at90pwm81-16se ATMEL Corporation, at90pwm81-16se Datasheet - Page 175

• Manufacturer Part Number: at90pwm81-16se
• Description: 8-bit Avr Microcontroller With 8k Bytes In- System Programmable Flash
• Manufacturer: ATMEL Corporation

14.23.8
14.23.9
7734M–AVR–03/10
PSCR Input A Control Register – PFRC0A
PSCR Input B Control Register – PFRC0B
• Bit 5- PBFM01: Balance Flank Width Modulation, bit 1
Defines the Flank Width Modulation, together with PBFM00 bit.
Table 14-13.
1.
• Bit 4 – PAOC0B : PSCR Asynchronous Output Control B
When this bit is set, Fault input selected to block B can act directly to PSCOUT01 output. See
Section “PSCR Input Configuration”, page 159.
• Bit 3 – PAOC0A : PSCR Asynchronous Output Control A
When this bit is set, Fault input selected to block A can act directly to PSCOUT00 output. See
Section “PSCR Input Configuration”, page 159.
• Bit 2- PBFM00: Balance Flank Width Modulation, bit 0
Defines the Flank Width Modulation, together with PBFM01 bit
• Bit 1 – PCCYC0 : PSCR Complete Cycle
When this bit is set, the PSCR completes the entire waveform cycle before halt operation requested by
clearing PRUN0. This bit is not relevant in slave mode (PARUN0 = 1).
• Bit 0 – PRUN0 : PSCR Run
Writing this bit to one starts the PSCR.
When set, this bit prevails over PARUN0 bit.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
PBFM01
0
0
1
1
Note: In one ramp mode, changing SA or SA+SB also affect On-Time ; see PSCr0 & PSCr1 Basic Wave-
forms in One Ramp mode
7
PCAE0A
R/W
0
7
PCAE0B
R/W
0
Flank Width Mode Selection
PBFM00
0
1
0
1
6
PISEL0A0 PELEV0A
R/W
0
6
PISEL0B0 PELEV0B
R/W
0
5
R/W
0
5
R/W
0
Description
Flank Width Modulation operates on RB (On-Time 1 only).
Flank Width Modulation operates on RB + RA (On-Time 0 and On-Time
1).
Flank Width Modulation operates on SB (Dead-Time 1 only)
Flank Width Modulation operates on SB +SA (Dead-Time 0 and Dead-
Time 1).
4
PFLTE0A
R/W
0
4
PFLTE0B
R/W
0
3
PRFM0A3 PRFM0A2 PRFM0A1 PRFM0A0 PFRC0A
R/W
0
3
PRFM0B3 PRFM0B2 PRFM0B1 PRFM0B0 PFRC0B
R/W
0
2
R/W
0
2
R/W
0
1
R/W
0
1
R/W
0
AT90PWM81
0
R/W
0
0
R/W
0
(1)
.
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