Bit
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
0
Initial
Value
• 7-6 - EPTYPE1:0 - Endpoint Type Bits
Set this bit according to the endpoint configuration:
00b: Control10b: Bulk
01b: Isochronous11b: Interrupt
• 5-1 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 0 - EPDIR - Endpoint Direction Bit
Set to configure an IN direction for bulk, interrupt or isochronous endpoints.
Clear to configure an OUT direction for bulk, interrupt, isochronous or control endpoints.
Bit
7
-
6
5
4
3
2
1
0
-
EPSIZE2:0
R/W
EPBK1:0
R/W
ALLOC
R/W
UECFG1X
Read/Wri
te
R
R/W
0
R/W
0
R/W
0
R
Initial
Value
0
0
0
0
0
• 7 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 6-4 - EPSIZE2:0 - Endpoint Size Bits
Set this bit according to the endpoint size:
000b: 8 bytes
001b: 16 bytes
010b: 32 bytes
011b: 64 bytes
Other : Reserved. Do not use this configuration.
• 3-2 - EPBK1:0 - Endpoint Bank Bits
Set this field according to the endpoint size:
00b: One bank
01b: Double bank
1xb: Reserved. Do not use this configuration.
• 1 - ALLOC - Endpoint Allocation Bit
Set this bit to allocate the endpoint memory.
Clear to free the endpoint memory.
See Section 20.6, page 197 for more details.
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AT90USB82/162
7707D–AVR–07/08
ATMEL [ ATMEL ]
