TMP320C6720RFP300 datasheet(64/118 Pages) TI

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4.12.3 UHPI Electrical Data/Timing

4.12.3.1 Universal Host-Port Interface (UHPI) Read and Write Timing

TMS320C6727B, TMS320C6726B, TMS320C6722B, TMS320C6720

Floating-Point Digital Signal Processors

SPRS370E – SEPTEMBER 2006 – REVISED JULY 2008

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Table 4-17 and Table 4-18 assume testing over recommended operating conditions (see Figure 4-21

through Figure 4-24).

Table 4-17. UHPI Read and Write Timing Requirements(1)(2)

NO.

MIN

MAX

UNIT

tsu(HASL-DSL)

Setup time, UHPI_HAS low before DS falling edge

th(DSL-HASL)

Hold time, UHPI_HAS low after DS falling edge

tsu(HAD-HASL)

Setup time, HAD valid before UHPI_HAS falling edge

th(HASL-HAD)

Hold time, HAD valid after UHPI_HAS falling edge

tw(DSL)

Pulse duration, DS low

tw(DSH)

Pulse duration, DS high

tsu(HAD-DSL)

Setup time, HAD valid before DS falling edge

th(DSL-HAD)

Hold time, HAD valid after DS falling edge

tsu(HD-DSH)

Setup time, HD valid before DS rising edge

th(DSH-HD)

Hold time, HD valid after DS rising edge

tsu(HCSL-DSL)

Setup time, UHPI_HCS low before DS falling edge

th(HRDYL-DSH)

Hold time, DS high after UHPI_HRDY falling edge

(1)

P = SYSCLK2 period

(2)

DS refers to HSTROBE. HD refers to UHPI_HD[31:0]. HDS refers to UHPI_HDS[1] or UHPI_HDS[2]. HAD refers to UHPI_HCNTL[0],

UHPI_HCNTL[1], UHPI_HHWIL, and UHPI_HRW.

Peripheral and Electrical Specifications

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