Eqep Capture Control (Qcapctl) Register; Eqep Position Counter (Qposcnt) Register; Eqep Position Counter Initialization (Qposinit) Register; Eqep Capture Control (Qcapctl) Register Field Descriptions - Texas Instruments Concerto F28M36 Series Technical Reference Manual

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15 14
CEN
R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 9-6. eQEP Capture Control (QCAPCTL) Register Field Descriptions
Bits Name
15 CEN
14-7 Reserved
6-4 CCPS
3-0 UPPS
31
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 9-7. eQEP Position Counter (QPOSCNT) Register Field Descriptions
Bits Name
31-0 QPOSCNT
Figure 9-26. eQEP Position Counter Initialization (QPOSINIT) Register
31
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
SPRUHE8E – October 2012 – Revised November 2019
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Figure 9-24. eQEP Capture Control (QCAPCTL) Register
Reserved
R-0
Description
Enable eQEP capture
0 eQEP capture unit is disabled
1 eQEP capture unit is enabled
Always write as 0
eQEP capture timer clock prescaler
000 CAPCLK = SYSCLKOUT/1
001 CAPCLK = SYSCLKOUT/2
010 CAPCLK = SYSCLKOUT/4
011 CAPCLK = SYSCLKOUT/8
100 CAPCLK = SYSCLKOUT/16
101 CAPCLK = SYSCLKOUT/32
110 CAPCLK = SYSCLKOUT/64
111 CAPCLK = SYSCLKOUT/128
Unit position event prescaler
0000 UPEVNT = QCLK/1
0001 UPEVNT = QCLK/2
0010 UPEVNT = QCLK/4
0011 UPEVNT = QCLK/8
0100 UPEVNT = QCLK/16
0101 UPEVNT = QCLK/32
0110 UPEVNT = QCLK/64
0111 UPEVNT = QCLK/128
1000 UPEVNT = QCLK/256
1001 UPEVNT = QCLK/512
1010 UPEVNT = QCLK/1024
1011 UPEVNT = QCLK/2048
11xx Reserved
Figure 9-25. eQEP Position Counter (QPOSCNT) Register
QPOSCNT
R/W-0
Description
This 32-bit position counter register counts up/down on every eQEP pulse based on direction
input. This counter acts as a position integrator whose count value is proportional to position
from a give reference point.
QPOSINIT
R/W-0
Copyright © 2012–2019, Texas Instruments Incorporated
7 6 4
CCPS
R/W-0
C28 Enhanced QEP (eQEP) Module
eQEP Registers
3 0
UPPS
R/W-0
0
0
881