参数资料
型号: TS87C58X2-MCC
厂商: Atmel
文件页数: 19/62页
文件大小: 0K
描述: IC MCU 8BIT 32K OTP 40MHZ 44PQFP
标准包装: 96
系列: 87C
核心处理器: 8051
芯体尺寸: 8-位
速度: 40/20MHz
连通性: UART/USART
外围设备: POR,WDT
输入/输出数: 32
程序存储器容量: 32KB(32K x 8)
程序存储器类型: OTP
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振荡器型: 内部
工作温度: 0°C ~ 70°C
封装/外壳: 44-QFP
包装: 托盘
26
4431E–8051–04/06
AT/TS8xC54/8X2
If two interrupt requests of different priority levels are received simultaneously, the request of
higher priority level is serviced. If interrupt requests of the same priority level are received simul-
taneously, an internal polling sequence determines which request is serviced. Thus within each
priority level there is a second priority structure determined by the polling sequence.
Table 10-2.
IE Register
IE - Interrupt Enable Register (A8h)
Reset Value = 0X00 0000b
Bit addressable
7
6
5
4
3
2
1
0
EA
-
ET2
ES
ET1
EX1
ET0
EX0
Bit
Number
Bit
Mnemonic
Description
7
EA
Enable All interrupt bit
Clear to disable all interrupts.
Set to enable all interrupts.
If EA=1, each interrupt source is individually enabled or disabled by setting or clearing its
own interrupt enable bit.
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
5
ET2
Timer 2 overflow interrupt Enable bit
Clear to disable timer 2 overflow interrupt.
Set to enable timer 2 overflow interrupt.
4
ES
Serial port Enable bit
Clear to disable serial port interrupt.
Set to enable serial port interrupt.
3
ET1
Timer 1 overflow interrupt Enable bit
Clear to disable timer 1 overflow interrupt.
Set to enable timer 1 overflow interrupt.
2
EX1
External interrupt 1 Enable bit
Clear to disable external interrupt 1.
Set to enable external interrupt 1.
1
ET0
Timer 0 overflow interrupt Enable bit
Clear to disable timer 0 overflow interrupt.
Set to enable timer 0 overflow interrupt.
0
EX0
External interrupt 0 Enable bit
Clear to disable external interrupt 0.
Set to enable external interrupt 0.
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