MMC2107 Datasheet, PDF (345/618 Pages) –

Freescale Semiconductor, Inc.
Serial Communications Interface Modules (SCI1 and SCI2)
Memory Map and Registers
16.7.6 SCI Data Registers
Address: SCI1 — 0x00cc_0006
SCI2 — 0x00cd_0006
Bit 7
6
5
4
3
2
1
Bit 0
Read: R8
0
0
0
0
0
0
T8
Write:
Reset: 0
0
0
0
0
0
0
0
= Writes have no effect and the access terminates without a transfer error exception.
Figure 16-8. SCI Data Register High (SCIDRH)
Address: SCI1 — 0x00cc_0007
SCI2 — 0x00cd_0007
Bit 7
6
5
4
3
2
1
Bit 0
Read: R7
R6
R5
R4
R3
R2
R1
R0
Write: T7
T6
T5
T4
T3
T2
T1
T0
Reset: 0
0
0
0
0
0
0
0
Figure 16-9. SCI Data Register Low (SCIDRL)
Read: Anytime
Write: Anytime; writing to R8 has no effect
R8 — Receive Bit 8
The R8 bit is the ninth received data bit when using the 9-bit data
format (M = 1). Reset clears R8.
T8 — Transmit Bit 8
The T8 bit is the ninth transmitted data bit when using the 9-bit data
format (M = 1). Reset clears T8.
R[7:0] — Receive Bits [7:0]
The R[7:0] bits are receive bits [7:0] when using the 9-bit or 8-bit data
format. Reset clears R[7:0].
T[7:0] — Transmit Bits [7:0]
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].
MMC2107 – Rev. 2.0
MOTOROLA
Serial Communications Interface Modules (SCI1 and SCI2)
For More Information On This Product,
Go to: www.freescale.com
Technical Data
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