Texas Instruments TMS570LC4357

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1987
SPNU563A–March 2018
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Enhanced Quadrature Encoder Pulse (eQEP) Module
34.3.15 eQEP Capture Control Register (QCAPCTL)
Figure 34-35. eQEP Capture Control Register (QCAPCTL) [offset = 2Eh]
15 14 7 6 4 3 0
CEN Reserved CCPS UPPS
R/W-0 R-0 R/W-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 34-18. eQEP Capture Control Register (QCAPCTL) Field Descriptions
Bits Name Value Description
15 CEN Enable eQEP capture.
0 eQEP capture unit is disabled.
1 eQEP capture unit is enabled.
14-7 Reserved 0 Always read as 0.
6-4 CCPS eQEP capture timer clock prescaler.
0 CAPCLK = VCLK3/1
1h CAPCLK = VCLK3/2
2h CAPCLK = VCLK3/4
3h CAPCLK = VCLK3/8
4h CAPCLK = VCLK3/16
5h CAPCLK = VCLK3/32
6h CAPCLK = VCLK3/64
7h CAPCLK = VCLK3/128
3-0 UPPS Unit position event prescaler.
0 UPEVNT = QCLK/1
1h UPEVNT = QCLK/2
2h UPEVNT = QCLK/4
3h UPEVNT = QCLK/8
4h UPEVNT = QCLK/16
5h UPEVNT = QCLK/32
6h UPEVNT = QCLK/64
7h UPEVNT = QCLK/128
8h UPEVNT = QCLK/256
9h UPEVNT = QCLK/512
Ah UPEVNT = QCLK/1024
Bh UPEVNT = QCLK/2048
Ch-Fh Reserved