AT89C5132 Atmel Corporation, AT89C5132 Datasheet - Page 43

• Manufacturer Part Number: AT89C5132
• Manufacturer: Atmel Corporation

Specifications of AT89C5132

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-12C
• Max I/o Pins: 44
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Uart: 1
• Adc Channels: 2
• Adc Resolution (bits): 10
• Adc Speed (ksps): 22.7
• Sram (kbytes): 2.25
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 3.6
• Timers: 2
• Isp: UART/USB
• Watchdog: Yes

4173E–USB–09/07
Table 39. IPL1 Register
IPL1 (S:B2h) – Interrupt Priority Low Register 1
Reset Value = 0000 0000b
Bit Number
7
7
6
5
4
3
2
1
0
-
Mnemonic
IPLMMC
IPLUSB
IPLUSB
IPLADC
IPLSPI
IPLI2C
IPLKB
Bit
6
-
-
Description
Reserved
The value read from this bit is always 0. Do not set this bit.
USB Interrupt Priority Level LSB
Refer to Table 33 for priority level description.
Reserved
The value read from this bit is always 0. Do not set this bit.
Keyboard Interrupt Priority Level LSB
Refer to Table 33 for priority level description.
A to D Converter Interrupt Priority Level LSB
Refer to Table 33 for priority level description.
SPI Interrupt Priority Level LSB
Refer to Table 33 for priority level description.
Two Wire Controller Interrupt Priority Level LSB
Refer to Table 33 for priority level description.
MMC Interrupt Priority Level LSB
Refer to Table 33 for priority level description.
5
-
IPLKB
4
IPLADC
3
IPLSPI
2
AT89C5132
IPLI2C
1
IPLMMC
0
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