MC68HC912D60 Motorola, MC68HC912D60 Datasheet - Page 297

• Manufacturer Part Number: MC68HC912D60
• Description: Microcontrollers
• Manufacturer: Motorola

SC0CR1 — MI Bus Control Register 1
MC68HC912D60A — Rev 3.0
MOTOROLA
RESET:
Bit 7
NOTE:
—
0
WOMS
6
0
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 clock rate of the MI Bus. The
desired baud rate is determined by the following formula:
BR is the value written to bits SBR[12:0] to establish baud rate.
The baud rate generator is disabled until 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 — Reserved for test function
BSPL — Reserved for test function
BRLD — Reserved for test function
Read or write anytime.
WOMS — Wired-Or Mode for Serial Pins
This bit controls the two pins (TxD0 and RxD0) associated with the
SC0 section.
Freescale Semiconductor, Inc.
For More Information On This Product,
0 = Pins operate in a normal mode with both high and low drive
1 = Each pin operates in an open drain fashion if that pin is
—
5
0
capability.
declared as an output.
Go to: www.freescale.com
Motorola Interconnect Bus
—
4
0
MI BUS Clock Rate
—
3
0
—
2
0
=
------------------- -
16 BR
MCLK
×
—
1
0
Motorola Interconnect Bus
SCI0/MI Bus registers
Bit 0
PT
0
Technical Data
$00C2
297