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INTC Application Usage

MAC7200 Microcontroller Family Reference Manual, Rev. 2

Freescale Semiconductor

289

14.6

INTC Application Usage

Please refer to the Interrupt Controller Block Guide for specific usage. In addition, the following special

notes apply:

•

All interrupt source on the MAC72xx, including external sources, must be cleared at the source.

•

The Non Maskable Interrupt (NMI) control registers can be found in the MCM module, not the

INTC module.

•

The interrupt vector number is not the same as the physical interrupt request number. The

relationship is defined as vector_number = 64 + Request#, where Request#=0 to 63.

Table 14-3. INTC MAC71x1 versus MAC72xx Interrupt Source Assignment

Interrupt

Request

MAC71x1

MAC72xx

CRG

—

19–21

PIT Timer Channel 1-3

—

PIT Timer Channel 4 / RTI

—

VREG

UNUSED

CAN_A Message Buffer 1-13,15-32

—

CAN_A Message Buffer 14

—

CAN_A

—

CAN_B Message Buffer 1-13,15-32

—

CAN_B Message Buffer 14

—

CAN_B

—

CAN_C Message Buffer 1-13,15-32

UNUSED

CAN_C Message Buffer 14

UNUSED

CAN_C

UNUSED

CAN_D Message Buffer 1–13,15–32

UNUSED

CAN_D Message Buffer 14

UNUSED

CAN_D

UNUSED

I2C—

SPI_A

—

SPI_B

—

SCI_A

—

SCI_B

—

SCI_C

—

SCI_D

—

44–50

eMIOS Channel 1–8

—

51–58

eMIOS Channel 9–16

UNUSED

ATD_A / ATD_B

ATD_A only

Flash

DSPI_C

PIM

—

IRQ

—

XIRQ

—

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