Atmel ATmega32M1 Manual page 152

14.16.2 PSC Synchro Configuration – PSYNC
Atmel ATmega16/32/64/M1/C1
152
Bit 7
-
Read/Write R/W
Initial Value 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
0 0
0 1
1 0
1 1
Table 14-9. Synchronization Source Description in Centered Mode
PSYNCn1 PSYNCn0
0 0
0 1
1 0
1 1
6 5 4
- PSYNC21 PSYNC20
R/W R/W R/W
0 0 0
Description
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)
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)
Description
Send signal on match with OCRnRA (during counting down of PSC).
The min value of OCRnRA must be 1.
Send signal on match with OCRnRA (during counting up of PSC). The
min value of OCRnRA must be 1.
no synchronization signal
no synchronization signal
3 2 1
PSYNC11 PSYNC10 PSYNC01
R/W R/W R/W
0 0 0
0
PSYNC00 PSYNC
R/W
0
7647H–AVR–03/12