ATMEGA16U2-16AU Atmel, ATMEGA16U2-16AU Datasheet - Page 222

• Manufacturer Part Number: ATMEGA16U2-16AU
• Description: 8-bit Microcontrollers - MCU 16K Flash
• Manufacturer: Atmel

Specifications of ATMEGA16U2-16AU

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: AVR
• Data Bus Width: 8 bit
• Program Memory Size: 16 KB
• Data Ram Size: 1.25 KB
• Data Rom Size: 512 B
• Program Memory Type: Flash
• Factory Pack Quantity: 1250

21.18.19 UEINT – USB Endpoint Number interrupt Register
7799D–AVR–11/10
This register contains the number of received byte into the current bank of the selected end-
point. The content of this register is decremented after each write access to the endpoint data
register.
• Bits 7:5 – Res: Reserved
The value read from these bits is always 0. Do not set these bits.
• Bits 4:0 – EPINT[4:0]: Endpoint Interrupts Bits
These flags are updated by the USB controller when a USB endpoint interrupt occurs (at least
one bit in UEINTX set). Each bit in this field indicates which endpoint number has generated a
USB endpoint interrupt request. Each one of these bits are independently cleared by hardware
when their respective interrupt source is served.
Bit
(0xF4)
Read/Write
Initial Value
R
0
7
-
R
6
0
-
R
5
0
-
R
4
0
ATmega8U2/16U2/32U2
R
3
0
EPINT4:0
R
2
0
R
1
0
R
0
0
UEINT
R
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