AT90PWM1-16MU Atmel, AT90PWM1-16MU Datasheet - Page 155

• Manufacturer Part Number: AT90PWM1-16MU
• Description: IC AVR PWM 8KB FLASH 16MHZ 32QFN
• Manufacturer: Atmel
• Series: AVR® 90PWM Lightingr

Specifications of AT90PWM1-16MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 19
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 32-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

16.25.1
16.25.2
4378C–AVR–09/08
PSC 0 Synchro and Output Configuration – PSOC0
PSC 2 Synchro and Output Configuration – PSOC2
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
• Bit 7 – POS23 : PSCOUT23 Selection (PSC2 only)
When this bit is clear, PSCOUT23 outputs the waveform generated by Waveform Generator B.
When this bit is set, PSCOUT23 outputs the waveform generated by Waveform Generator A.
• Bit 6 – POS22 : PSCOUT22 Selection (PSC2 only)
When this bit is clear, PSCOUT22 outputs the waveform generated by Waveform Generator A.
When this bit is set, PSCOUT22 outputs the waveform generated by Waveform Generator B.
• Bit 5:4 – PSYNCn1:0: Synchronization Out for ADC Selection
Select the polarity and signal source for generating a signal which will be sent to the ADC for
synchronization.
Table 44. Synchronization Source Description in One/Two/Four Ramp Modes
Table 45. Synchronization Source Description in Centered Mode
• Bit 3 – POEN2D : PSCOUT23 Output Enable (PSC2 only)
When this bit is clear, second I/O pin affected to PSCOUT23 acts as a standard port.
When this bit is set, second I/O pin affected to PSCOUT23 is connected to the PSC waveform
generator B output and is set and clear according to the PSC operation.
PSYNCn1
0
0
1
1
PSYNCn1
0
0
1
1
PSYNCn0
0
1
0
1
PSYNCn0
0
1
0
1
POS23
R/W
R/W
7
0
7
0
-
POS22
R/W
R/W
6
0
6
0
-
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
Description
Send signal on leading edge of PSCOUTn0 (match with OCRnSA)
Send signal on trailing edge of PSCOUTn0 (match with OCRnRA or
fault/retrigger on part A)
Send signal on leading edge of PSCOUTn1 (match with OCRnSB)
Send signal on trailing edge of PSCOUTn1 (match with OCRnRB or
fault/retrigger on part B)
PSYNC01
PSYNC21
R/W
R/W
5
0
5
0
PSYNC00
PSYNC20
R/W
R/W
4
0
4
0
POEN2D
R/W
R/W
3
0
3
0
-
POEN0B
POEN2B
R/W
R/W
2
0
2
0
POEN2C
R/W
R/W
1
0
1
0
-
AT90PWM1
POEN0A
POEN2A
R/W
R/W
0
0
0
0
PSOC0
PSOC2
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