Texas Instruments TMS320 2833 Series

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429
SPRUI07–March 2020
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Enhanced Quadrature Encoder Pulse (eQEP)
6.10.2.14 QCAPCTL Register (Offset = 16h) [reset = 0h]
QCAPCTL is shown in Figure 6-34 and described in Table 6-19.
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Qaudrature Capture Control
Figure 6-34. QCAPCTL Register
15 14 13 12 11 10 9 8
CEN RESERVED
R/W-0h R-0h
7 6 5 4 3 2 1 0
RESERVED CCPS UPPS
R-0h R/W-0h R/W-0h
Table 6-19. QCAPCTL Register Field Descriptions
Bit Field Type Reset Description
15 CEN R/W 0h
Enable eQEP capture
Reset type: SYSRSn
0h (R/W) = eQEP capture unit is disabled
1h (R/W) = eQEP capture unit is enabled
14-7 RESERVED R 0h
Reserved
6-4 CCPS R/W 0h
eQEP capture timer clock prescaler
Reset type: SYSRSn
0h (R/W) = CAPCLK = SYSCLKOUT/1
1h (R/W) = CAPCLK = SYSCLKOUT/2
2h (R/W) = CAPCLK = SYSCLKOUT/4
3h (R/W) = CAPCLK = SYSCLKOUT/8
4h (R/W) = CAPCLK = SYSCLKOUT/16
5h (R/W) = CAPCLK = SYSCLKOUT/32
6h (R/W) = CAPCLK = SYSCLKOUT/64
7h (R/W) = CAPCLK = SYSCLKOUT/128
3-0 UPPS R/W 0h
Unit position event prescaler
Reset type: SYSRSn
0h (R/W) = UPEVNT = QCLK/1
1h (R/W) = UPEVNT = QCLK/2
2h (R/W) = UPEVNT = QCLK/4
3h (R/W) = UPEVNT = QCLK/8
4h (R/W) = UPEVNT = QCLK/16
5h (R/W) = UPEVNT = QCLK/32
6h (R/W) = UPEVNT = QCLK/64
7h (R/W) = UPEVNT = QCLK/128
8h (R/W) = UPEVNT = QCLK/256
9h (R/W) = UPEVNT = QCLK/512
Ah (R/W) = UPEVNT = QCLK/1024
Bh (R/W) = UPEVNT = QCLK/2048
Ch (R/W) = Reserved
Dh (R/W) = Reserved
Eh (R/W) = Reserved
Fh (R/W) = Reserved