參數(shù)資料
型號: AT89C51RB2-SLSUM
廠商: Atmel
文件頁數(shù): 82/127頁
文件大小: 0K
描述: IC 8051 MCU FLASH 16K 44PLCC
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
標準包裝: 972
系列: 89C
核心處理器: 8051
芯體尺寸: 8-位
速度: 60MHz
連通性: SPI,UART/USART
外圍設(shè)備: POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲器容量: 16KB(16K x 8)
程序存儲器類型: 閃存
RAM 容量: 1.25K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
配用: AT89OCD-01-ND - USB EMULATOR FOR AT8XC51 MCU
AT89STK-11-ND - KIT STARTER FOR AT89C51RX2
58
AT89C51RB2/RC2
4180E–8051–10/06
Table 45. IPL0 Register
IPL0 - Interrupt Priority Register (B8h)
Reset Value = X000 0000b
Bit addressable
76
54
32
1
0
-
PPCL
PT2L
PSL
PT1L
PX1L
PT0L
PX0L
Bit
Number
Bit
Mnemonic
Description
7-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
6
PPCL
PCA Interrupt Priority Bit
see PPCH for priority level.
5PT2L
Timer 2 Overflow Interrupt Priority Bit
see PT2H for priority level.
4
PSL
Serial Port Priority Bit
see PSH for priority level.
3PT1L
Timer 1 Overflow Interrupt Priority Bit
see PT1H for priority level.
2PX1L
External Interrupt 1 Priority Bit
see PX1H for priority level.
1PT0L
Timer 0 Overflow Interrupt Priority Bit
see PT0H for priority level.
0PX0L
External Interrupt 0 Priority Bit
see PX0H for priority level.
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