mc68hc711k4 Freescale Semiconductor, Inc, mc68hc711k4 Datasheet - Page 179

• Manufacturer Part Number: mc68hc711k4
• Description: Hcmos Microcontroller Unit
• Manufacturer: Freescale Semiconductor, Inc

8.6.5 System Configuration Options 2
M68HC11K Family
MOTOROLA
Address: $0038
1. Not available on M68HC11K devices
LSBF — Least Significant Bit First Enable Bit
SPR2 — SPI Clock Rate Select Bit
Reset:
Read:
Write:
Figure 8-7. System Configuration Options 2 Register (OPT2)
Setting LSBF causes data to be transmitted LSB first (the default is
MSB first). LSBF does not affect bit positions in the data register;
reads and writes always have MSB in bit 7.
SPR2 adds a divide-by-4 prescaler to the SPI clock chain. With the
two bits in the SPCR, this specifies the SPI clock rate. See
Freescale Semiconductor, Inc.
For More Information On This Product,
LIRDV
Bit 7
0
Serial Peripheral Interface (SPI)
Go to: www.freescale.com
CWOM
6
0
STRCH
5
0
(1)
IRVNE
—
4
LSBF
3
0
Serial Peripheral Interface (SPI)
SPR2
2
0
XDV1
1
0
Technical Data
SPI Registers
Table
XDV0
Bit 0
0
8-1.
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