mc68hc11c0 Freescale Semiconductor, Inc, mc68hc11c0 Datasheet - Page 63

• Manufacturer Part Number: mc68hc11c0
• Description: 8-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

BAUD — Baud Rate Control Register
TCLR — Clear Baud Rate Counters
SCP[1:0] — SCI Baud Rate Prescaler Selects
MC68HC11C0
MC68HC11C0TS/D
RESET:
TCLR can only be set in test modes.
Shaded boxes contain the prescaler rates used in the following table. Refer to the SCI Baud Rate Clock
Diagram.
EXTAL
XTAL
1 = Clear baud rate counter chain for testing purposes.
0 = Normal SCI operation
TCLR
Bit 7
0
CLOCK GENERATOR
OSCILLATOR
—
AND
6
0
( 4)
Freescale Semiconductor, Inc.
Figure 13 SCI Baud Generator Circuit Diagram
For More Information On This Product,
SCP1
E
AS
5
0
Go to: www.freescale.com
SCP0
4
0
2
2
2
2
2
2
2
0:0
RCKB
SCR[2:0]
3
0
0:0:0
0:0:1
0:1:0
0:1:1
1:0:0
1:0:1
1:1:0
1:1:1
3
0:1
SCR2
U
2
INTERNAL BUS CLOCK (PH2)
4
BAUD RATE
BAUD RATE
TRANSMIT
SCR1
RECEIVE
1:0
(1X)
(16X)
SCI
U
1
SCI
16
13
SCR0
Bit 0
$002B
U
1:1
SCP[1:0]
SCI BAUD GENERATOR
MOTOROLA
63