AT90USB162 Atmel Corporation, AT90USB162 Datasheet - Page 212

• Manufacturer Part Number: AT90USB162
• Manufacturer: Atmel Corporation

Specifications of AT90USB162

• Flash (kbytes): 16 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 22
• Ext Interrupts: 21
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 5
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

20.18.2
212
AT90USB82/162
USB device endpoint registers
• 7-5 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 4 - FNCERR -Frame Number CRC Error Flag
Set by hardware when a corrupted Frame Number in start of frame packet is received.
This bit and the SOFI interrupt are updated at the same time.
• 3-0 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 7-3 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 2-0 - EPNUM2:0 Endpoint Number Bits
Set to select the number of the endpoint which shall be accessed by the CPU. See Section 20.5,
page 197 for more details.
Values greater than 100b are forbidden.
• 7-5 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 4-0 - EPRST4:0 - Endpoint FIFO Reset Bits
Set to reset the selected endpoint FIFO prior to any other operation, upon hardware reset or
when an USB bus reset has been received. See Section 20.3, page 196 for more information
Bit
Read/Wri
te
Initial
Value
Bit
Read/Wri
te
Initial
Value
Bit
Read/Wri
te
Initial
Value
7
-
R
0
7
-
R
0
7
-
R
0
6
-
R
0
6
-
R
0
6
-
R
0
5
-
R
0
5
-
R
0
5
-
R
0
4
FNCERR
R/W
0
4
-
R
0
4
EPRST D4
R/W
0
3
-
R
0
3
-
R
0
3
EPRST D3
R/W
0
2
-
R
0
2
EPNUM2:0
R/W
0
2
EPRST D2
R/W
0
1
-
R
0
1
R/W
0
1
EPRST D1
R/W
0
0
-
R
0
0
R/W
0
0
EPRST D0
R/W
0
7707F–AVR–11/10
UERST
UDMFN
UENUM