SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 922

• Manufacturer Part Number: SAM4S16C
• Manufacturer: Atmel Corporation

Specifications of SAM4S16C

• Flash (kbytes): 1024 Kbytes
• Pin Count: 100
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 79
• Ext Interrupts: 79
• Usb Transceiver: 1
• Quadrature Decoder Channels: 2
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 3
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 16
• Adc Resolution (bits): 12
• Adc Speed (ksps): 1000
• Analog Comparators: 1
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 12
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 128
• 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: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

36.6.5.5
922
922
SAM4S
SAM4S
Changing the Comparison Value and the Comparison Configuration
Figure 36-18. Synchronized Update of Update Period Value of Synchronous Channels
It is possible to change the comparison values and the comparison configurations while the
channel 0 is enabled (see
To prevent unexpected comparison match, the user must use the
Update Register”
and PWM_CMPMUPDx) to change respectively the comparison values and the comparison
configurations while the channel 0 is still enabled. These registers hold the new values until the
end of the comparison update period (when CUPRCNT is equal to CUPR in
x Mode Register”
ues for the next period.
CAUTION: to be taken into account, the write of the register PWM_CMPVUPDx must be fol-
lowed by a write of the register PWM_CMPMUPDx.
Note:
If the update registers PWM_CMPVUPDx and PWM_CMPMUPDx are written several times
between two updates, only the last written value are taken into account.
(PWM_CMPMx) and the end of the current PWM period, then update the val-
and the
End of PWM period and
end of Update Period
of Synchronous Channels
Section 36.6.3 “PWM Comparison
“PWM Comparison x Mode Update Register”
PWM_SCUPUPD Value
User's Writing
PWM_SCUP
Units”).
“PWM Comparison x Value
(PWM_CMPVUPDx
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
“PWM Comparison