Iic-Bus Interface - Samsung S5PV210 Hardware Design Manual

S5PV210_HARDWARE DESING GUIDE REV 1.0

12. IIC-BUS INTERFACE

IIC Bus interface has 2 signals out which are Xi2cSCL and Xi2cSDA. Generally, Each signal need to be
pulled up by 1Kohm resistor to VDD_EXT0(Xi2cSCL0, Xi2cSDA0) or VDD_EXT1(Xi2cSCL1/2, Xi2cSDA1/2) . But this
resistor value should be changed by signal bus loading
use internally for HDMI DDC control. Channel 0 and 2 can be used general IIC port. But When you use HDM DDC,
You should not use Channel 1 in general IIC,
12.1. Pin Description
Signal I/O
Xi2cSCL0/1/2 IO
Xi2cSDA0/1/2 IO
Description
Bus clock
Bus data
capacitance. S5PV210 has 3 IIC control block, Channel 1 can
- 1Kohm external pull-up
- Xi2C CH1 is used for HDMI
Comment
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