PDBx_SC field descriptions (continued)
Field Description
0 PDB sequence error interrupt disabled.
1 PDB sequence error interrupt enabled.
16
SWTRIG
Software Trigger
When PDB is enabled and the software trigger is selected as the trigger input source, writing 1 to this field
resets and restarts the counter. Writing 0 to this field has no effect. Reading this field results 0.
15
DMAEN
DMA Enable
When DMA is enabled, the PDBIF flag generates a DMA request instead of an interrupt.
0 DMA disabled.
1 DMA enabled.
14–12
PRESCALER
Prescaler Divider Select
000 Counting uses the peripheral clock divided by multiplication factor selected by MULT.
001 Counting uses the peripheral clock divided by twice of the multiplication factor selected by MULT.
010 Counting uses the peripheral clock divided by four times of the multiplication factor selected by
MULT.
011 Counting uses the peripheral clock divided by eight times of the multiplication factor selected by
MULT.
100 Counting uses the peripheral clock divided by 16 times of the multiplication factor selected by
MULT.
101 Counting uses the peripheral clock divided by 32 times of the multiplication factor selected by
MULT.
110 Counting uses the peripheral clock divided by 64 times of the multiplication factor selected by
MULT.
111 Counting uses the peripheral clock divided by 128 times of the multiplication factor selected by
MULT.
11–8
TRGSEL
Trigger Input Source Select
Selects the trigger input source for the PDB. The trigger input source can be internal or external (EXTRG
pin), or the software trigger. Refer to chip configuration details for the actual PDB input trigger
connections.
0000 Trigger-In 0 is selected.
0001 Trigger-In 1 is selected.
0010 Trigger-In 2 is selected.
0011 Trigger-In 3 is selected.
0100 Trigger-In 4 is selected.
0101 Trigger-In 5 is selected.
0110 Trigger-In 6 is selected.
0111 Trigger-In 7 is selected.
1000 Trigger-In 8 is selected.
1001 Trigger-In 9 is selected.
1010 Trigger-In 10 is selected.
1011 Trigger-In 11 is selected.
1100 Trigger-In 12 is selected.
1101 Trigger-In 13 is selected.
1110 Trigger-In 14 is selected.
1111 Software trigger is selected.
Table continues on the next page...
Memory map and register definition
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
874 NXP Semiconductors
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