Silex technology Embedded Intelligent Module SX-560 - Manual (Page 47)

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.