I2C Control Registers
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SPNU563A–March 2018
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Inter-Integrated Circuit (I2C) Module
31.6.24 I2C Pull Disable Register (I2CPDIS)
Values in the I2CPDIS register enable or disable the pull control capability of the pins. Figure 31-37 and
Table 31-33 describe this register.
Figure 31-37. I2C Pull Disable Register (I2CPDIS) [offset = 64h]
15 2 1 0
Reserved SDAPDIS SCLPDIS
R-0 R/W-1 R/W-1
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 31-33. I2C Pull Disable Register (I2CPDIS) Field Descriptions
Bit Field Value Description
15-2 Reserved 0 Reads return 0. Writes have no effect.
1 SDAPDIS SDA pull disable.
0 The pull function is enabled.
1 The pull function is disabled.
0 SCLPDIS SCL pull disable.
0 The pull function is enabled.
1 The pull function is disabled.
31.6.25 I2C Pull Select Register (I2CPSEL)
Values in the I2CPSEL register select the pull up or pull down functions of the corresponding pins.
Figure 31-38 and Table 31-34 describe this register.
Figure 31-38. I2C Pull Select Register (I2CPSEL) [offset = 68h]
15 2 1 0
Reserved SDAPSEL SCLPSEL
R-0 R/W-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 31-34. I2C Pull Select Register (I2CPSEL) Field Descriptions
Bit Field Value Description
15-2 Reserved 0 Reads return 0. Writes have no effect.
1 SDAPSEL SDA pull select enable.
0 The pull down function is enabled.
1 The pull up function is enabled.
0 SCLPSEL SCL pull select enable.
0 The pull down function is enabled.
1 The pull up function is enabled.
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