ATMEGA16U2-16AU Atmel, ATMEGA16U2-16AU Datasheet - Page 222
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ATMEGA16U2-16AU
Manufacturer Part Number
ATMEGA16U2-16AU
Description
8-bit Microcontrollers - MCU 16K Flash
Manufacturer
Atmel
Datasheet
1.ATMEGA16U2-16AU.pdf
(310 pages)
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
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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
222
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