Note that the QEI module clock must be enabled before the registers can be programmed (see
page 399). There must be a delay of 3 system clocks after the QEI module clock is enabled before
any QEI module registers are accessed.
Table 24-2. QEI Register Map
See
page
DescriptionResetTypeNameOffset
1755QEI Control0x0000.0000RWQEICTL0x000
1758QEI Status0x0000.0000ROQEISTAT0x004
1759QEI Position0x0000.0000RWQEIPOS0x008
1760QEI Maximum Position0x0000.0000RWQEIMAXPOS0x00C
1761QEI Timer Load0x0000.0000RWQEILOAD0x010
1762QEI Timer0x0000.0000ROQEITIME0x014
1763QEI Velocity Counter0x0000.0000ROQEICOUNT0x018
1764QEI Velocity0x0000.0000ROQEISPEED0x01C
1765QEI Interrupt Enable0x0000.0000RWQEIINTEN0x020
1767QEI Raw Interrupt Status0x0000.0000ROQEIRIS0x024
1769QEI Interrupt Status and Clear0x0000.0000RW1CQEIISC0x028
24.6 Register Descriptions
The remainder of this section lists and describes the QEI registers, in numerical order by address
offset.
June 18, 20141754
Texas Instruments-Production Data
Quadrature Encoder Interface (QEI)
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