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SCI/LIN Control Registers
1705
SPNU563A–March 2018
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Serial Communication Interface (SCI)/ Local Interconnect Network (LIN)
Module
29.7.20 SCI Pin I/O Control Register 6 (SCIPIO6)
Figure 29-49 and Table 29-37 illustrate this register.
Figure 29-49. SCI Pin I/O Control Register 6 (SCIPIO6) (offset = 54h)
31 8
Reserved
R-0
3 2 1 0
Reserved TX PDR RX PDR Reserved
R-0 R/W-0 R/W-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 29-37. SCI Pin I/O Control Register 6 (SCIPIO6) Field Descriptions
Bit Field Value Description
31-3 Reserved 0 Reads return 0. Writes have no effect.
2 TX PDR Transmit pin open drain enable. This bit is effective in LIN or SCI mode. This bit enables open-drain
capability in the output pin LINTX, if the following conditions are met:
• TX FUNC = 0 (LINTX pin is a general-purpose I/O.)
• TX DIR = 1 (LINTX pin is a general-purpose output.)
0 Open-drain functionality is disabled; the output voltage is V
OL
or lower if TXOUT = 0, and is V
OH
or
higher if TXOUT = 1.
1 Open-drain functionality is enabled; the output voltage is V
OL
or lower if TXOUT = 0, and is high-
impedance if TXOUT = 1.
1 RX PDR Receive pin open drain enable. This bit is effective in LIN or SCI mode. This bit enables open-drain
capability in the output pin LINRX, if the following conditions are met:
• RX FUNC = 0 (LINRX pin is a general-purpose I/O.)
• RX DIR = 1 (LINRX pin is a general-purpose output.)
0 Open-drain functionality is disabled; the output voltage is V
OL
or lower if RXOUT = 0, and is V
OH
or
higher if RXOUT = 1.
1 Open-drain functionality is enabled; the output voltage is V
OL
or lower if RXOUT = 0, and is high-
impedance if RXOUT = 1.
0 Reserved 0 Writes have no effect.
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