Motorola MC68HC908GP32 Technical Data Manual page 277

MC68HC908GP32 MC68HC08GP32
•
MOTOROLA
Freescale Semiconductor, Inc.
Table 18-7. SCI Baud Rate Selection
SCR2, SCR1, and SCR0
000
001
010
011
100
101
110
111
Use this formula to calculate the SCI baud rate:
baud rate
where:
SCI clock source = f
(selected by SCIBDSRC bit in CONFIG2 register)
PD = prescaler divisor
BD = baud rate divisor
Table 18-8 shows the SCI baud rates that can be generated with a
4.9152-MHz bus clock when f
Rev. 6
—
Serial Communications Interface Module (SCI)
For More Information On This Product,
Go to: www.freescale.com
Serial Communications Interface Module (SCI)
Baud Rate Divisor (BD)
SCI clock source
= -------------------------------------------- -
× ×
64 PD BD
or CGMXCLK
BUS
is selected as SCI clock source.
BUS
I/O Registers
1
2
4
8
16
32
64
128
Technical Data
275