mc68hc08az60 Freescale Semiconductor, Inc, mc68hc08az60 Datasheet - Page 208

• Manufacturer Part Number: mc68hc08az60
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

Serial Communications Interface Module (SCI)
SCI Baud Rate
Register
MC68HC08AZ60 — Rev 1.0
208
NOTE:
Address:
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.
SCP1 and SCP0 — SCI Baud Rate Prescaler Bits
Reset:
Read:
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.
These read/write bits select the baud rate prescaler divisor as shown
in
Serial Communications Interface Module (SCI)
For More Information On This Product,
Table
SCP[1:0]
$0019
Bit 7
00
01
10
11
0
9. Reset clears SCP1 and SCP0.
Figure 18. SCI Baud Rate Register (SCBR)
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= Unimplemented
Table 9. SCI Baud Rate Prescaling
6
0
SCP1
5
0
SCP0
R
4
0
Prescaler Divisor (PD)
= Reserved
R
3
0
13
1
3
4
SCR2
2
0
SCR1
1
0
MOTOROLA
SCR0
Bit 0
0
36-sci