SAM3U4E Atmel Corporation, SAM3U4E Datasheet - Page 900
![no-image](/images/manufacturer_photos/0/0/79/atmel_corporation_sml.jpg)
SAM3U4E
Manufacturer Part Number
SAM3U4E
Description
Manufacturer
Atmel Corporation
Specifications of SAM3U4E
Flash (kbytes)
256 Kbytes
Pin Count
144
Max. Operating Frequency
96 MHz
Cpu
Cortex-M3
# Of Touch Channels
57
Hardware Qtouch Acquisition
No
Max I/o Pins
96
Ext Interrupts
96
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Hi-Speed
Usb Interface
Device
Spi
5
Twi (i2c)
2
Uart
5
Ssc
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
50
Self Program Memory
YES
External Bus Interface
1
Dram Memory
No
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
1.62 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
- Current page: 900 of 1183
- Download datasheet (26Mb)
38.6.5.6
38.6.5.7
900
900
SAM3U Series
SAM3U Series
Interrupts
Write Protect Registers
Depending on the interrupt mask in the PWM_IMR1 and PWM_IMR2 registers, an interrupt can
be generated at the end of the corresponding channel period (CHIDx in the PWM_ISR1 regis-
ter), after a fault event (FCHIDx in the PWM_ISR1 register), after a comparison match (CMPMx
in the PWM_ISR2 register), after a comparison update (CMPUx in the PWM_ISR2 register) or
according to the transfer mode of the synchronous channels (WRDY, ENDTX, TXBUFE and
UNRE in the PWM_ISR2 register).
If the interrupt is generated by the flags CHIDx or FCHIDx, the interrupt remains active until a
read operation in the PWM_ISR1 register occurs.
If the interrupt is generated by the flags WRDY or UNRE or CMPMx or CMPUx, the interrupt
remains active until a read operation in the PWM_ISR2 register occurs.
A channel interrupt is enabled by setting the corresponding bit in the PWM_IER1 and
PWM_IER2 registers. A channel interrupt is disabled by setting the corresponding bit in the
PWM_IDR1 and PWM_IDR2 registers.
To prevent any single software error that may corrupt PWM behavior, the registers listed below
can be write-protected by writing the field WPCMD in the
on page 934
There are two types of Write Protect:
• Register group 0:
• Register group 1:
• Register group 2:
• Register group 3:
• Register group 4:
• Register group 5:
• Write Protect SW, which can be enabled or disabled.
• Write Protect HW, which can just be enabled, only a hardware reset of the PWM controller
can disable it.
–
–
–
–
–
–
–
–
–
–
–
–
“PWM Clock Register” on page 905
“PWM Disable Register” on page 907
“PWM Sync Channels Mode Register” on page 913
“PWM Channel Mode Register” on page 941
“PWM Channel Period Register” on page 945
“PWM Channel Period Update Register” on page 946
“PWM Channel Dead Time Register” on page 948
“PWM Channel Dead Time Update Register” on page 949
“PWM Fault Mode Register” on page 928
“PWM Fault Protection Value Register” on page 931
(PWM_WPCR). They are divided into 6 groups:
“PWM Write Protect Control Register”
6430E–ATARM–29-Aug-11
6430E–ATARM–29-Aug-11
Related parts for SAM3U4E
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![U641B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
![U4082B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
![U4255BM-M](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B-P](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
![TDA4470](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
![ATF22V10B-25PC](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
![AT89C51ED2-IM](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
![AT24C01](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet:
![U6046B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
U6046BREAR WINDOW HEATING TIMER / LONG-TERM TIMER
Manufacturer:
ATMEL Corporation
Datasheet: