參數(shù)資料
型號(hào): AT87C58X2-SLSUL
廠商: Atmel
文件頁(yè)數(shù): 21/62頁(yè)
文件大?。?/td> 0K
描述: IC 8051 MCU 32K EPROM 44PLCC
標(biāo)準(zhǔn)包裝: 972
系列: 87C
核心處理器: 8051
芯體尺寸: 8-位
速度: 30/20MHz
連通性: UART/USART
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 32
程序存儲(chǔ)器容量: 32KB(32K x 8)
程序存儲(chǔ)器類型: OTP
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
28
4431E–8051–04/06
AT/TS8xC54/8X2
Table 10-4.
IPH Register
IPH - Interrupt Priority High Register (B7h)
Reset Value = XX00 0000b
Not bit addressable
7
6
5
4
3
2
1
0
-
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
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
5
PT2H
Timer 2 overflow interrupt Priority High bit
PT2H
PT2
Priority Level
00
Lowest
01
10
1
Highest
4
PSH
Serial port Priority High bit
PSH
PS
Priority Level
00
Lowest
01
10
1
Highest
3
PT1H
Timer 1 overflow interrupt Priority High bit
PT1H
PT1
Priority Level
00
Lowest
01
10
1
Highest
2
PX1H
External interrupt 1 Priority High bit
PX1H
PX1
Priority Level
00
Lowest
01
10
1
Highest
1
PT0H
Timer 0 overflow interrupt Priority High bit
PT0H
PT0
Priority Level
00
Lowest
01
10
1
Highest
0
PX0H
External interrupt 0 Priority High bit
PX0H
PX0
Priority Level
00
Lowest
01
10
1
Highest
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