Cirrus Logic CS2200-CP - Manual (Page 8)

CS2200-CP
8 DS759F2
CONTROL PORT SWITCHING CHARACTERISTICS- I²C FORMAT
Inputs: Logic 0 = GND; Logic 1 = VD; C
L
= 20 pF.
Notes: 8. Data must be held for sufficient time to bridge the transition time, t
f
, of SCL.
Parameter Symbol Min Max Unit
SCL Clock Frequency f
scl
- 100 kHz
Bus Free-Time Between Transmissions t
buf
4.7 - µs
Start Condition Hold Time (prior to first clock pulse) t
hdst
4.0 - µs
Clock Low Time t
low
4.7 - µs
Clock High Time t
high
4.0 - µs
Setup Time for Repeated Start Condition t
sust
4.7 - µs
SDA Hold Time from SCL Falling ( Note 8 ) t
hdd
0 - µs
SDA Setup Time to SCL Rising t
sud
250 - ns
Rise Time of SCL and SDA t
r
- 1 µs
Fall Time SCL and SDA t
f
- 300 ns
Setup Time for Stop Condition t
susp
4.7 - µs
Acknowledge Delay from SCL Falling t
ack
300 1000 ns
Delay from Supply Voltage Stable to Control Port Ready t
dpor
100 - µs
t
buf t
hdst
t
hdst
t
low
t r
t f
t
hdd
t
high
t sud t sust
t susp
Stop Start
Start Stop
Repeated
SDA
SCL
VD
t
dpor
Figure 2. Control Port Timing - I²C Format