EM250-RTR Ember, EM250-RTR Datasheet - Page 106

• Manufacturer Part Number: EM250-RTR
• Description: IC ZIGBEE SYSTEM-ON-CHIP 48-QFN
• Manufacturer: Ember
• Series: EM250r

Specifications of EM250-RTR

• Frequency: 2.4GHz
• Modulation Or Protocol: 802.15.4 Zigbee
• Applications: Home/Building Automation, Industrial Control and Monitoring
• Power - Output: 3dBm
• Sensitivity: -97dBm
• Voltage - Supply: 2 V ~ 3.6 V
• Current - Receiving: 35.5mA
• Current - Transmitting: 33mA
• Data Interface: PCB, Surface Mount
• Memory Size: 128kB Flash, 5kB SRAM
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-QFN
• For Use With: 636-1009 - PROGRAMMER USB FLASH EM250/260
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Rate - Maximum: -
• Other names: 636-1000-2

EM250
6 SIF Module Programming and Debug Interface
106
120-0082-000I
SIF is a synchronous serial interface developed by Cambridge Consultants Ltd. It is the primary programming
and debug interface of the EM250. Therefore, any design implementing the EM250 should make the SIF signals
readily available. The SIF module allows external devices to read and write memory-mapped registers in real-
time without changing the functionality or timing of the XAP2b core. See the EM250 Reference Design for de-
tails regarding the implementation of the SIF interface.
The SIF interface provides the following:
The pins are:
Because the SIF module directly connects to the program and data memory buses within the EM250, it has ac-
cess to the entire Flash and RAM blocks, as well as the on-chip registers.
The maximum serial shift speed for the SIF interface is 48MHz. SIF interface accesses can be initiated even
when the chip is in idle and deep sleep modes. An edge on nSIF_LOAD wakes the chip to allow SIF cycles.
IC production test (especially analog)
PCB production test
XAP2b code development
Product control and characterization
nSIF_LOAD
SIF_CLK
SIF_MOSI
SIF_MISO