AT89C5132 Atmel Corporation, AT89C5132 Datasheet - Page 42

• 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

42
AT89C5132
Table 38. IPL0 Register
IPL0 (S:B8h) – Interrupt Priority Low Register 0
Reset Value = X000 0000b
Bit Number
7
7
6
5
4
3
2
1
0
-
Mnemonic
IPLAUD
IPLAUD
IPLMP3
IPLX1
IPLX0
IPLT1
IPLT0
IPLS
Bit
6
-
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Audio Interface Interrupt Priority Level LSB
Refer to Table 33 for priority level description.
MP3 Decoder Interrupt Priority Level LSB
Refer to Table 33 for priority level description.
Serial Port Interrupt Priority Level LSB
Refer to Table 33 for priority level description.
Timer 1 Interrupt Priority Level LSB
Refer to Table 33 for priority level description.
External Interrupt 1 Priority Level LSB
Refer to Table 33 for priority level description.
Timer 0 Interrupt Priority Level LSB
Refer to Table 33 for priority level description.
External Interrupt 0 Priority Level LSB
Refer to Table 33 for priority level description.
5
–
IPLS
4
IPLT1
3
IPLX1
2
IPLT0
1
4173E–USB–09/07
IPLX0
0