s908az32ag2cfue Freescale Semiconductor, Inc, s908az32ag2cfue Datasheet - Page 163

• Manufacturer Part Number: s908az32ag2cfue
• Description: M68hc08 Microcontrollers 8-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

SCR2 – SCR0 — SCI Baud Rate Select Bits
Table 16-11
Freescale Semiconductor
These read/write bits select the SCI baud rate divisor as shown in
SCR2–SCR0.
Use the following formula to calculate the SCI baud rate:
where:
f
PD = prescaler divisor
BD = baud rate divisor
Crystal
shows the SCI baud rates that can be generated with a 4.9152-MHz crystal.
= crystal frequency
Baud rate
SCR[2:1:0]
000
001
010
011
100
101
110
111
Table 16-10. SCI Baud Rate Selection
=
MC68HC908AZ32A Data Sheet, Rev. 2
----------------------------------- -
64
f Crystal
×
PD BD
×
Baud Rate Divisor (BD)
128
16
32
64
1
2
4
8
Table
16-10. Reset clears
I/O Registers
163