MEMORY存储芯片TMS320DM368ZCE48中文规格书
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TMS320C6745, TMS320C6747
SPRS377F – SEPTEMBER 2008 – REVISED JUNE 2014
6.19 Enhanced Quadrat745/6747 device contains up to two enhanced quadrature encoder (eQEP) modules. See the TMS320C6745/C6747 DSP Peripherals Overview Reference Guide. (SPRUFK9) for more details.
Quadrature decoder (QDU)
PCSOUT
32
32
16
EQEPxAIN EQEPxBIN
EQEPxA/XCLK
EQEPxIIN EQEPxIOUT EQEPxIOE EQEPxSIN
EQEPxB/XDIR
GPIO MUX
EQEPxI
EQEPxSOUT EQEPxSOE
EQEPxS
QPOSCNT QPOSINIT QPOSMAX
Peripheral Information and Electrical Specifications 157
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Product Folder Links: TMS320C6745 TMS320C6747
QPOSCMP
QEINT QFRC QCLR QPOSCTL
Enhanced QEP (eQEP) Peripheral
Figure 6-43. eQEP Functional Block Diagram
Table 6-73 is the list of the EQEP registers. Table 6-74 shows the eQEP timing requirement and Table 6-75 shows the eQEP switching characteristics.
Action qualifier
(AQ)
EPWMA
CTR=ZERO CTR=CMPB
Disabled
Sync in/out control Mux
TBCTL[SYNCOSEL]
TBCTL[SWFSYNC] (software forced sync)
CTR = PRD CTR = ZERO CTR = CMPA CTR = CMPB
SYSCLK2
System control registers
EQEPxENCLK
To CPU
Interrupt Controller Data bus
16
QCTMRLAT QCPRDLAT
QCAPCTL 16
QCPRD QCTMR
16
Quadrature capture unit
(QCAP)
Registers used by multiple units QEPCTL QEPSTS QFLG
154 Peripheral Information and Electrical Specifications
Copyright © 2008–2014, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: TMS320C6745 TMS320C6747
TMS320C6745, TMS320C6747
SPRS377F – SEPTEMBER 2008 – REVISED JUNE 2014
Time−base (TB)
TBPRD shadow (16) TBPRD active (16)
CTR=PRD TBCTL[CNTLDE]
Counter up/down (16 bit)
EQEPxINT
16
QPOSLAT QPOSSLAT QPOSILAT
QUTMR QUPRD 32
QWDTMR QWDPRD
16
UTOUT UTIME
QWDOG
QDECCTL
16 WDTOUT
Position counter/ control unit (PCCU)
QCLK
QDIR
QI QS PHE
TBCNT active (16)
CTR=ZERO CTR_Dir
16
TBPHSHR (8) 8
Phase TBPHS active (24) control
Counter compare (CC)
CTR=CMPA
CMPAHR (8)
16
8
CMPA active (24) CMPA shadow (24)
PWM chopper
(PC)
CTR = ZERO
Trip zone (TZ)
EPWMxB EPWMxTZINT TZ
Figure 6-45. eHRPWM Sub-Modules Showing Critical Internal Signal Interconnections
Copyright © 2008–2014, Texas Instruments Incorporated
CTR_Dir
Event trigger
and interrupt
(ET)
HiRes PWM (HRPWM)
EPWMSYNCO EPWMSYNCI EPWMxINT EPWMxA
CTR=CMPB 16
CMPB active (16) CMPB shadow (16)
EPWMB
Dead band (DB)
SPRS377F – SEPTEMBER 2008 – REVISED JUNE 2014
6.19 Enhanced Quadrat745/6747 device contains up to two enhanced quadrature encoder (eQEP) modules. See the TMS320C6745/C6747 DSP Peripherals Overview Reference Guide. (SPRUFK9) for more details.
Quadrature decoder (QDU)
PCSOUT
32
32
16
EQEPxAIN EQEPxBIN
EQEPxA/XCLK
EQEPxIIN EQEPxIOUT EQEPxIOE EQEPxSIN
EQEPxB/XDIR
GPIO MUX
EQEPxI
EQEPxSOUT EQEPxSOE
EQEPxS
QPOSCNT QPOSINIT QPOSMAX
Peripheral Information and Electrical Specifications 157
Submit Documentation Feedback
Product Folder Links: TMS320C6745 TMS320C6747
QPOSCMP
QEINT QFRC QCLR QPOSCTL
Enhanced QEP (eQEP) Peripheral
Figure 6-43. eQEP Functional Block Diagram
Table 6-73 is the list of the EQEP registers. Table 6-74 shows the eQEP timing requirement and Table 6-75 shows the eQEP switching characteristics.
Action qualifier
(AQ)
EPWMA
CTR=ZERO CTR=CMPB
Disabled
Sync in/out control Mux
TBCTL[SYNCOSEL]
TBCTL[SWFSYNC] (software forced sync)
CTR = PRD CTR = ZERO CTR = CMPA CTR = CMPB
SYSCLK2
System control registers
EQEPxENCLK
To CPU
Interrupt Controller Data bus
16
QCTMRLAT QCPRDLAT
QCAPCTL 16
QCPRD QCTMR
16
Quadrature capture unit
(QCAP)
Registers used by multiple units QEPCTL QEPSTS QFLG
154 Peripheral Information and Electrical Specifications
Copyright © 2008–2014, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: TMS320C6745 TMS320C6747
TMS320C6745, TMS320C6747
SPRS377F – SEPTEMBER 2008 – REVISED JUNE 2014
Time−base (TB)
TBPRD shadow (16) TBPRD active (16)
CTR=PRD TBCTL[CNTLDE]
Counter up/down (16 bit)
EQEPxINT
16
QPOSLAT QPOSSLAT QPOSILAT
QUTMR QUPRD 32
QWDTMR QWDPRD
16
UTOUT UTIME
QWDOG
QDECCTL
16 WDTOUT
Position counter/ control unit (PCCU)
QCLK
QDIR
QI QS PHE
TBCNT active (16)
CTR=ZERO CTR_Dir
16
TBPHSHR (8) 8
Phase TBPHS active (24) control
Counter compare (CC)
CTR=CMPA
CMPAHR (8)
16
8
CMPA active (24) CMPA shadow (24)
PWM chopper
(PC)
CTR = ZERO
Trip zone (TZ)
EPWMxB EPWMxTZINT TZ
Figure 6-45. eHRPWM Sub-Modules Showing Critical Internal Signal Interconnections
Copyright © 2008–2014, Texas Instruments Incorporated
CTR_Dir
Event trigger
and interrupt
(ET)
HiRes PWM (HRPWM)
EPWMSYNCO EPWMSYNCI EPWMxINT EPWMxA
CTR=CMPB 16
CMPB active (16) CMPB shadow (16)
EPWMB
Dead band (DB)