参数资料
型号: ST72621K4B1
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP32
封装: 0.400 INCH, LEAD FREE, SHRINK, PLASTIC, DIP-32
文件页数: 62/139页
文件大小: 1264K
代理商: ST72621K4B1
ST7262xxx
29/139
Doc ID 6996 Rev 5
INTERRUPTS (Cont’d)
Table 6. Interrupt Mapping
Table 7. Nested Interrupts Register Map and Reset Values
Source
Block
Description
Register
Label
Priority
Order
Exit
from
HALT
Address
Vector
Reset
Highest
Priority
Lowest
Priority
Yes
FFFEh-FFFFh
TRAP software interrupt
No
FFFCh-FFFDh
0
ICP
FLASH Start programming NMI interrupt
Yes
FFFAh-FFFBh
1
USB
USB End Suspend interrupt
USBISTR
Yes
FFF8h-FFF9h
2
I/O Ports
Port A external interrupts IT[4:1]
ITRFRE1
Yes
FFF6h-FFF7h
3
Port B external interrupts IT[8:5]
ITRFRE1
Yes
FFF4h-FFF5h
4
Port C external interrupts IT[12:9]
ITRFRE2
Yes
FFF2h-FFF3h
5
TBU
Timebase Unit interrupt
TBUCSR
No
FFF0h-FFF1h
6
ART
ART/PWM Timer interrupt
ICCSR
Yes
FFEEh-FFEFh
7
SPI
SPI interrupt vector
SPISR
Yes
FFECh-FFEDh
8
SCI
SCI interrupt vector
SCISR
No
FFEAh-FFEBh
9
USB
USB interrupt vector
USBISTR
No
FFE8h-FFE9h
10
ADC
A/D End of conversion interrupt
ADCCSR
No
FFE6h-FFE7h
Reserved area
FFE0h-FFE5h
Address
(Hex.)
Register
Label
765
4321
0
0032h
ISPR0
Reset Value
Ext. Interrupt Port B
Ext. Interrupt Port A
USB END SUSP
Not Used
I1_3
1
I0_3
1
I1_2
1
I0_2
1
I1_1
1
I0_1
11
1
0033h
ISPR1
Reset Value
SPI
ART
TBU
Ext. Interrupt Port C
I1_7
1
I0_7
1
I1_6
1
I0_6
1
I1_5
1
I0_5
1
I1_4
1
I0_4
1
0034h
ISPR2
Reset Value
Not Used
ADC
USB
SCI
I1_11
1
I0_11
1
I1_10
1
I0_10
1
I1_9
1
I0_9
1
I1_8
1
I0_8
1
0035h
ISPR3
Reset Value
111
1
Not Used
I1_13
1
I0_13
1
I1_12
1
I0_12
1
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