Eqep Position-Compare Control (Qposctl) Register; Eqep Position-Compare Control (Qposctl) Register Field Descriptions - Texas Instruments Concerto F28M35 Series Technical Reference Manual

www.ti.com
Table 9-4. eQEP Control (QEPCTL) Register Field Descriptions (continued)
Bits Name
3 QPEN
2 QCLM
1 UTE
0 WDE
Figure 9-23. eQEP Position-compare Control (QPOSCTL) Register
15 14
PCSHDW PCLOAD
R/W-0 R/W-0
7
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 9-5. eQEP Position-compare Control (QPOSCTL) Register Field Descriptions
Bit Name
15 PCSHDW
14 PCLOAD
13 PCPOL
12 PCE
11-0 PCSPW
SPRUH22I – April 2012 – Revised November 2019
Submit Documentation Feedback
Value Description
Quadrature position counter enable/software reset
0 Reset the eQEP peripheral internal operating flags/read-only registers. Control/configuration
registers are not disturbed by a software reset.
1 eQEP position counter is enabled
eQEP capture latch mode
0 Latch on position counter read by CPU. Capture timer and capture period values are latched
into QCTMRLAT and QCPRDLAT registers when CPU reads the QPOSCNT register.
1 Latch on unit time out. Position counter, capture timer and capture period values are latched
into QPOSLAT, QCTMRLAT and QCPRDLAT registers on unit time out.
eQEP unit timer enable
0 Disable eQEP unit timer
1 Enable unit timer
eQEP watchdog enable
0 Disable the eQEP watchdog timer
1 Enable the eQEP watchdog timer
13 12
PCPOL PCE
R/W-0 R/W-0
PCSPW
Description
Position-compare shadow enable
0 Shadow disabled, load Immediate
1 Shadow enabled
Position-compare shadow load mode
0 Load on QPOSCNT = 0
1 Load when QPOSCNT = QPOSCMP
Polarity of sync output
0 Active HIGH pulse output
1 Active LOW pulse output
Position-compare enable/disable
0 Disable position compare unit
1 Enable position compare unit
Select-position-compare sync output pulse width
0x000 1 * 4 * SYSCLKOUT cycles
0x001 2 * 4 * SYSCLKOUT cycles
0xFFF 4096 * 4 * SYSCLKOUT cycles
Copyright © 2012–2019, Texas Instruments Incorporated
11
R/W-0
C28 Enhanced QEP (eQEP) Module
eQEP Registers
8
PCSPW
R/W-0
0
843