EM250-RTR Ember, EM250-RTR Datasheet - Page 45

• 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

3
3
3
1
0
0
SC1_I2CCTRL1
0
1
0
0
0
1
Nominal Rate
100kbps
375kbps
400kbps
Note that, at 400kbps, the I
I
The I
SC_I2CSTART
rizes these frames.
2
C compliant, the rate needs to be lowered to 375kbps.
2
0
0
0
C Master controller supports generation of various frame segments controlled with the register bits
SC1-2 mode
SC1-2 mode
SC1-2 mode
,
SC_I2CSTOP
Frame Segments
2
,
SDA
SDA
SCL
SCL
C specification requires the minimum low period of SCL to be 1.3µs. To be strictly
SDA
SDA
SDA
SCL
SCL
SCL
SC_I2CSEND
outSLAVE
outSLAVE
outSLAVE
outSLAVE
SDA
SDA
SCL
SCL
outSLAVE
SDA
outSLAVE
outSLAVE
SDA
outSLAVE
outSLAVE
outSLAVE
SDA
SCL
SCL
SCL
Table 23. SC1 I
SC1_RATELIN
14
15
14
Table 22. I
out
out
out
out
out
out
out
out
out
out
I
2
C start segment
, and
RX[7]
RX[7]
2
TX[7]
TX[7]
C Nominal Rate Programming
SC_I2CRECV
2
C Master Frame Segments
RX[6]
RX[6]
TX[6]
TX[6]
I
I
2
2
C transmit segment – after transmit with ACK
C receive segment - after receive with ACK
I
2
C receive segment – transmit with ACK
I
RX[5]
RX[5]
2
TX[5]
TX[5]
C transmit segment
I
2
in the
C re-start segment
SDA
SCL
SC1_RATEEXP
3
1
1
RX[4]
RX[4]
TX[4]
TX[4]
SC1_I2CCTRL1
outSLAVE
outSLAVE
SDA
SCL
out
out
RX[3]
RX[3]
TX[3]
TX[3]
- after (re-)start frame
- after transmit or frame with NACK
RX[2]
RX[2]
TX[2]
TX[2]
registers. Table 23 summa-
RX[1]
RX[1]
TX[1]
TX[1]
120-0082-000I
RX[0]
RX[0]
TX[0]
TX[0]
EM250
(N)ACK
(N)ACK
(N)ACK
(N)ACK
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