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TMS570LS3137 データシート(PDF) 131 Page - Texas Instruments |
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TMS570LS3137 データシート(HTML) 131 Page - Texas Instruments |
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131 / 159 page  TMS570LS3137 www.ti.com SPNS162. – SEPTEMBER 2011 5.4.7 High-End Timer Transfer Unit (HET-TU) A High End Timer Transfer Unit (HET-TU) can perform DMA type transactions to transfer N2HET data to or from main memory. A Memory Protection Unit (MPU) is built into the HET-TU. 5.4.7.1 Features • CPU and DMA independent • Master Port to access system memory • 8 control packets supporting dual buffer configuration • Control packet information is stored in RAM protected by parity • Event synchronization (HET transfer requests) • Supports 32 or 64 bit transactions • Addressing modes for HET address (8 byte or 16 byte) and system memory address (fixed, 32 bit or 64bit) • One shot, circular and auto switch buffer transfer modes • Request lost detection 5.4.7.2 Trigger Connections Table 5-13. HET TU1 Request Line Connection Modules Request Source HET TU1 Request N2HET1 HTUREQ[0] HET TU1 DCP[0] N2HET1 HTUREQ[1] HET TU1 DCP[1] N2HET1 HTUREQ[2] HET TU1 DCP[2] N2HET1 HTUREQ[3] HET TU1 DCP[3] N2HET1 HTUREQ[4] HET TU1 DCP[4] N2HET1 HTUREQ[5] HET TU1 DCP[5] N2HET1 HTUREQ[6] HET TU1 DCP[6] N2HET1 HTUREQ[7] HET TU1 DCP[7] Table 5-14. HET TU2 Request Line Connection Modules Request Source HET TU2 Request N2HET2 HTUREQ[0] HET TU2 DCP[0] N2HET2 HTUREQ[1] HET TU2 DCP[1] N2HET2 HTUREQ[2] HET TU2 DCP[2] N2HET2 HTUREQ[3] HET TU2 DCP[3] N2HET2 HTUREQ[4] HET TU2 DCP[4] N2HET2 HTUREQ[5] HET TU2 DCP[5] N2HET2 HTUREQ[6] HET TU2 DCP[6] N2HET2 HTUREQ[7] HET TU2 DCP[7] Copyright © 2011, Texas Instruments Incorporated Peripheral Information and Electrical Specifications 131 Submit Documentation Feedback focus.ti.com: TMS570LS3137 |
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