Rainbow Electronics ATmega64C1 - Manual (Page 151)

151
7647A–AVR–02/08
ATmega32/64/M1/C1
• 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
.
14.16.3 PSC Output Compare SA Register – POCRnSAH and POCRnSAL
14.16.4 PSC Output Compare RA Register – POCRnRAH and POCRnRAL
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)
0 1
Send signal on trailing edge of PSCOUTnA(match with OCRnRA or
fault/retrigger on part A)
1 0 Send signal on leading edge of PSCOUTnB (match with OCRnSB)
1 1
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
0 0
Send signal on match with OCRnRA (during counting down of PSC). The
min value of OCRnRA must be 1.
0 1
Send signal on match with OCRnRA (during counting up of PSC). The
min value of OCRnRA must be 1.
1 0 no synchronization signal
1 1 no synchronization signal
Bit 7 6 5 4 3 2 1 0
– – – – POCRnSA[11:8] POCRnSAH
POCRnSA[7:0] POCRnSAL
Read/Write R/W R/W R/W R/W R/W R/W R/W R/W
Initial Value 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
– – – – POCRnRA[11:8] POCRnRAH
POCRnRA[7:0] POCRnRAL
Read/Write R/W R/W R/W R/W R/W R/W R/W R/W
Initial Value 0 0 0 0 0 0 0 0