User's Manual

Wireless Autani Transceiver (WAT2)
Users Manual
4. EM250 Peripherals and
Capabilities
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The information contained in this document is proprietary and confidential information of Autani Corporation. Any use of this
information without the expressed written consent of Autani Corporation is prohibited.
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16 GPIO8 DI/DO/AO GPIO, ADC Reference Output, External Input of TMR1,
External Enable of TMR2, IRQA
17 GPIO9 DI/DO GPIO, SC1-Tx, SC1-SPI_MOSI, SC1-I2C_DATA, Capture
Input A of TMR1
18 GPIO10 DI/DO GPIO, SC1-Rx, SC1-SPI_MISO, SC1-I2C_CLK, Capture
input B of TMR1
19 SIF_CLK DI SIF Programming Interface Clock
20 SIF_MISO DO SIF Programming Interface Data Output
21 SIF_MOSI DI SIF Programming Interface Data Input
22 LOADB DI/DO SIF Programming Interface Load Strobe
23 GPIO16 DI/DO GPIO, TMR1 Output B, Capture Input B of TMR2, IRQD
24 GPIO15 DI/DO GPIO, TMR1 Output A, Capture Input A of TMR1, IRQC
25 GPIO14 DI/DO GPIO, TMR2 Output B, Capture Input B of TMR1, IRQB
26 GPIO13 DI/DO GPIO, TMR2 Output A, Capture Input A of TMR1
27 Ground GND Ground
28 Ground GND Ground
Unused GPIO should be left unconnected. The EM250 should be configured to hold
unconnected GPIO in a known state.
DI = Digital Input
DO = Digital Output
AI = Analog Input
AO = Analog Output
V
DD
= Power Input
GND = Ground