Rainbow Electronics AT89C5122 - Manual (Page 169)

169
AT8xC5122/23
4202E–SCR–06/06
Reset Value = X0XX 0XXXb (Not bit addressable)
Table 106. Interrupt Priority High Register 1 - IPH1 (B3h) for AT83C5123
7 6 5 4 3 2 1 0
- PUSBH - - PSCIH - - -
Bit
Number
Bit
Mnemonic Description
7 -
Reserved
The value read from this bit is indeterminate. Do not change this bit.
6 PUSBH
USB Interrupt Priotity High bit
PUSBH
PUSBL Priority Level
0 0 Lowest
0 1
1 0
1 1 Highest
5-4 -
Reserved
The value read from this bit is indeterminate. Do not change these bits.
3 PSCIH
SCI Interrupt Priority High bit
PSCIH PSCIL Priority Level
0 0 Lowest
0 1
1 0
1 1 Highest
2
Reserved
The value read from this bit is indeterminate. Do not change these bits.
1 -
Reserved
The value read from this bit is indeterminate. Do not change this bit.
0
Reserved
The value read from this bit is indeterminate. Do not change these bits.