ata6616 ATMEL Corporation, ata6616 Datasheet - Page 156

• Manufacturer Part Number: ata6616
• Description: Microcontroller With Lin Transceiver, 5v Regulator And Watchdog
• Manufacturer: ATMEL Corporation

156
ATA6616/ATA6617 [Preliminary]
Figure 4-55
Figure 4-55. Timer/Counter Timing Diagram, Setting of OCF1A/B, with Prescaler (f
Figure 4-56
frequency correct PWM mode the OCR1A/B Register is updated at BOTTOM. The timing dia-
grams will be the same, but TOP should be replaced by BOTTOM, TOP-1 by BOTTOM+1 and
so on. The same renaming applies for modes that set the TOV1 flag at BOTTOM.
Figure 4-56. Timer/Counter Timing Diagram, no Prescaling
(PC and PFC PWM)
and ICFn
(CTC and FPWM)
(Update at TOP)
TOVn
shows the same timing data, but with the prescaler enabled.
shows the count sequence close to TOP in various modes. When using phase and
TCNTn
OCRnx
OCFnx
(clk
TCNTn
TCNTn
OCRnx
as TOP)
(clk
clk
clk
clk
clk
I/O
I/O
(FPWM)
I/O
Tn
I/O
Tn
/8)
/1)
(if used
OCRnx - 1
TOP - 1
TOP - 1
Old OCRnx Value
OCRnx
OCRnx Value
TOP
TOP
DRAFT
OCRnx + 1
BOTTOM
TOP - 1
New OCRnx Value
OCRnx + 2
BOTTOM + 1
TOP - 2
9132A–AUTO–10/08
clk_I/O
/8)