User Manual

11
ATZB-EVB-XXX-XXX User Manual
AVR-09-2011
Connectors and Jumpers
The board connector pinouts and jumper settings are presented in Table 2 through
Table 7.
IMPORTANT NOTE:
All manipulations with connectors or jumpers should be done when
the board is not powered!
Table 2. Expansion slot pinout
Pin Name I/O Description
1 UART_RTS
Input
Request to Send Pin. RS-232 level.
2 UART_TXD
Input
Transmit Data Pin (meaning that the host
device will transmit data to this line). RS-232
level.
3 UART_CTS
Output
Clear To Send signal from the module.
Active low. RS-232 level.
4 UART_RXD
Output
Receive Data Pin (meaning that the host
device will receive data from this line). RS-232
level.
5 GND
Digital/analog ground
6 GND
Digital/analog ground
7 I2C_CLK
Input
I
2
C clock. It is connected to the I2C_CLK pin
of the module via low-voltage level translators.
For details, refer to ZigBit datasheet [1].
8 I2C_DATA
Bidirectional
I
2
C data. It is connected to the I2C_DATA pin
of the module via low-voltage level translators.
For details, refer to ZigBit datasheet [1].
9 +3.6V
Output Output of internal voltage regulator. Normally,
the voltage is 3.6 V.
10 V_XX
Output ZigBit supply voltage
11 RESET
Input
Reset Pin. Active low. This pin is connected in
parallel to the RESET button on the board.
12 USART_TXD
Output
This is Transmit Data Pin for USART0
interface of the ZigBit module. It is connected
directly to the USART0_TXD pin of the module.
Digital logic level. For details, refer to ZigBit
datasheet [1]. [1]
13 USART_RXD
Input
This is Receive Data Pin for USART0
interface of the ZigBit module. It is connected
directly to the USART0_RXD pin of the module.
Digital logic level. For details, refer to ZigBit
datasheet [1].