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TMS320VC5416 Datasheet(PDF) 28 Page - Texas Instruments |
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TMS320VC5416 Datasheet(HTML) 28 Page - Texas Instruments |
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28 / 98 page ![]() www.ti.com 3.7.2 HPI Nonmultiplexed Mode HPID[15:0] HAS HDS1, HDS2, HCS DMA PPD[15:0] DATA[15:0] Address[17:0] R/W Data Strobes READY HPI16 HRDY 54xx CPU VCC HCNTL0 HCNTL1 HR/W HINT HBIL HOST TMS320VC5416 Fixed-Point Digital Signal Processor SPRS095O – MARCH 1999 – REVISED JANUARY 2005 In nonmultiplexed mode, a host with separate address/data buses can access the HPI16 data register (HPID) via the HD 16-bit bidirectional data bus, and the address register (HPIA) via the 18-bit HA address bus. The host initiates the access with the strobe signals (HDS1, HDS2, HCS) and controls the direction of the access with the HR/W signal. The HPI16 can stall host accesses via the HRDY signal. Note that the HPIC register is not available in nonmultiplexed mode since there are no HCNTL signals available. All host accesses initiate a DMA read or write access. Figure 3-8 shows a block diagram of the HPI16 in nonmultiplexed mode. Figure 3-9 shows the HPI memory map. Figure 3-8. Host-Port Interface — Nonmulltiplexed Mode 28 Functional Overview |
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