AT80C51RD2-RLRUM Atmel, AT80C51RD2-RLRUM Datasheet - Page 49

• Manufacturer Part Number: AT80C51RD2-RLRUM
• Description: IC MCU 80C51 HI PERFORM 44VQFP
• Manufacturer: Atmel
• Series: 80Cr

Specifications of AT80C51RD2-RLRUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: AT80x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1280 B
• Interface Type: UART, SPI
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

4113D–8051–01/09
Reset Value = XXXX XXX0b
Bit addressable
Table 12-6.
IPL1 - Interrupt Priority Register (B2h)
Reset Value = XXXX XXX0b
Bit addressable
Table 12-7.
Number
Number
Bit
Bit
7
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
-
IPL1 Register
IPH1 Register
Mnemonic Description
Mnemonic Description
KBDL
KBD
Bit
Bit
6
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Keyboard interrupt Enable bit
Cleared to disable keyboard interrupt.
Set to enable keyboard interrupt.
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.
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.
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.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Keyboard Interrupt Priority bit
Refer to KBDH for priority level.
5
-
4
-
3
-
2
-
AT80C51RD2
1
-
KBDL
0
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