ATUC128L4U Atmel Corporation, ATUC128L4U Datasheet - Page 95
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ATUC128L4U
Manufacturer Part Number
ATUC128L4U
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(159 pages)
3.ATUC128L4U.pdf
(960 pages)
4.ATUC128L4U.pdf
(92 pages)
Specifications of ATUC128L4U
Flash (kbytes)
128 Kbytes
Pin Count
48
Max. Operating Frequency
50 MHz
Cpu
32-bit AVR
# Of Touch Channels
17
Hardware Qtouch Acquisition
Yes
Max I/o Pins
36
Ext Interrupts
36
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
2
Uart
4
Lin
4
Ssc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
12
Adc Speed (ksps)
460
Analog Comparators
8
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
16
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.62 to 3.6
Operating Voltage (vcc)
1.62 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
18
Input Capture Channels
12
Pwm Channels
35
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATUC128L4U-U
Manufacturer:
ATMEL
Quantity:
3 006
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- ATUC128L4U PDF datasheet #3
- ATUC128L4U PDF datasheet #4
- Current page: 95 of 960
- Download datasheet (15Mb)
8.6.2.14
32142A–12/2011
Management of IN endpoints
• Overview
TXINI
FIFOCON
TXINI
FIFOCON
IN packets are sent by the USBC device controller upon IN requests from the host.
The endpoint and its descriptor in RAM must be pre configured (see section
ment” on page 90
When the current bank is clear, the TXINI and FIFO Control (UECONn.FIFOCON) bits will be set
simultaneously. This triggers an EPnINT interrupt if the Transmitted IN Data Interrupt Enable
(TXINE) bit in UECONn is one.
TXINI shall be cleared by software (by writing a one to the Transmitted IN Data Interrupt Enable
Clear bit in the Endpoint n Control Clear register (UECONnCLR.TXINIC)) to acknowledge the
interrupt. This has no effect on the endpoint FIFO.
The user writes the IN data to the bank referenced by the EPn descriptor and allows the USBC
to send the data by writing a one to the FIFO Control Clear (UECONnCLR.FIFOCONC) bit. This
will also cause a switch to the next bank if the IN endpoint is composed of multiple banks. The
TXINI and FIFOCON bits will be updated accordingly.
TXINI should always be cleared before clearing FIFOCON to avoid missing an TXINI event.
Figure 8-8.
Figure 8-9.
SW
write data to CPU
SW
write data to CPU
BANK 0
NAK
BANK 0
Example of an IN endpoint with one data bank
Example of an IN endpoint with two data banks
for more details).
SW
IN
SW
SW
IN
write data to CPU
BANK 1
(bank 0)
DATA
(bank 0)
DATA
SW
ATUC64/128/256L3/4U
HW
ACK
HW
ACK
SW
write data to CPU
IN
SW
write data to CPU
BANK0
BANK 0
(bank 1)
DATA
”RAM manage-
SW
ACK
IN
95
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