參數(shù)資料
型號: ZPSD513B1V
英文描述: Field Programmable Microcontroller Peripherals(可編程邏輯,零功耗,16K位SRAM,40個(gè)可編程I/O,通用PLD有61個(gè)輸入)
中文描述: 現(xiàn)場可編程微控制器外圍設(shè)備(可編程邏輯,零功耗,16K的位的SRAM,40余個(gè)可編程輸入/輸出,通用PLD的有61個(gè)輸入)
文件頁數(shù): 100/142頁
文件大小: 786K
代理商: ZPSD513B1V
ZPSD5XX Famly
7-100
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Sense7
Sense6
Sense5
Sense4
Sense3
Sense2
Sense1
Sense0
Interrupt Operation (Cont.)
Interrupt Edge/Level Select Register
Bits sense 0
...
sense 7 correspond to interrupt 0
...
interrupt 7.
When these bits are set to
1 = LEVEL sensitive
0 = EDGE sensitive (positive edge)
At RESET these bits initialize as 0 i.e., all interrupts come up as Edge sensitive.
Interrupt Read Clear Register
This is a read only register. Reading this register during initialization clears all the pending
edge sensitive interrupts.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
ir 7
ir 6
ir 5
ir 4
ir 3
ir 2
ir 1
ir 0
Interrupt Request Latch Register
Bits ir 0...ir 7 correspond to interrupt 0 ... interrupt 7.
When any of these bits are set by the interrupt controller to a “1”, the corresponding
Interrupt is pending service.
The MCU can read the interrupt request latch which shows the status of all interrupts. The
entire interrupt request latch can be cleared by reading the Interrupt Read Clear Register,
but Level sensitive interrupts cannot be cleared.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
*
*
*
*
*
vect 2
vect 1
vect 0
NOTE:
*
= Reserved for future use, bits set to zero.
Interrupt Priority Status Register
The value of these 3 bits (vect2, vect1 and vect0) indicates the highest priority of the
interrupt to be serviced among multiple interrupts pending. Refer to the table above for
priorities of various interrupts. Reading this register clears the highest pending interrupt.
Interrupt
Controller
(Cont.)
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