參數(shù)資料
型號(hào): P80CL51
廠商: NXP Semiconductors N.V.
英文描述: Low voltage 8-bit microcontrollers with UART
中文描述: 低電壓的8位微控制器的UART的
文件頁(yè)數(shù): 35/68頁(yè)
文件大小: 305K
代理商: P80CL51
1997 Apr 15
35
Philips Semiconductors
Product specification
Low voltage 8-bit microcontrollers with
UART
P80CL31; P80CL51
14.3.3
I
NTERRUPT
P
RIORITY
R
EGISTER
(IP0)
Bit values: 0 = low priority; 1 = high priority.
Table 15
Interrupt Priority Register (SFR address B8H)
Table 16
Description of IP0 bits
14.3.4
I
NTERRUPT
P
RIORITY
R
EGISTER
(IP1)
Bit values: 0 = low priority; 1 = high priority.
Table 17
Interrupt Priority Register (SFR address F8H)
Table 18
Description of IP1 bits
7
6
5
4
3
2
1
0
PS0
PT1
PX1
PT0
PX0
BIT
SYMBOL
PS0
PT1
PX1
PT0
PX0
DESCRIPTION
7
6
5
4
3
2
1
0
reserved
reserved
reserved
UART SIO interrupt priority level
Timer 1 interrupt priority level
external interrupt 1 priority level
Timer 0 interrupt priority level
external interrupt 0 priority level
7
6
5
4
3
2
1
0
PX9
PX8
PX7
PX6
PX5
PX4
PX3
PX2
BIT
SYMBOL
DESCRIPTION
7
6
5
4
3
PX9
PX8
PX7
PX6
PX5
external interrupt 9 priority level
external interrupt 8 priority level
external interrupt 7 priority level
external interrupt 6 priority level
external interrupt 5 priority level
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