AT89C5131-PLTIL ATMEL Corporation, AT89C5131-PLTIL Datasheet - Page 136

• Manufacturer Part Number: AT89C5131-PLTIL
• Description: 8-bit Flash Microcontroller with Full Speed USB Device
• Manufacturer: ATMEL Corporation

136
AT89C5131
Table 92. USBIEN Register
USBIEN (S:BEh)
USB Global Interrupt Enable Register
Reset Value = 10h
Table 93. USBADDR Register
USBADDR (S:C6h)
USB Address Register
Reset Value = 80h
Bit Number
Bit Number Bit Mnemonic Description
FEN
6-0
7-6
7
7
-
7
5
4
3
2
1
0
Mnemonic Description
UADD[6:0]
UADD6
EWUPCPU
EEOFINT
ESOFINT
FEN
ESPINT
Bit
6
6
-
-
-
-
Function Enable
Set this bit to enable the function. FADD is reset to 1.
Cleared this bit to disable the function.
USB Address
This field contains the default address (0) after power-up or USB bus reset.
It will be written with the value set by a SET_ADDRESS request received by the
device firmware.
EWUPCPU
UADD5
Reserved
The value read from these bits is always 0. Do not set these bits.
Enable Wake Up CPU Interrupt
Set this bit to enable Wake Up CPU Interrupt. (See “USBIEN Register
USBIEN (S:BEh) USB Global Interrupt Enable Register” on page 136)
Clear this bit to disable Wake Up CPU Interrupt.
Enable End Of Reset Interrupt
Set this bit to enable End Of Reset Interrupt. (See “USBIEN Register USBIEN
(S:BEh) USB Global Interrupt Enable Register” on page 136). This bit is set
after reset.
Clear this bit to disable End Of Reset Interrupt.
Enable SOF Interrupt
Set this bit to enable SOF Interrupt. (See “USBIEN Register USBIEN (S:BEh)
USB Global Interrupt Enable Register” on page 136).
Clear this bit to disable SOF Interrupt.
Reserved
The value read from this bit is always 0. Do not set this bit.
Reserved
The value read from this bit is always 0. Do not set this bit.
Enable Suspend Interrupt
Set this bit to enable Suspend Interrupts (see the “USBIEN Register USBIEN
(S:BEh) USB Global Interrupt Enable Register” on page 136).
Clear this bit to disable Suspend Interrupts.
5
5
EEORINT
UADD4
4
4
ESOFINT
UADD3
3
3
UADD2
2
2
-
UADD1
1
1
-
4136B–USB–09/03
ESPINT
UADD0
0
0