User's Manual

I2C Fast-mode (Fm)
Table 4.24. I2C Fast-mode (Fm)
1
Parameter Symbol Test Condition Min Typ Max Unit
SCL clock frequency
2
f
SCL
0 — 400 kHz
SCL clock low time t
LOW
1.3 — — μs
SCL clock high time t
HIGH
0.6 — — μs
SDA set-up time t
SU,DAT
100 — — ns
SDA hold time
3
t
HD,DAT
100 — 900 ns
Repeated START condition
set-up time
t
SU,STA
0.6 — — μs
(Repeated) START condition
hold time
t
HD,STA
0.6 — — μs
STOP condition set-up time t
SU,STO
0.6 — — μs
Bus free time between a
STOP and START condition
t
BUF
1.3 — — μs
Note:
1.
For CLHR set to 1 in the I2Cn_CTRL register
2.
For the minimum HFPERCLK frequency required in Fast-mode, refer to the I2C chapter in the reference manual
3. The maximum SDA hold time (t
HD,DAT
) needs to be met only when the device does not stretch the low time of SCL (t
LOW
)
I2C Fast-mode Plus (Fm+)
Table 4.25. I2C Fast-mode Plus (Fm+)
1
Parameter Symbol Test Condition Min Typ Max Unit
SCL clock frequency
2
f
SCL
0 — 1000 kHz
SCL clock low time t
LOW
0.5 — — μs
SCL clock high time t
HIGH
0.26 — — μs
SDA set-up time t
SU,DAT
50 — — ns
SDA hold time t
HD,DAT
100 — — ns
Repeated START condition
set-up time
t
SU,STA
0.26 — — μs
(Repeated) START condition
hold time
t
HD,STA
0.26 — — μs
STOP condition set-up time t
SU,STO
0.26 — — μs
Bus free time between a
STOP and START condition
t
BUF
0.5 — — μs
Note:
1.
For CLHR set to 0 or 1 in the I2Cn_CTRL register
2.
For the minimum HFPERCLK frequency required in Fast-mode Plus, refer to the I2C chapter in the reference manual
BGM113 Blue Gecko Bluetooth
®
Smart Module Data Sheet
Electrical Specifications
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