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DI20 数据表(PDF) 96 Page - Microchip Technology

部件名 DI20
功能描述  16-Bit General Purpose Microcontrollers with 256-Kbyte Flash and 16-Kbyte RAM in Low Pin Count Packages
PDF  416 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

DI20 数据表(HTML) 96 Page - Microchip Technology

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DS30010118D-page 96
 2016-2018 Microchip Technology Inc.
REGISTER 8-6:
INTTREG: INTERRUPT CONTROL AND STATUS REGISTER
R-0
U-0
R/W-0
U-0
R-0
R-0
R-0
R-0
CPUIRQ
—VHOLD
—
ILR3
ILR2
ILR1
ILR0
bit 15
bit 8
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
VECNUM7
VECNUM6
VECNUM5
VECNUM4
VECNUM3
VECNUM2
VECNUM1
VECNUM0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 15
CPUIRQ: Interrupt Request from Interrupt Controller to CPU bit
1 = An interrupt request has occurred but has not yet been Acknowledged by the CPU; this happens
when the CPU priority is higher than the interrupt priority
0 = No interrupt request is unacknowledged
bit 14
Unimplemented: Read as ‘0’
bit 13
VHOLD: Vector Number Capture Configuration bit
1 = The VECNUMx bits contain the value of the highest priority pending interrupt
0 = The VECNUMx bits contain the value of the last Acknowledged interrupt (i.e., the last interrupt
that has occurred with higher priority than the CPU, even if other interrupts are pending)
bit 12
Unimplemented: Read as ‘0’
bit 11-8
ILR<3:0>: New CPU Interrupt Priority Level bits
1111 = CPU Interrupt Priority Level is 15
•
•
•
0001 = CPU Interrupt Priority Level is 1
0000 = CPU Interrupt Priority Level is 0
bit 7-0
VECNUM<7:0>: Vector Number of Pending Interrupt bits
11111111 = 255, Reserved; do not use
•
•
•
00001001 = 9, IC1 – Input Capture 1
00001000 = 8, INT0 – External Interrupt 0
00000111 = 7, Reserved; do not use
00000110 = 6, Generic soft error trap
00000101 = 5, Reserved; do not use
00000100 = 4, Math error trap
00000011 = 3, Stack error trap
00000010 = 2, Generic hard trap
00000001 = 1, Address error trap
00000000 = 0, Oscillator fail trap



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