EM351-RTR Ember, EM351-RTR Datasheet - Page 90

• Manufacturer Part Number: EM351-RTR
• Description: IC RF TXRX ZIGBEE 128KB 48QFN
• Manufacturer: Ember

Specifications of EM351-RTR

• Frequency: 2.4GHz
• Data Rate - Maximum: 250kbps
• Modulation Or Protocol: 802.15.4 Zigbee
• Power - Output: 3dBm
• Sensitivity: -100dBm
• Voltage - Supply: 2.1 V ~ 3.6 V
• Current - Receiving: 26mA
• Current - Transmitting: 31mA
• Data Interface: PCB, Surface Mount
• Memory Size: 128kB Flash, 12kB RAM
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Applications: -
• Other names: 636-1010-2

The GPIO pins that can be assigned to these signals are shown in Table 8-5.
8.4.2
Both serial controllers, SC1 and SC2, support SPI slave mode. SPI slave mode is enabled by the following
register settings:
The SPI slave controller receives its clock from an external SPI master device and supports rates up to 5 Mbps.
Direction
GPIO Configuration
SC1 pin
SC2 pin
The serial controller mode register, SCx_MODE, is 2
The SC_SPIMST bit in the SPI configuration register, SCx_SPICFG, is 0
Set Up and Configuration
MOSI
Input
Input
PB2
PA0
Table 8-5. SPI Slave GPIO Usage
Final
8-15
Alternate Output
(push-pull)
Output
MISO
PB1
PA1
SCLK
Input
Input
PB3
PA2
EM351 / EM357
nSSEL
Input
Input
PB4
PA3
120-035X-000G