AT43USB355M-AC ATMEL [ATMEL Corporation], AT43USB355M-AC Datasheet - Page 83

• Manufacturer Part Number: AT43USB355M-AC
• Description: Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
• Manufacturer: ATMEL [ATMEL Corporation]

2603G–USB–04/06
Function End-point 1..3 Control Register – FEND-P1..3_CR
• Bit 7 – EPEN: End-point Enable
0 = Disable end-point
1 = Enable end-point
• Bit 6..4 – Reserved
These bits are reserved in the AT43USB355 and will read as zero.
• Bit 3 – DTGLE: Data Toggle
Identifies DATA0 or DATA1 packets. This bit will automatically toggle and requires clearing by
the firmware only in certain special circumstances.
• Bit 2 – EPDIR: End-point Direction
0 = Out
1 = In
• Bit 1, 0 – EPTYPE: End-point Type
These bits programs the type of end-point.
Initial Value
Read/Write
$1FE4
$1FE3
$1FE2
Bit
EPEN
EPEN
R/W
Bit1
7
0
0
1
1
R
6
–
–
0
R
5
–
–
0
R
4
–
–
0
DTGLE
DTGLE
DTGLE
Bit0
R/W
1
0
1
3
0
EPDIR
EPDIR
EPDIR
R/W
2
0
EPTYPE1
EPTYPE1
EPTYPE1
Type
Isochronous
Bulk
Interrupt
R/W
1
0
AT43USB355
EPTYPE0
EPTYPE0
EPTYPE0
R/W
0
0
FEND-
P1_CR
FEND-
P2_CR
FEND-
P3_CR
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