參數(shù)資料
型號： μPDPD30101
廠商： NEC Corp.
英文描述： 64-Bit Micro[rocessor(64位微處理器)
中文描述： 64位微[rocessor（64位微處理器）
文件頁數(shù)： 45/97頁
文件大?。?/td> 409K
代理商： ΜPDPD30101
μ
PD30101
44
9. ICU (INTERRUPT CONTROL UNIT)
9.1 General
The ICU receives an interrupt request signal from each peripheral unit and generates an interrupt request signal
(Int0, Int1, or NMI) to the CPU core.
Table 9-1. ICU Registers
Symbol
Function
SYSINTREG
System interrupt register
PIUINTREG
PIU interrupt register
ADUINTREG
AIU interrupt register
KIUINTREG
KIU interrupt register
GIUINTREG
GIU interrupt register
SIUINTREG
SIU interrupt register
MSYSINTREG
System interrupt mask register
MPIUINTREG
PIU interrupt mask register
MADUINTREG
AIU interrupt mask register
MKIUINTREG
KIU interrupt mask register
MGIUINTREG
GIU interrupt mask register
MSIUINTREG
SIU interrupt mask register
NMIREG
Battery interrupt select register
SOFTINTREG
Software interrupt register
Table 9-2. Correspondence of Interrupts of ICU and CPU Core
SYSINTREG Bit Position
Interrupt Source
Interrupt Request Signal
13
PIU (in Suspend mode)
Int0
12
KIU (in Suspend mode)
11
Software (by SOFTINTREG)
10
Bus error
9
SIU
6
AIU
8
GIU
7
KIU
5
PIU
4
PCMCIA
3
Elapsed Time timer
2
RTClong timer
Int1
1
Power-ON switch
Int0
0
Battery
NMI/Int0 (selected by NMIREG)
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