14.16.2 PSC Synchro Configuration – PSYNC
Bit
7
-
6
-
5
PSYNC21
R/W
4
PSYNC20
R/W
3
PSYNC11
R/W
2
PSYNC10
R/W
1
PSYNC01
R/W
0
PSYNC00
R/W
PSYNC
Read/Write
Initial Value
R/W
0
R/W
0
0
0
0
0
0
0
• Bit 7 – not use
not use
• Bit 6 – not use
not use
• Bit 5:4 – PSYNC21:0: Synchronization Out for ADC Selection
Select the polarity and signal source for generating a signal which will be sent from module 2 to
the ADC for synchronization
• Bit 3:2 – PSYNC11:0: Synchronization Out for ADC Selection
Select the polarity and signal source for generating a signal which will be sent from module 1 to
the ADC for synchronization
• Bit 1:0 – PSYNC01:0: Synchronization Out for ADC Selection
Select the polarity and signal source for generating a signal which will be sent from module 0 to
the ADC for synchronization.
Table 14-8. Synchronization Source Description in One Ramp Mode
PSYNCn1
PSYNCn0
Description
0
0
Send signal on leading edge of PSCOUTnA(match with OCRnSA)
Send signal on trailing edge of PSCOUTnA(match with OCRnRA or
fault/retrigger on part A)
0
1
1
1
0
1
Send signal on leading edge of PSCOUTnB (match with OCRnSB)
Send signal on trailing edge of PSCOUTnB (match with OCRnRB or
fault/retrigger on part B)
Table 14-9. Synchronization Source Description in Centered Mode
PSYNCn1
PSYNCn0
Description
Send signal on match with OCRnRA (during counting down of PSC). The
min value of OCRnRA must be 1.
0
0
Send signal on match with OCRnRA (during counting up of PSC). The
min value of OCRnRA must be 1.
0
1
1
1
0
1
no synchronization signal
no synchronization signal
152
ATmega16/32/64/M1/C1
7647F–AVR–04/09
ATMEL [ ATMEL ]
