at89c5131 ATMEL Corporation, at89c5131 Datasheet - Page 82

• Manufacturer Part Number: at89c5131
• Description: 8-bit Flash Microcontroller With Full Speed Usb Device At89c5131
• Manufacturer: ATMEL Corporation

4136C–USB–04/05
Table 66. IPL1 Register
IPL1 - Interrupt Priority Register (B2h)
Reset Value = X0XX X000b
Not bit addressable
Number
Bit
7
6
5
4
3
2
1
0
7
-
Mnemonic
PUSBL
PUSBL
PTWIL
PSPIL
PKBL
Bit
6
-
-
-
-
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
USB Interrupt Priority bit
Refer to PUSBH for priority level.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
SPI Interrupt Priority bit
Refer to PSPIH for priority level.
TWI Interrupt Priority bit
Refer to PTWIH for priority level.
Keyboard Interrupt Priority bit
Refer to PKBH for priority level.
5
-
4
-
3
-
PSPIL
2
AT89C5131
PTWIL
1
PKBDL
0
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