SCI Control Registers
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SPNU563A–March 2018
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Serial Communication Interface (SCI) Module
30.7.20 SCI Pin I/O Control Register 7 (SCIPIO7)
Figure 30-29 and Table 30-30 illustrate this register.
Figure 30-29. SCI Pin I/O Control Register 7 (SCIPIO7) [offset = 58h]
31 8
Reserved
R-0
7 3 2 1 0
Reserved TX PD RX PD Reserved
R-0 R/W-n R/W-n R/W-n
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset, Refer to the Terminal Functions in the device datasheet for default pin
settings.
Table 30-30. SCI Pin I/O Control Register 7 (SCIPIO7) Field Descriptions
Bit Field Value Description
31-3 Reserved 0 Reads return 0. Writes have no effect.
2 TX PD Transmit pin pull control disable. This bit disables pull control capability on the input pin SCITX.
0 Pull control on the SCITX pin is enabled.
1 Pull control on the SCITX pin is disabled.
1 RX PD Receive pin pull control disable. This bit disables pull control capability on the input pin SCIRX.
0 Pull control on the SCIRX pin is enabled.
1 Pull control on the SCIRX pin is disabled.
0 Reserved 0 Writes have no effect.
30.7.21 SCI Pin I/O Control Register 8 (SCIPIO8)
Figure 30-30 and Table 30-31 illustrate this register.
Figure 30-30. SCI Pin I/O Control Register 8 (SCIPIO8) [offset = 5Ch]
31 8
Reserved
R-0
7 3 2 1 0
Reserved TX PSL RX PSL Reserved
R-0 R/W-n R/W-n R/W-n
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset, Refer to the Terminal Functions in the device datasheet for default pin
settings.
Table 30-31. SCI Pin I/O Control Register 8 (SCIPIO8) Field Descriptions
Bit Field Value Description
31-3 Reserved 0 Reads return 0. Writes have no effect.
2 TX PSL TX pin pull select. This bit selects pull type in the input pin SCITX.
0 The SCITX pin is a pull down.
1 The SCITX pin is a pull up.
1 RX PSL RX pin pull select. This bit selects pull type in the input pin SCIRX.
0 The SCIRX pin is a pull down.
1 The SCIRX pin is a pull up.
0 Reserved 0 Writes have no effect.
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