AT89C51IC2-RLTIM ATMEL [ATMEL Corporation], AT89C51IC2-RLTIM Datasheet - Page 59
AT89C51IC2-RLTIM
Manufacturer Part Number
AT89C51IC2-RLTIM
Description
8-bit Flash Microcontroller with 2-wire Interface
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT89C51IC2-RLTIM.pdf
(147 pages)
- Current page: 59 of 147
- Download datasheet (2Mb)
Registers
4301C–8051–06/06
The PCA interrupt vector is located at address 0033H, the SPI interrupt vector is located
at address 0043H, the I2C interrupt vector at 0043H and Keyboard interrupt vector is
located at address 003BH. All other vectors addresses are the same as standard C52
devices.
Table 47. Priority Level Bit Values
A low-priority interrupt can be interrupted by a high priority interrupt, but not by another
low-priority interrupt. A high-priority interrupt can’t be interrupted by any other interrupt
source.
If two interrupt requests of different priority levels are received simultaneously, the
request of higher priority level is serviced. If interrupt requests of the same priority level
are received simultaneously, an internal polling sequence determines which request is
serviced. Thus within each priority level there is a second priority structure determined
by the polling sequence.
IPH.x
0
0
1
1
IPL.x
0
1
0
1
Interrupt Level Priority
AT89C51IC2
3 (Highest)
0 (Lowest)
1
2
59
Related parts for AT89C51IC2-RLTIM
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
At89c51ic2 8-bit Flash Microcontroller With 2-wire Interface
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 44TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 44PLCC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 44PLCC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 40DIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 40DIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
8-bit microcontroller with 4K bytes flash, 5V, 20MHz
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit microcontroller with 4K bytes flash, 5V, 20MHz
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 44TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC 8051 MCU FLASH 4K 44TQFP
Manufacturer:
Atmel
Datasheet: