AT89C51AC3-RDTIM Atmel, AT89C51AC3-RDTIM Datasheet - Page 118
AT89C51AC3-RDTIM
Manufacturer Part Number
AT89C51AC3-RDTIM
Description
IC 8051 MCU FLASH 64K 64VQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C51AC3-RLTUM.pdf
(140 pages)
Specifications of AT89C51AC3-RDTIM
Core Processor
8051
Core Size
8-Bit
Speed
60MHz
Connectivity
SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
36
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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AT89C51AC3
Table 68. IPL1 Register
IPL1 (S:F8h)
Interrupt Priority Low Register 1
Reset Value = XXXX 0X0Xb
bit addressable
Number
Bit
7
-
7
6
5
4
3
2
1
0
Mnemonic Description
PADCL
SPIL
Bit
6
-
-
-
-
-
-
-
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.
SPI Interrupt Priority Level Less Significant Bit
Refer to SPIH for priority level.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
ADC Interrupt Priority Level Less Significant Bit
Refer to PSPIH for priority level.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
5
-
4
-
SPIL
3
2
-
4383D–8051–02/08
PADCL
1
0
-
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