AT83C5122_08 ATMEL [ATMEL Corporation], AT83C5122_08 Datasheet - Page 166

• Manufacturer Part Number: AT83C5122_08
• Description: C51 Microcontroller with USB and Smart Card Reader Interfaces
• Manufacturer: ATMEL [ATMEL Corporation]

166
AT83R5122, AT8xC5122/23
Table 105. Interrupt Priority High Register 1 - IPH1 (B3h) for AT8xC5122
Reset Value = XXXX X000b (Not bit addressable)
Number
Bit
5-4
7
6
3
2
1
0
7
-
Mnemonic
PUSBH
PUSBH
PSCIH
PSPIH
PKBH
Bit
6
-
-
-
Reserved
The value read from this bit is indeterminate. Do not change this bit.
USB Interrupt Priotity High bit
PUSBH PUSBL
Reserved
The value read from this bit is indeterminate. Do not change these bits.
SCI Interrupt Priority High bit
SPI Interrupt Priority High bit
Reserved
The value read from this bit is indeterminate. Do not change this bit.
Keyboard Interrupt Priority High bit
PKBDH PKBDL
PSCIH
PSPIH
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
5
-
PSCIL
PSPIL
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
4
-
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
PSCIH
3
Description
2
1
-
4202F–SCR–07/2008
0