mcf51ac256a Freescale Semiconductor, Inc, mcf51ac256a Datasheet - Page 298

• Manufacturer Part Number: mcf51ac256a
• Description: Mcf51ac Flexis
• Manufacturer: Freescale Semiconductor, Inc

Interrupt Controller (CF1_INTC)
13.3.1
The INTC_FRC register allows software to generate a unique interrupt for each possible level at the lowest
priority within the level for functional or debug purposes. These interrupts may be self-scheduled by
setting one or more of the bits in the INTC_FRC register. In some cases, the handling of a normal interrupt
request may cause critical processing by the service routine along with the scheduling (using the
INTC_FRC register) of a lower priority level interrupt request to be processed at a later time for
less-critical task handling.
The INTC_FRC register may be modified directly using a read-modify-write sequence or through a simple
write operation using the set/clear force interrupt registers (INTC_SFRC, INTC_CFRC).
13-8
Address
Offset
0x1B
0x1E
0x2C
0x3C
0x10
0x18
0x19
0x1F
0x20
0x24
0x28
0x30
0x34
0x38
INTC_LVL1IACK
INTC_LVL2IACK
INTC_LVL3IACK
INTC_LVL4IACK
INTC_LVL5IACK
INTC_LVL6IACK
INTC_LVL7IACK
Register Name
INTC_SWIACK
INTC_PL6P7
INTC_PL6P6
Force Interrupt Register (INTC_FRC)
INTC_SFRC
INTC_CFRC
INTC_WCR
INTC_FRC
Take special notice of the bit numbers within this register, 39–32. This is for
compatibility with other ColdFire interrupt controllers.
MCF51AC256 ColdFire Integrated Microcontroller Reference Manual, Rev. 5
CF1_INTC Programmable Level 6, Priority 7
CF1_INTC Programmable Level 6, Priority 6
CF1_INTC Software Interrupt Acknowledge
CF1_INTC Level 1 Interrupt Acknowledge
CF1_INTC Level 2 Interrupt Acknowledge
CF1_INTC Level 3 Interrupt Acknowledge
CF1_INTC Level 4 Interrupt Acknowledge
CF1_INTC Level 5 Interrupt Acknowledge
CF1_INTC Level 6 Interrupt Acknowledge
CF1_INTC Level 7 Interrupt Acknowledge
CF1_INTC Clear Interrupt Force Register
CF1_INTC Set Interrupt Force Register
CF1_INTC Wakeup Control Register
CF1_INTC Force Interrupt Register
Table 13-3. CF1_INTC Memory Map
Register Description
NOTE
Width
(bits)
8
8
8
8
8
8
8
8
8
8
8
8
8
8
Access
Read
Read
Read
Read
Read
Read
Read
Read
Write
Write
R/W
R/W
R/W
R/W
Reset Value
0x00
0x00
0x00
0x80
0x00
0x18
0x18
0x18
0x18
0x18
0x18
0x18
Freescale Semiconductor
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