Philips LPC2129 - Table 110: I2 C Clock Rate Selections for VPB Clock Divider = 2; Table 111: I2 C Clock Rate Selections for VPB Clock Divider = 4

I2C Interface 176 May 03, 2004
Philips Semiconductors Preliminary User Manual
LPC2119/2129/2194/2292/2294ARM-based Microcontroller
Table 111: I2C Clock Rate Selections for VPB Clock Divider = 2
I2SCLL+
I2SCLH
Bit Frequency (kHz) At f
CCLK
(MHz) & VPB Clock Divider = 2
16 20 40 60
8- - - -
10----
25 320.0 400.0 - -
50 160.0 200.0 400.0 -
75 106.667 133.333 266.667 400.0
100 80.0 100.0 200.0 300.0
160 50.0 62.5 125.0 187.5
200 40.0 50.0 100.0 150.0
320 25.0 31.25 62.5 93.75
400 20.0 25.0 50.0 75.0
510 15.686 19.608 39.216 58.824
800 10.0 12.5 25.0 37.5
1280 6.25 7.813 15.625 23.438
Table 112: I2C Clock Rate Selections for VPB Clock Divider = 4
I2SCLL+
I2SCLH
Bit Frequency (kHz) At f
CCLK
(MHz) & VPB Clock Divider = 4
16 20 40 60
8500.0 - - -
10 400.0 - - -
25 160.0 200.0 400.0 -
50 80.0 100.0 200.0 300.0
75 53.333 66.667 133.333 200.0
100 40.0 50.0 100.0 150.0
160 25.0 31.25 62.5 93.75
200 20.0 25.0 50.0 75.0
320 12.5 15.625 31.25 46.875
400 10.0 12.5 25.0 37.5
510 7.843 9.804 19.608 29.412
800 5.0 6.25 12.5 18.75
1280 3.125 3.906 7.813 11.719