Fast i2c, 8 fast i2c, Jida/external i2c speed – Kontron COMe-cSP2 User Manual
Page 56: Jili i2c speed
COMe-cSP2
/ Special Features
51
5.8 Fast I2C
The COMe-cSP2 integrates two configurable I2C buses. The external I2C provided via US15W GPIOs on COM Express®
Connector Pin B33/B34 and the JILI (LVDS) I2C from US15W SCH is available on COM Express® connector pin
A83/A84. See the
for reserved addresses. The I2C interface offers full MultiMaster and Clock
Stretching support. Fast I2C clock speed depends on the CPU performance and differs between ATOM™ Z510 and
ATOM™ Z530 modules. See the tables below for measured values on COMe-cSP2.
JIDA/external I2C speed
Setup
ATOM™ Z510
ATOM™ Z530
Extra high
not supported
not supported
Very high
150 kHz
210 kHz
High
80 kHz
110 kHz
Medium
40 kHz
60 kHz
Slow
11 kHz
16 kHz
Very slow
1.5 kHz
2 kHz
Ultra slow
0.8 kHz
1 kHz
JILI I2C speed
Setup
ATOM™ Z510
ATOM™ Z530
Extra high
not supported
not supported
Very high
90 kHz
125 kHz
High
36 kHz
50 kHz
Medium
18 kHz
25 kHz
Slow
2.8 kHz
4 kHz
Very slow
1.0 kHz
1.3 kHz
Ultra slow
not supported
not supported