Rainbow Electronics AT89C51SND1C - Manual (Page 106)

106
AT8xC51SND1C
4109E–8051–06/03
Table 99. UEPIEN Register
UEPIEN (S:C2h) – USB Endpoint Interrupt Enable Register
Reset Value = 0000 0000b
Table 100. UEPDATX Register
UEPDATX (S:CFh) – USB Endpoint X FIFO Data Register (X = EPNUM set in UEPNUM)
Reset Value = XXh
7 6 5 4 3 2 1 0
- - - - - EP2INTE EP1INTE EP0INTE
Bit
Number
Bit
Mnemonic Description
7 - 3 -
Reserved
The value read from these bits is always 0. Do not set these bits.
2 EP2INTE
Endpoint 2 Interrupt Enable Bit
Set to enable the interrupts for endpoint 2.
Clear this bit to disable the interrupts for endpoint 2.
1 EP1INTE
Endpoint 1 Interrupt Enable Bit
Set to enable the interrupts for the endpoint 1.
Clear to disable the interrupts for the endpoint 1.
0 EP0INTE
Endpoint 0 Interrupt Enable Bit
Set to enable the interrupts for the endpoint 0.
Clear to disable the interrupts for the endpoint 0.
7 6 5 4 3 2 1 0
FDAT7 FDAT6 FDAT5 FDAT4 FDAT3 FDAT2 FDAT1 FDAT0
Bit
Number
Bit
Mnemonic Description
7 - 0 FDAT7:0
Endpoint X FIFO Data
Data Byte to be written to FIFO or data Byte to be read from the FIFO, for the
Endpoint X (see EPNUM).