參數(shù)資料
型號(hào): P87CL52X2BDH
廠商: NXP SEMICONDUCTORS
元件分類(lèi): 微控制器/微處理器
英文描述: 80C51 8-bit microcontroller family
中文描述: 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PDSO38
封裝: 4.40 MM, 0.50 MM PITCH, PLASTIC, SHRINK, SOT-510-1, TSSOP-38
文件頁(yè)數(shù): 30/47頁(yè)
文件大小: 301K
代理商: P87CL52X2BDH
Philips Semiconductors
Product data
P87CL52X2/54X2
80C51 8-bit microcontroller family
8K/16K OTP 256 bytes RAM ROMless low voltage
(1.8 V to 3.3 V), low power, high speed (33 MHz)
2003 May 14
30
PX0
IP (0B8H)
Priority Bit = 1 assigns higher priority
Priority Bit = 0 assigns lower priority
BIT
IP.7
IP.6
IP.5
IP.4
IP.3
IP.2
IP.1
IP.0
SYMBOL
PT2
PS
PT1
PX1
PT0
PX0
FUNCTION
Not implemented, reserved for future use.
Not implemented, reserved for future use.
Timer 2 interrupt priority bit.
Serial Port interrupt priority bit.
Timer 1 interrupt priority bit.
External interrupt 1 priority bit.
Timer 0 interrupt priority bit.
External interrupt 0 priority bit.
SU00572
PT0
PX1
PT1
PS
PT2
0
1
2
3
4
5
6
7
Figure 17. IP Registers
PX0H
IPH (B7H)
Priority Bit = 1 assigns higher priority
Priority Bit = 0 assigns lower priority
BIT
IPH.7
IPH.6
IPH.5
IPH.4
IPH.3
IPH.2
IPH.1
IPH.0
SYMBOL
PT2H
PSH
PT1H
PX1H
PT0H
PX0H
FUNCTION
Not implemented, reserved for future use.
Not implemented, reserved for future use.
Timer 2 interrupt priority bit high.
Serial Port interrupt priority bit high.
Timer 1 interrupt priority bit high.
External interrupt 1 priority bit high.
Timer 0 interrupt priority bit high.
External interrupt 0 priority bit high.
SU01058
PT0H
PX1H
PT1H
PSH
PT2H
0
1
2
3
4
5
6
7
Figure 18. IPH Registers
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