Texas Instruments - TMS320C6457

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Contents

TMS320C6457 DSP Host Port Interface HPI User s Guide Literature Number SPRUGK7A March 2009 Revised July 2010 Copyright 2009 2010 Texas Instruments Incorporated Ju Texas Instruments Preface 6 1 Introduction to the HPI 7 1 1 Summary of the HPI Registers 8 1 2 Summary of the HPI Signals 9 2 Using the Address Registers 11 2 1 Single HPIA Mode 11 2 2 Dual HPIA Mode 11 3 HPI Operation 12 3 1 Host HPI Signal Connections 12 3 2 HPI Configuration and Data Flow 14 3 3 HUS2 HDS1 and HCS Data Strobing and Chip Selection 15 3 4 HCNTL 1 0 and HR W Indicating the Cycle Type 16 3 5 HHWIL Identifying the First and Second Halfwords in 16 Bit Multiplexed Mode 17 3 6 HAS Forcing the HPI to Latch Control Information ...