MC908JB16DWE Datasheet, PDF (245/332 Pages) Freescale Semiconductor, Inc – Microcontrollers

Serial Communications Interface Module (SCI)
Table 12-7. SCI Baud Rate Selection
SCR2, SCR1, and SCR0
000
001
010
011
100
101
110
111
Baud Rate Divisor (BD)
1
2
4
8
16
32
64
128
Use this formula to calculate the SCI baud rate:
baud rate = ^{S-----C4---8-I---c-}_×--l--o-P--c--D-k-----s_×---o--B-u---Dr--c---e--
where:
SCI clock source = OSCDCLK
PD = prescaler divisor
BD = baud rate divisor
Table 12-8 shows the SCI baud rates that can be generated with a
24MHz OSCDCLK (OSCXCLK=12MHz) as SCI clock source.
MC68HC908JB16 — Rev. 1.1
Freescale Semiconductor
Serial Communications Interface Module (SCI)
Technical Data
245