AT87C52X2-SLSUV Atmel, AT87C52X2-SLSUV Datasheet - Page 24

• Manufacturer Part Number: AT87C52X2-SLSUV
• Description: Microcontrollers (MCU) Microcontroller
• Manufacturer: Atmel

Specifications of AT87C52X2-SLSUV

• Data Bus Width: 8 bit
• Program Memory Type: EPROM
• Program Memory Size: 8 KB
• Data Ram Size: 256 B
• Interface Type: UART
• Maximum Clock Frequency: 30 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3 bit
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: PLCC
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: No

24
TS8xCx2X2
Table 13. IP Register
IP - Interrupt Priority Register (B8h)
Reset Value = XX00 0000b
Bit addressable
Number
Bit
7
6
5
4
3
2
1
0
7
-
Mnemonic
PT2
PT1
PX1
PT0
PX0
Bit
PS
6
-
-
-
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Timer 2 overflow interrupt Priority bit
Refer to PT2H for priority level.
Serial port Priority bit
Refer to PSH for priority level.
Timer 1 overflow interrupt Priority bit
Refer to PT1H for priority level.
External interrupt 1 Priority bit
Refer to PX1H for priority level.
Timer 0 overflow interrupt Priority bit
Refer to PT0H for priority level.
External interrupt 0 Priority bit
Refer to PX0H for priority level.
PT2
5
PS
4
PT1
3
PX1
2
PT0
1
4184I–8051–02/08
PX0
0