EM250-DEV Ember, EM250-DEV Datasheet - Page 45
![KIT DEV FOR EM250](/photos/14/10/141065/em250-jmp_sml.jpg)
EM250-DEV
Manufacturer Part Number
EM250-DEV
Description
KIT DEV FOR EM250
Manufacturer
Ember
Series
InSightr
Type
802.15.4/Zigbeer
Specifications of EM250-DEV
Frequency
2.4GHz
For Use With/related Products
EM250
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
636-1002
- Current page: 45 of 117
- Download datasheet (2Mb)
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
45
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