ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 930

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

Specifications of ATSAM3U-EK

• Contents: Board
• Processor To Be Evaluated: SAM3U
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3 V
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: SAM3U4E
• Silicon Family Name: SAM3U
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM3U
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

38.7.32
Name:
Address:
Access:
This register acts as a double buffer for the CV and CVM values. This prevents an unexpected comparison x match.
Only the first 16 bits (channel counter size) of field CV
• CVUPD: Comparison x Value Update
Define the comparison x value to be compared with the counter of the channel 0.
• CVMUPD: Comparison x Value Mode Update
0 = The comparison x between the counter of the channel 0 and the comparison x value is performed when this counter is
incrementing.
1 = The comparison x between the counter of the channel 0 and the comparison x value is performed when this counter is
decrementing.
Note:
CAUTION: to be taken into account, the write of the register PWM_CMPVUPDx must be followed by a write of the register
PWM_CMPMUPDx.
930
930
31
23
15
–
7
This bit is useless if the counter of the channel 0 is left aligned (CALG = 0 in
SAM3U Series
SAM3U Series
PWM Comparison x Value Update Register
PWM_CMPVUPDx
0x4008C134 [0], 0x4008C144 [1], 0x4008C154 [2], 0x4008C164 [3], 0x4008C174 [4], 0x4008C184 [5],
0x4008C194 [6], 0x4008C1A4 [7]
Write-only
30
22
14
–
6
29
21
13
–
5
28
20
12
–
4
UPD
CVUPD
CVUPD
CVUPD
are significant.
27
19
11
–
3
“PWM Channel Mode Register” on page
26
18
10
–
2
25
17
–
9
1
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11
CVMUPD
24
16
933)
8
0