MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 373

• Manufacturer Part Number: MMC2114
• Description: M CORE Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

17.7.9 SCI Data Direction Register
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA
NOTE:
Serial Communications Interface Modules (SCI1 and SCI2)
Address: SCI1 — 0x00cc_000a
Read: Anytime
Write: Anytime
RSVD[7:2] — Reserved
DDRSC[1:0] — SCIPORT Data Direction Bits
When LOOPS = 0 and TE = RE = 1, the RXD pin is an input and the
TXD pin is an output regardless of the state of the DDRSC1 (TXD) and
DDRSC0 (RXD) bits.
Reset:
Read:
Write:
Writing to these read/write bits updates their values but has no effect
on functionality.
These bits control the data direction of the SCIPORT pins. Reset
clears DDRSC[1:0].
Freescale Semiconductor, Inc.
For More Information On This Product,
1 = Corresponding pin configured as output
0 = Corresponding pin configured as input
Figure 17-12. SCI Data Direction Register (SCIDDR)
SCI2 — 0x00cd_000a
RSVD7
Bit 7
0
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RSVD6
6
0
Serial Communications Interface Modules (SCI1 and SCI2)
RSVD5
5
0
RSVD4
4
0
RSVD3
3
0
Memory Map and Registers
RSVD2
2
0
Advance Information
DDRSC1 DDRSC0
1
0
Bit 0
0
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