AT89C5122D-PSTUM Atmel, AT89C5122D-PSTUM Datasheet - Page 163

• Manufacturer Part Number: AT89C5122D-PSTUM
• Description: IC 8051 MCU FLASH 32K 64QFN
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C5122D-PSTUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: SmartCard, SPI, UART/USART, USB
• Peripherals: LED, POR, WDT
• Number Of I /o: 46
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFN
• For Use With: AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-03 - KIT STARTER FOR MCU AT8XC5122/23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

4202F–SCR–07/2008
Table 102. Interrupt Priority High Register 0 - IPH0 (B7h)
Reset Value = X000 0000b (Not bit addressable)
Number
7 - 5
Bit
7
-
4
3
2
1
0
Mnemonic
PT1H
PX1H
PT0H
PX0H
PSH
6
Bit
-
-
Description
Reserved
The value read from this bit is indeterminate. Do not change these bits.
Serial port Priority High bit
Timer 1 overflow interrupt Priority High bit
External interrupt 1 Priority High bit
Timer 0 overflow interrupt Priority High bit
External interrupt 0 Priority High bit
PT1H
PX1H
PT0H
PX0H
PSH
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
5
-
PX0L
PT1L
PX1L
PT0L
PSL
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
AT83R5122, AT8xC5122/23
PSH
4
Priority Level
Lowest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Highest
PT1H
3
PX1H
2
PT0H
1
PX0H
0
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