Rainbow Electronics AT89C5131 User Manual
Page 141
141
AT89C5131
4136A–USB–03/03
Table 93. UEPRST Register
UEPRST (S:D5h)
USB Endpoint FIFO Reset Register
Reset Value = 00h
7
6
5
4
3
2
1
0
-
EP6RST
EP5RST
EP4RST
EP3RST
EP2RST
EP1RST
EP0RST
Bit Number
Bit
Mnemonic Description
7
-
Reserved
The value read from this bit is always 0. Do not set this bit.
6
EP6RST
Endpoint 6 FIFO Reset
Set this bit and reset the endpoint FIFO prior to any other operation, upon
hardware reset or when an USB bus reset has been received.
Then, clear this bit to complete the reset operation and start using the FIFO.
5
EP5RST
Endpoint 5 FIFO Reset
Set this bit and reset the endpoint FIFO prior to any other operation, upon
hardware reset or when an USB bus reset has been received.
Then, clear this bit to complete the reset operation and start using the FIFO.
4
EP4RST
Endpoint 4 FIFO Reset
Set this bit and reset the endpoint FIFO prior to any other operation, upon
hardware reset or when an USB bus reset has been received.
Then, clear this bit to complete the reset operation and start using the FIFO.
3
EP3RST
Endpoint 3 FIFO Reset
Set this bit and reset the endpoint FIFO prior to any other operation, upon
hardware reset or when an USB bus reset has been received.
Then, clear this bit to complete the reset operation and start using the FIFO.
2
EP2RST
Endpoint 2 FIFO Reset
Set this bit and reset the endpoint FIFO prior to any other operation, upon
hardware reset or when an USB bus reset has been received.
Then, clear this bit to complete the reset operation and start using the FIFO.
1
EP1RST
Endpoint 1 FIFO Reset
Set this bit and reset the endpoint FIFO prior to any other operation, upon
hardware reset or when an USB bus reset has been received.
Then, clear this bit to complete the reset operation and start using the FIFO.
0
EP0RST
Endpoint 0 FIFO Reset
Set this bit and reset the endpoint FIFO prior to any other operation, upon
hardware reset or when an USB bus reset has been received.
Then, clear this bit to complete the reset operation and start using the FIFO.