參數(shù)資料
型號(hào)： 935255560512
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 微控制器/微處理器
英文描述： 8-BIT, 16 MHz, MICROCONTROLLER, PQCC44
封裝： PLASTIC, MO-047, SOT-187-2, LCC-44
文件頁(yè)數(shù)： 10/35頁(yè)
文件大?。?/td> 313K
代理商： 935255560512
Philips Semiconductors
Product specification
80C31/80C32
80C51 8-bit microcontroller family
128/256 byte RAM ROMless low voltage (2.7V–5.5V),
low power, high speed (33 MHz)
2000 Aug 07
18
PX0
IP (0B8H)
Priority Bit = 1 assigns higher priority
Priority Bit = 0 assigns lower priority
BIT
SYMBOL
FUNCTION
IP.7
—
Not implemented, reserved for future use.
IP.6
—
Not implemented, reserved for future use.
IP.5
PT2
Timer 2 interrupt priority bit.
IP.4
PS
Serial Port interrupt priority bit.
IP.3
PT1
Timer 1 interrupt priority bit.
IP.2
PX1
External interrupt 1 priority bit.
IP.1
PT0
Timer 0 interrupt priority bit.
IP.0
PX0
External interrupt 0 priority bit.
SU00572
PT0
PX1
PT1
PS
PT2
—
0
1
2
3
4
5
6
7
Figure 11. IP Registers
PX0H
IPH (B7H)
Priority Bit = 1 assigns higher priority
Priority Bit = 0 assigns lower priority
BIT
SYMBOL
FUNCTION
IPH.7
—
Not implemented, reserved for future use.
IPH.6
—
Not implemented, reserved for future use.
IPH.5
PT2H
Timer 2 interrupt priority bit high.
IPH.4
PSH
Serial Port interrupt priority bit high.
IPH.3
PT1H
Timer 1 interrupt priority bit high.
IPH.2
PX1H
External interrupt 1 priority bit high.
IPH.1
PT0H
Timer 0 interrupt priority bit high.
IPH.0
PX0H
External interrupt 0 priority bit high.
SU01058
PT0H
PX1H
PT1H
PSH
PT2H
—
0
1
2
3
4
5
6
7
Figure 12. IPH Registers
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