mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 745

• Manufacturer Part Number: mcf51jf128
• Description: Mcf51jf128 Reference Manual
• Manufacturer: Freescale Semiconductor, Inc

33.4.6 Interrupts
PDB can generate two interrupts, PDB interrupt and PDB sequence error interrupt. The
following table summarizes the interrupts.
33.4.7 DMA
If SC[DMAEN] is set, PDB can generate DMA transfer request when SC[PDBIF] is set.
When DMA is enabled, the PDB interrupt will not be issued.
33.5 Application Information
33.5.1 Impact of Using the Prescaler and Multiplication Factor on
Use of prescaler and multiplication factor greater than 1 limits the count/delay accuracy
in terms of peripheral clock cycles (to the modulus of the prescaler X multiplication
factor). If the multiplication factor is set to 1 and the prescaler is set to 2 then the only
Freescale Semiconductor, Inc.
PDB Counter
SC[LDOK]
Ch n pre-trigger 0
Ch n pre-trigger 1
Timing Resolution
CHnDLY1
CHnDLY0
PDB Sequence Error Interrupt
PDB Interrupt
Figure 33-45. Registers Update with SC[LDMOD] = x1
Interrupt
MCF51JF128 Reference Manual, Rev. 2, 03/2011
Table 33-45. PDB Interrupt Summary
Preliminary
CHnS[ERRm]
SC[PDBIF]
Flags
Chapter 33 Programmable Delay Block (PDB)
SC[PDBIE] = 1 and
SC[DMAEN] = 0
SC[PDBEIE] = 1
Enable Bit
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