Datasheet

www.ti.com I2C Control Registers
30.6.24 I2C Pull Disable Register (I2CPDIS)
Values in the I2CPDIS register enable or disable the pull control capability of the pins. A 0 in the I2CPDIS
register enables the pull function of the corresponding pin, while a 1 disables the pull function. Figure 30-
37 and Table 30-33 describe this register.
Figure 30-37. 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 30-33. I2C Pull Disable Register (I2CPDIS) Field Descriptions
Bit Field Value Description
15-2 Reserved 0 Read returns 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.
30.6.25 I2C Pull Select Register (I2CPSEL)
Values in the I2CPSEL register select the pull up or pull down functions of the corresponding pins. A 0 in
the I2CPSEL register enables the pull down function of the corresponding pin, while a 1 enables the pull
up function of the corresponding pin. Figure 30-38 and Table 30-34 describe this register.
Figure 30-38. 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 30-34. I2C Pull Select Register (I2CPSEL) Field Descriptions
Bit Field Value Description
15-2 Reserved 0 Read returns 0. Writes have no effect.
1 SDAPSEL SDA pull select
0 The pull down function is enabled.
1 The pull up function is enabled.
0 SCLPSEL SCL pull select
0 The pull down function is enabled.
1 The pull up function is enabled.
1521
SPNU562–May 2014 Inter-Integrated Circuit (I2C) Module
Submit Documentation Feedback
Copyright © 2014, Texas Instruments Incorporated