参数资料
型号: AT89C51ID2-SLSUM
厂商: Atmel
文件页数: 122/157页
文件大小: 0K
描述: IC 8051 MCU FLASH 64K 44PLCC
产品培训模块: MCU Product Line Introduction
标准包装: 972
系列: 89C
核心处理器: 8051
芯体尺寸: 8-位
速度: 60MHz
连通性: I²C,SPI,UART/USART
外围设备: POR,PWM,WDT
输入/输出数: 34
程序存储器容量: 64KB(64K x 8)
程序存储器类型: 闪存
EEPROM 大小: 2K x 8
RAM 容量: 2K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 44-LCC(J 形引线)
包装: 管件
配用: AT89OCD-01-ND - USB EMULATOR FOR AT8XC51 MCU
67
AT89C51ID2
4289C–8051–11/05
Table 51. IPH0 Register
IPH0 - Interrupt Priority High Register (B7h)
Reset Value = X000 0000b
Not bit addressable
76
543
210
-
PPCH
PT2H
PSH
PT1H
PX1H
PT0H
PX0H
Bit
Number
Bit
Mnemonic
Description
7-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
6
PPCH
PCA interrupt Priority high bit.
PPCHPPCLPriority Level
0
0Lowest
01
10
1
1Highest
5PT2H
Timer 2 overflow interrupt Priority High bit
PT2HPT2LPriority Level
0
0Lowest
01
10
1
1Highest
4
PSH
Serial port Priority High bit
PSH PSLPriority Level
0
0Lowest
0
1
0
1
1Highest
3PT1H
Timer 1 overflow interrupt Priority High bit
PT1HPT1L Priority Level
00 Lowest
01
10
11Highest
2
PX1H
External interrupt 1 Priority High bit
PX1HPX1LPriority Level
0
0Lowest
01
10
1
1Highest
1PT0H
Timer 0 overflow interrupt Priority High bit
PT0HPT0LPriority Level
0
0Lowest
0
1
10
1
1Highest
0
PX0H
External interrupt 0 Priority High bit
PX0H PX0LPriority Level
0
0Lowest
01
10
1
1Highest
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