Datasheet

Note that the QEI module clock must be enabled before the registers can be programmed (see
page 406). There must be a delay of 3 system clocks after the QEI module clock is enabled before
any QEI module registers are accessed.
Table 27-2. QEI Register Map
See
page
DescriptionResetTypeNameOffset
1879QEI Control0x0000.0000RWQEICTL0x000
1882QEI Status0x0000.0000ROQEISTAT0x004
1883QEI Position0x0000.0000RWQEIPOS0x008
1884QEI Maximum Position0x0000.0000RWQEIMAXPOS0x00C
1885QEI Timer Load0x0000.0000RWQEILOAD0x010
1886QEI Timer0x0000.0000ROQEITIME0x014
1887QEI Velocity Counter0x0000.0000ROQEICOUNT0x018
1888QEI Velocity0x0000.0000ROQEISPEED0x01C
1889QEI Interrupt Enable0x0000.0000RWQEIINTEN0x020
1891QEI Raw Interrupt Status0x0000.0000ROQEIRIS0x024
1893QEI Interrupt Status and Clear0x0000.0000RW1CQEIISC0x028
27.6 Register Descriptions
The remainder of this section lists and describes the QEI registers, in numerical order by address
offset.
June 18, 20141878
Texas Instruments-Production Data
Quadrature Encoder Interface (QEI)