ata6616 ATMEL Corporation, ata6616 Datasheet - Page 125

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

9132A–AUTO–10/08
DRAFT
Table 4-31
rect PWM mode.
Table 4-31.
• Bit 5:2 – Res: Reserved Bits
These bits are reserved in the ATtiny167 and will always read as zero.
• Bit 6, 3 – WGM01:0: Waveform Generation Mode
These bits control the counting sequence of the counter, the source for the maximum (TOP)
counter value, and what type of waveform generation to be used, see
operation supported by the Timer/Counter unit are: Normal mode (Counter), Clear Timer on
Compare match (CTC) mode, and two types of Pulse Width Modulation (PWM) modes
”Modes of Operation” on page
Table 4-32.
Note:
Notes:
Mode
COM0A1
0
1
2
3
0
0
1
1
1. A special case occurs when OCR0A equals TOP and COM0A1 is set. In this case, the Com-
1. MAX = 0xFF
2. BOTTOM = 0x00
WGM01
(CTC0)
shows the COM01:0 bit functionality when the WGM01:0 bits are set to phase cor-
pare Match is ignored, but the set or clear is done at TOP. See
on page 119
0
0
1
1
Compare Output Mode, Phase Correct PWM Mode
Waveform Generation Mode Bit Description
COM0A0
0
1
0
1
WGM00
(PWM0)
for more details.
0
1
0
1
Description
Normal port operation, OC0A disconnected.
Clear OC0A on Compare Match when up-counting.
Set OC0A on Compare Match when down-counting.
Set OC0A on Compare Match when up-counting.
Clear OC0A on Compare Match when down-counting.
116.).
ATA6616/ATA6617 [Preliminary]
PWM, Phase Correct
Mode of Operation
Timer/Counter
Fast PWM
Normal
CTC
OCR0A
0xFF
0xFF
0xFF
TOP
(1)
“Phase Correct PWM Mode”
Update of
OCR0A at
Immediate
Immediate
TOP
TOP
Table
4-32. Modes of
Set on
TOV0 Flag
BOTTOM
MAX
MAX
MAX
(1)(2)
(See
125