Deserial – Serial Peripheral Interface (DSPI)
PXN20 Microcontroller Reference Manual, Rev. 1
30-14 Freescale Semiconductor
Table 30-6. DSPI SCK Duty Cycle
DBR CPHA PBR SCK Duty Cycle
0 any any 50/50
1 0 00 50/50
1 0 01 33/66
1 0 10 40/60
1 0 11 43/57
1 1 00 50/50
1 1 01 66/33
1 1 10 60/40
1 1 11 57/43
Table 30-7. DSPI Transfer Frame Size
FMSZ Framesize FMSZ Framesize
0000 Reserved 1000 9
0001 Reserved 1001 10
0010 Reserved 1010 11
0011 4 1011 12
0100 5 1100 13
0101 6 1101 14
0110 7 1110 15
0111 8 1111 16
Table 30-8. DSPI PCS to SCK Delay Scaler
CSSCK
PCS to SCK Delay
Scaler Value
CSSCK
PCS to SCK Delay
Scaler Value
0000 2 1000 512
0001 4 1001 1024
0010 8 1010 2048
0011 16 1011 4096
0100 32 1100 8192
0101 64 1101 16384
0110 128 1110 32768
0111 256 1111 65536
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