mc68hc908as60 Freescale Semiconductor, Inc, mc68hc908as60 Datasheet - Page 256

• Manufacturer Part Number: mc68hc908as60
• Description: Mc68hc908as60 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Serial Communications Interface (SCI)
Technical Data
SCR2 – SCR0 — SCI Baud Rate Select Bits
Use this formula to calculate the SCI baud rate:
where:
Table 17-8
4.9152-MHz crystal.
These read/write bits select the SCI baud rate divisor as shown in
Table
Freescale Semiconductor, Inc.
f
PD = prescaler divisor
BD = baud rate divisor
Crystal
For More Information On This Product,
Serial Communications Interface (SCI)
Baud rate
17-7. Reset clears SCR2–SCR0.
= crystal frequency
SCR[2:1:0]
shows the SCI baud rates that can be generated with a
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000
001
010
100
101
011
110
111
Table 17-7. SCI Baud Rate Selection
=
----------------------------------- -
64 PD
f
Crystal
BD
Baud Rate Divisor (BD)
128
16
32
64
1
2
4
8
MC68HC908AS60 — Rev. 1.0