MCM_CPO field descriptions
Field
Description
31–3
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
2
CPOWOI
Compute Operation wakeup on interrupt
0
No effect.
1
When set, the CPOREQ is cleared on any interrupt or exception vector fetch.
1
CPOACK
Compute Operation acknowledge
0
Compute operation entry has not completed or compute operation exit has completed.
1
Compute operation entry has completed or compute operation exit has not completed.
0
CPOREQ
Compute Operation request
This bit is auto-cleared by vector fetching if CPOWOI = 1.
0
Request is cleared.
1
Request Compute Operation.
17.3 Functional description
This section describes the functional description of MCM module.
17.3.1 Interrupts
The MCM generates two interrupt requests:
• Non-maskable interrupt
• Normal interrupt
17.3.1.1 Non-maskable interrupt
The MCM's NMI is generated if:
• ISCR[ETBN] is set, when
• The ETB counter is enabled, ETBCC[CNTEN] = 1
• The ETB count expires
• The response to counter expiration is an NMI, MCM_ETBCC[RSPT] = 10
Functional description
KV4x Reference Manual, Rev. 2, 02/2015
292
Preliminary
Freescale Semiconductor, Inc.
Содержание freescale KV4 Series
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