MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 371

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

17.7.7 SCI Pullup and Reduced Drive Register
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA
NOTE:
Address: SCI1 — 0x00cc_0008
Serial Communications Interface Modules (SCI1 and SCI2)
Figure 17-10. SCI Pullup and Reduced Drive Register (SCIPURD)
T[7:0] — Transmit Bits [7:0]
If the value of T8 is the same as in the previous transmission, T8 does
not have to be rewritten. The same value is transmitted until T8 is
rewritten.
When using the 8-bit data format, only SCIDRL needs to be accessed.
When using 8-bit write instructions to transmit 9-bit data, write first to
SCIDRH, then to SCIDRL.
Reset:
Write: Anytime
SCISDOZ — SCI Stop in Doze Mode Bit
RSVD[5:1] — Reserved
RDPSCI — Reduced Drive Bit
Read:
Write:
The T[7:0] bits are transmit bits [7:0] when using the 9-bit or 8-bit data
format. Reset clears T[7:0].
The SCISDOZ bit disables the SCI in doze mode.
Writing to these read/write bits updates their values but has no effect
on functionality.
This read/write bit controls the drive capability of TXD and RXD.
Freescale Semiconductor, Inc.
For More Information On This Product,
1 = SCI disabled in doze mode
0 = SCI enabled in doze mode
1 = Reduced TXD and RXD pin drive
0 = Full TXD and RXD pin drive
SCI2 — 0x00cd_0008
SCISDOZ
Bit 7
0
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= Writes have no effect and the access terminates without a transfer error exception.
6
0
0
Serial Communications Interface Modules (SCI1 and SCI2)
RSVD5
5
0
RDPSCI
4
0
3
0
0
Memory Map and Registers
2
0
0
Advance Information
RSVD1
1
0
PUPSCI
Bit 0
0
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