MMC2107 Datasheet, PDF (348/618 Pages) –

Freescale Semiconductor, Inc.
Serial Communications Interface Modules (SCI1 and SCI2)
16.7.9 SCI Data Direction Register
Address: SCI1 — 0x00cc_000a
SCI2 — 0x00cd_000a
Bit 7
6
5
4
3
2
1
Bit 0
Read:
RSVD7
Write:
RSVD6
RSVD5
RSVD4
RSVD3
RSVD2 DDRSC1 DDRSC0
Reset: 0
0
0
0
0
0
0
0
Figure 16-12. SCI Data Direction Register (SCIDDR)
Read: Anytime
Write: Anytime
RSVD[7:2] — Reserved
Writing to these read/write bits updates their values but has no effect
on functionality.
DDRSC[1:0] — SCIPORT Data Direction Bits
These bits control the data direction of the SCIPORT pins. Reset
clears DDRSC[1:0].
1 = Corresponding pin configured as output
0 = Corresponding pin configured as input
NOTE:
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.
Technical Data
348
Serial Communications Interface Modules (SCI1 and SCI2)
For More Information On This Product,
Go to: www.freescale.com
MMC2107 – Rev. 2.0
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