Datasheet

31.8.21 Period Buffer Value
Name: PERB
Offset: 0x6C
Reset: 0xFFFFFFFF
Property: Write-Synchronized, Read-Synchronized
Bit 31 30 29 28 27 26 25 24
Access
Reset
Bit 23 22 21 20 19 18 17 16
PERB[17:10]
Access
R/W R/W R/W R/W R/W R/W R/W R/W
Reset 1 1 1 1 1 1 1 1
Bit 15 14 13 12 11 10 9 8
PERB[9:2]
Access
R/W R/W R/W R/W R/W R/W R/W R/W
Reset 1 1 1 1 1 1 1 1
Bit 7 6 5 4 3 2 1 0
PERB[1:0] DITHERB[5:0]
Access
R/W R/W R/W R/W R/W R/W R/W R/W
Reset 1 1 1 1 1 1 1 1
Bits 23:6 – PERB[17:0] Period Buffer Value
These bits hold the value of the period buffer register. The value is copied to PER register on UPDATE
condition.
Note: When the TCC is configured as 16-bit timer/counter, the excess bits are read zero.
Note: This bit field occupies the MSB of the register, [23:m]. m is dependent on the Resolution bit in the
Control A register (CTRLA.RESOLUTION):
CTRLA.RESOLUTION Bits [23:m]
0x0 - NONE 23:0
0x1 - DITH4 23:4
0x2 - DITH5 23:5
0x3 - DITH6 23:6 (depicted)
Bits 5:0 – DITHERB[5:0] Dithering Buffer Cycle Number
These bits represent the PER.DITHER bits buffer. When the double buffering is enabled, the value of this
bit field is copied to the PER.DITHER bits on an UPDATE condition.
Note: This bit field consists of the n LSB of the register. n is dependent on the value of the Resolution
bits in the Control A register (CTRLA.RESOLUTION):
SAM D21 Family
TCC – Timer/Counter for Control Applications
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 787