequate capacity to handle the peak power plus any loads with an adequate safety margin.
Power consumption specifications are subject to change; contact Silex for more information.
IMPORTANT: If your device does not use the USB port, the USB+ and USB- signals on the OEM interfaced should be terminated
with a 15K pull-down resistor to prevent errors on startup.