mc68hc916y3 Freescale Semiconductor, Inc, mc68hc916y3 Datasheet - Page 443

• Manufacturer Part Number: mc68hc916y3
• Description: Mc68hc16y3 16 Bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

MPAR — MCCI Pin Assignment Register
ILSPI[2:0]— Interrupt Level for SPI
Bits [10:8] — Not Implemented
D.8.6 MCCI Pin Assignment Register
Bits [15:8], [7:4], 2 — Not Implemented
MC68HC16Y3/916Y3
USER’S MANUAL
15
0
RESET:
ILSPI[2:0] determine the interrupt request levels of SPI interrupts. Program this field
to a value from $0 (interrupts disabled) through $7 (highest priority). If the interrupt-
request level programmed in this field matches the interrupt-request level
programmed for one of the SCI interfaces and both request an interrupt simultaneous-
ly, the SPI is given priority.
The MPAR determines which of the SPI pins, with the exception of the SCK pin, are
actually used by the SPI submodule, and which pins are available for general-purpose
I/O. The state of SCK is determined by the SPI enable bit in SPCR1. Clearing a bit in
MPAR assigns the corresponding pin to general purpose I/O; setting a bit assigns the
pin to the SPI. Refer to Table D-42.
14
0
13
0
12
0
NOTES:
1. MPA[7:4], MPA2 are not implemented.
MPAR Field
Freescale Semiconductor, Inc.
11
0
Table D-42 MPAR Pin Assignments
For More Information On This Product,
MPA0
MPA1
MPA3
—
—
—
—
—
1
1
1
1
1
10
0
NOT USED
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9
0
MPAR Bit
8
0
—
—
—
—
—
0
1
0
1
0
1
7
6
Pin Function
5
PMC0
PMC1
PMC2
PMC3
PMC4
RXDB
PMC5
PMC6
RXDA
PMC7
MISO
MOSI
TXDB
TXDA
SCK
SS
4
MPA3
3
0
USED
NOT
2
$YFFC08
MOTOROLA
MPA1
1
0
MPA0
D-65
0
0