eQEP Registers
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1988
SPNU563A–March 2018
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Enhanced Quadrature Encoder Pulse (eQEP) Module
34.3.16 eQEP Interrupt Flag Register (QFLG)
Figure 34-36. eQEP Interrupt Flag Register (QFLG) [offset = 30h]
15 12 11 10 9 8
Reserved UTO IEL SEL PCM
R-0 R-0 R-0 R-0 R-0
7 6 5 4 3 2 1 0
PCR PCO PCU WTO QDC PHE PCE INT
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
LEGEND: R = Read only; -n = value after reset
Table 34-19. eQEP Interrupt Flag Register (QFLG) Field Descriptions
Bits Name Value Description
15-12 Reserved 0 Always read as 0.
11 UTO Unit time out interrupt flag.
0 No interrupt is generated.
1 Set by eQEP unit timer period match.
10 IEL Index event latch interrupt flag.
0 No interrupt is generated.
1 Set after latching the QPOSCNT to QPOSILAT.
9 SEL Strobe event latch interrupt flag.
0 No interrupt is generated.
1 Set after latching the QPOSCNT to QPOSSLAT.
8 PCM Position-compare match interrupt flag.
0 No interrupt is generated.
1 Set on position-compare match.
7 PCR Position-compare ready interrupt flag.
0 No interrupt is generated.
1 Set after transferring the shadow register value to the active position compare register.
6 PCO Position counter overflow interrupt flag.
0 No interrupt is generated.
1 Set on position counter overflow.
5 PCU Position counter underflow interrupt flag.
0 No interrupt is generated.
1 Set on position counter underflow.
4 WTO Watchdog time out interrupt flag.
0 No interrupt is generated.
1 Set by watchdog timeout.
3 QDC Quadrature direction change interrupt flag.
0 No interrupt is generated.
1 Set during change of direction.
2 PHE Quadrature phase error interrupt flag.
0 No interrupt is generated.
1 Set on simultaneous transition of QEPA and QEPB.
1 PCE Position counter error interrupt flag.
0 No interrupt is generated.
1 Position counter error.
0 INT Global interrupt status flag.
0 No interrupt is generated.
1 Interrupt was generated.
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