MC908AZ60ACFUER Datasheet, PDF (202/414 Pages) Freescale Semiconductor, Inc – To provide the most up-to-date information, the revision of our documents on the World Wide Web will be the most current. Your printed copy may be an earlier revision. To verify you have the latest information available, refer to:

Serial Communications Interface (SCI)
Table 18-10. SCI Baud Rate Selection
SCR[2:1:0]
000
001
010
011
100
101
110
111
Baud Rate Divisor (BD)
1
2
4
8
16
32
64
128
Use the following formula to calculate the SCI baud rate:
Baud rate = _{6----4----f-×}-C---P--r--y-D--s---t-_×-a---lB-----D---
where:
f_Crystal = crystal frequency
PD = prescaler divisor
BD = baud rate divisor
Table 18-11 shows the SCI baud rates that can be generated with a 4.9152-MHz crystal.
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
202
Freescale Semiconductor