Atmel ATREB233-XPRO, Руководство пользователя

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REB233-XPRO User Guide [USER GUIDE]
42188A-MCU-11/2013
12
RF233
Pin Name
Pin Name
Description
13 USART_RX
14 USART_TX
15 SPI_SS_A 23 SEL Slave select for SPI. Should be unique if
possible.
16 SPI_MOSI 22 MOSI Master out slave in line of Serial peripheral
interface. Always implemented, bus type.
17 SPI_MISO 20 MISO Master in slave out line of Serial peripheral
interface. Always implemented, bus type.
18 SPI_SCK 19 SCLK Clock for Serial peripheral interface. Always
implemented, bus type.
19 GND Ground.
20 VCC Power for extension board.
4.2.2 Current Monitoring (X3)
X3 enables current monitoring using an external multimeter.
Connect multimeter between X3-1 and X3-2 to measure the current used by the AT86RF233.
Warning When not monitoring current the strap need to be inserted in order to provide power to the board.
Figure 4-2. X3 Current Monitor
Table 4-2. X3 Current Measurement
X3 Pin Function
1 - Vdd 3.3V pin on the J100 via L1.
2 - V_TRX 3.3V pin on the AT86RF233.
4.3 U2 Serial EEPROM
The REB233 contains a serial EEPROM, AT24MAC602, with factory programmed MAC addresses available
via the I2C interface of J100.
The memory organisation is as documented in
“Persistence Memory” on page 13 . The structure is located
from EEPROM address 0x00, device address ‘1010’