I2C-bus specification and user manual v5.0
5. Bus speeds
• Bidirectional bus:
– Standard-mode (Sm), with a bit rate up to 100 kbit/s
– Fast-mode (Fm), with a bit rate up to 400 kbit/s
– Fast-mode Plus (Fm+), with a bit rate up to 1 Mbit/s
– High-speed mode (Hs-mode), with a bit rate up to 3.4 Mbit/s.
• Unidirectional bus:
– Ultra Fast-mode (UFm), with a bit rate up to 5 Mbit/s
I2C-bus specification and user manual v5.0
5. Bus speeds
• Bidirectional bus:
– Standard-mode (Sm), with a bit rate up to 100 kbit/s
– Fast-mode (Fm), with a bit rate up to 400 kbit/s
– Fast-mode Plus (Fm+), with a bit rate up to 1 Mbit/s
– High-speed mode (Hs-mode), with a bit rate up to 3.4 Mbit/s.
• Unidirectional bus:
– Ultra Fast-mode (UFm), with a bit rate up to 5 Mbit/s
#7
IIC的速度也就400k左右,如果想提高效率可以选择其它的。
I2C-bus specification and user manual v5.0
5. Bus speeds
• Bidirectional bus:
– Standard-mode (Sm), with a bit rate up to 100 kbit/s
– Fast-mode (Fm), with a bit rate up to 400 kbit/s
– Fast-mode Plus (Fm+), with a bit rate up to 1 Mbit/s
– High-speed mode (Hs-mode), with a bit rate up to 3.4 Mbit/s.
• Unidirectional bus:
– Ultra Fast-mode (UFm), with a bit rate up to 5 Mbit/s