MC68HC912BD32CFU10 FREESCALE [Freescale Semiconductor, Inc], MC68HC912BD32CFU10 Datasheet - Page 151

• Manufacturer Part Number: MC68HC912BD32CFU10
• Description: Advance Information
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

SC0BDH — SCI Baud Rate Control Register
SC0BDL — SCI Baud Rate Control Register
5-sint
RESET:
RESET:
SBR7
BTST
Bit 7
Bit 7
NOTE:
0
0
SBR6
BSPL
6
0
6
0
The baud rate generator is disabled until the TE or RE bit in SC0CR2
register is set for the first time after reset, and/or the baud rate generator
is disabled when SBR[12:0] = 0.
BTST — Baud Register Test
BSPL — Baud Rate Counter Split
BRLD — Baud Rate Reload
SC0BDH and SC0BDL are considered together as a 16-bit baud rate
control register.
Read any time. Write SBR[12:0] anytime. Low order byte must be
written for change to take effect. Write SBR[15:13] only in special
modes. The value in SBR[12:0] determines the baud rate of the SCI.
The desired baud rate is determined by the following formula:
which is equivalent to:
BR is the value written to bits SBR[12:0] to establish baud rate.
Reserved for test function
Reserved for test function
Reserved for test function
Freescale Semiconductor, Inc.
For More Information On This Product,
BRLD
SBR5
5
0
5
0
Go to: www.freescale.com
SBR12
SBR4
Serial Interface
4
0
4
0
SBR11
SBR3
SCI Baud Rate
BR
3
0
3
0
=
----------------------------------------------- -
16 SCI Baud Rate
SBR10
MCLK
SBR2
=
2
0
2
1
------------------- -
16 BR
MCLK
Serial Communication Interface (SCI)
SBR9
SBR1
1
0
1
0
MC68HC912BD32 Rev 1.0
SBR8
SBR0
Bit 0
Bit 0
0
0
Serial Interface
$00C1
$00C0
High
Low