MC68HC908AB32 MOTOROLA [Motorola, Inc], MC68HC908AB32 Datasheet - Page 276

• Manufacturer Part Number: MC68HC908AB32
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

Serial Communications Interface
Technical Data
276
Use this formula to calculate the SCI baud rate:
where:
This makes the formula:
Table 15-8
4.9152MHz CGMXCLK.
SCI clock source = CGMXCLK
PD = prescaler divisor
BD = baud rate divisor
Freescale Semiconductor, Inc.
(See
Serial Communications Interface Module (SCI)
For More Information On This Product,
9.5.6 Crystal Output Frequency Signal
SCR2, SCR1, and SCR0
shows the SCI baud rates that can be generated with a
Go to: www.freescale.com
baud rate
baud rate
Table 15-7. SCI Baud Rate Selection
000
001
010
011
100
101
110
111
=
=
SCI clock source
-------------------------------------------- -
----------------------------------- -
64 PD BD
CGMXCLK
64 PD BD
Divisor (BD)
Baud Rate
MC68HC908AB32
128
16
32
64
1
2
4
8
(CGMXCLK).)
MOTOROLA
—
Rev. 1.0