User's Manual

Ehong
®
Professional Bluetooth Solutions Provider page 10 of 18
Table 6: Possible UART Settings
Figure 3： Connection To Host device
6.6. I2C Master/ Slave
The module has 1 I²C master/slave general interface for communication with external
peripherals and sensors.
Symbol
Description
Note
Min
Typ.
Max.
Units
Test
Level
I
2W100K
Run current for TWI at 100 kbps.
380
μA
1
I
2W400K
Run current for TWI at 400 kbps.
400
μA
1
f
2W
Bit rates for TWI.
100
400
kbps
N/A
t
TWI,START
Time from STARTRX/STARTTX
task is given until start condition.
Low power mode.
1
Constant latency
mode.
1
3
1
4.4
μs
1
For more information on how to control the sub power modes, see the Series Reference Manual.
Figure 4： WTI specifications
Parameter
Possible Values
Baud Rate
Minimum
1200 baud (≤2%Error)
9600 baud (≤1%Error)
Maximum
2M baud (≤1%Error)
Parity
None, Odd or Even
Number of Stop Bits
1 or 2
Bits per Byte
8