AT90PWM2B-16SE ATMEL [ATMEL Corporation], AT90PWM2B-16SE Datasheet - Page 348
AT90PWM2B-16SE
Manufacturer Part Number
AT90PWM2B-16SE
Description
8-bit Microcontroller with 8K Bytes In-System Programmable Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT90PWM2B-16SE.pdf
(361 pages)
- Current page: 348 of 361
- Download datasheet (7Mb)
32. Errata
32.1
348
AT90PWM2&3 Rev. A (Mask Revision)
AT90PWM2/3/2B/3B
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1. PGM: PSCnRB Fuse
2. PSC: Prescaler
3. PSC: PAOCnA and PAOCnB Register Bits (Asynchronous output control)
4. PSC: PEVnA/B flag bits
PGM: PSCxRB Fuse
PSC: Prescaler
PSC: PAOCnA and PAOCnB Register Bits (Asynchronous output control)
PSC: PEVxA/B Flag Bits
PSC: Output Polarity in Centered Mode
PSC: Output Activity
VREF
DALI
DAC: Register Update
DAC: Output spikes
DAC driver: Output Voltage linearity
ADC: Conversion accuracy
Analog comparator: Offset value
Analog comparator: Output signal
PSC: Autolock modes
DALI: 17th bit detection
PSC: One ramp mode with PSC input mode 8
The use of PSCnRB fuse can make the parallel ISP fail.
Workaround:
When PSCnRB fuses are used, use the serial programming mode to load a new program
version.
The use of PSC's prescaler have the following effects :
It blocks the sample of PSC inputs until the two first cycles following the set of PSC run bit.
A fault is not properly transferred to other (slave) PSC.
Workaround:
Clear the prescaler PPREx bit when stopping the PSC (prun = 0), and set them to appropri-
ate value when starting the PSC (prun = 1), these bits are in the same PCTL register
Do not use the prescaler when a fault on one PSC should affect other PSC’s
These register bits are malfunctioning.
Workaround:
Do not use this feature.
These flags are set when a fault arises, but can also be set again during the fault itself.
Workaround:
Don't clear these flags before the fault disappears.
4317J–AVR–08/10
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