MC68HC908AZ32ACFU MOTOROLA [Motorola, Inc], MC68HC908AZ32ACFU Datasheet - Page 243
MC68HC908AZ32ACFU
Manufacturer Part Number
MC68HC908AZ32ACFU
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC908AZ32ACFU.pdf
(468 pages)
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16.9.6 SCI Data Register
16.9.7 SCI Baud Rate Register
68HC908AZ32A — Rev 0.0
MOTOROLA
NOTE:
Address:
Address:
The SCI data register is the buffer between the internal data bus and the
receive and transmit shift registers. Reset has no effect on data in the
SCI data register.
R7/T7:R0/T0 — Receive/Transmit Data Bits
Do not use read-modify-write instructions on the SCI data register.
The baud rate register selects the baud rate for both the receiver and the
transmitter.
Reset:
Reset:
Read:
Read:
Write:
Write:
Freescale Semiconductor, Inc.
Reading address $0018 accesses the read-only received data bits,
R7:R0. Writing to address $0018 writes the data to be transmitted,
T7:T0. Reset has no effect on the SCI data register.
For More Information On This Product,
Serial Communications Interface (SCI)
$0018
$0019
Bit 7
Bit 7
R7
T7
0
0
Figure 16-18. SCI Baud Rate Register (SCBR)
Go to: www.freescale.com
Figure 16-17. SCI Data Register (SCDR)
= Unimplemented
R6
T6
6
6
0
0
SCP1
R5
T5
5
5
0
Unaffected by Reset
SCP0
R4
T4
R
4
4
0
Serial Communications Interface (SCI)
= Reserved
R3
T3
R
3
3
0
SCR2
R2
T2
2
2
0
Advance Information
SCR1
R1
T1
1
1
0
I/O Registers
SCR0
Bit 0
Bit 0
R0
T0
0
243
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