Rainbow Electronics AT89C51SND1C - Manual (Page 44)

44
AT8xC51SND1C
4109E–8051–06/03
Table 55. IPL0 Register
IPL0 (S:B8h) - Interrupt Priority Low Register 0
Reset Value = X000 0000b
7 6 5 4 3 2 1 0
- IPLAUD IPLMP3 IPLS IPLT1 IPLX1 IPLT0 IPLX0
Bit
Number
Bit
Mnemonic Description
7 -
Reserved
The value read from this bit is indeterminate. Do not set this bit.
6 IPLAUD
Audio Interface Interrupt Priority Level LSB
Refer to Table 49 for priority level description.
5 IPLMP3
MP3 Decoder Interrupt Priority Level LSB
Refer to Table 49 for priority level description.
4 IPLS
Serial Port Interrupt Priority Level LSB
Refer to Table 49 for priority level description.
3 IPLT1
Timer 1 Interrupt Priority Level LSB
Refer to Table 49 for priority level description.
2 IPLX1
External Interrupt 1 Priority Level LSB
Refer to Table 49 for priority level description.
1 IPLT0
Timer 0 Interrupt Priority Level LSB
Refer to Table 49 for priority level description.
0 IPLX0
External Interrupt 0 Priority Level LSB
Refer to Table 49 for priority level description.