Silex technology Embedded Intelligent Module SX-560, Руководство разработчика

Страница: 17 / 110

Installing the Evaluation Daughtercard Silex Page 11
Part Number 140-00192-100
Power Management
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). Power consumption specifications
are subject to change; contact Silex for more information.
Serial Ports
Standard serial RS-232 signals are available on the DB-9 male connectors J3, J4 and J5 for Serial Ports
1, 2 and 3 (Serial Port 3 is dedicated as a console port, while Serial Port 2 can be set as either a console
port or an I/O port), as shown in Figure 4. Serial Ports 1 and 2 include the RTS and CTS modem signals
for hardware flow control, and Serial Port 1 can also support DCD, DTR, and DSR by setting the
appropriate jumpers on the JP9 header (see the
Using the GPIO Special Functions section later in this
chapter). Serial Port 3 does not support any modem signals, and is fixed for operation at 115.2Kbps, no
parity, no flow control, and 8-bit character size.
The DB-9 connectors use industry-standard PC-compatible pinouts as shown below:
Figure 4 Serial Port DB-9 Connector
Table 5 DB-9 Pinouts for RS-232 Mode
DB-9 RS-232 Signal Type
1 DCD Input
Enabled via JP9 header (Serial Port 1 only)
2 RXD Input
3 TXD Output
4 DTR Output
Enabled via JP9 header (Serial Port 1 only)
5 Ground
6 DSR Input
Enabled via JP9 header (Serial Port
1 only)