AT89C51CC02 Atmel Corporation, AT89C51CC02 Datasheet - Page 138
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AT89C51CC02
Manufacturer Part Number
AT89C51CC02
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT89C51CC02.pdf
(7 pages)
2.AT89C51CC02.pdf
(159 pages)
3.AT89C51CC02.pdf
(33 pages)
4.AT89C51CC02.pdf
(29 pages)
Specifications of AT89C51CC02
Flash (kbytes)
16 Kbytes
Max. Operating Frequency
40 MHz
Cpu
8051-12C
Max I/o Pins
20
Uart
1
Can
1
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
62.5
Sram (kbytes)
0.5
Eeprom (bytes)
2048
Self Program Memory
API
Operating Voltage (vcc)
3.0 to 5.5
Timers
4
Isp
UART/CAN
Watchdog
Yes
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138
AT/T89C51CC02
Table 112. IPH0 Register
IPH0 (B7h)
Interrupt High Priority Register
Reset Value = X000 0000b
Number
Bit
7
-
7
6
5
4
3
2
1
0
Mnemonic Description
PPCH
PPCH
PT2H
PT1H
PX1H
PT0H
PX0H
PSH
Bit
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
PCA Interrupt Priority Level Most Significant bit
PPCH PPC Priority level
0
0
1
1
Timer 2 Overflow Interrupt High Priority bit
PT2H PT2 Priority Level
0
0
1
1
Serial Port High Priority bit
PSH
0
0
1
1
Timer 1 Overflow Interrupt High Priority bit
PT1H PT1 Priority Level
0
0
1
1
External Interrupt 1 High Priority bit
PX1H PX1 Priority Level
0
0
1
1
Timer 0 Overflow Interrupt High Priority bit
PT0H PT0 Priority Level
0
0
1
1
External Interrupt 0 High Priority bit
PX0H PX0 Priority Level
0
0
1
1
PT2H
5
0
1
0
1
0
1
0
1
PS
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Lowest
Highest priority
Lowest
Highest
Priority Level
Lowest
Highest
Lowest
Highest
Lowest
Highest
Lowest
Highest
Lowest
Highest
PSH
4
PT1H
3
PX1H
2
PT0H
1
4126L–CAN–01/08
PX0H
0