TNETV1002IDZHK datasheet(77/102 Pages) TI1

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Electrical Specifications

June 2001 -- Revised December 2002

SPRS180C

6.11.2

McBSP General-Purpose Timings

Table 6--18 and Table 6--19 assume testing over recommended operating conditions (see Figure 6--18).

Table 6--18. McBSP General-Purpose Timing Requirements

MIN

MAX

UNIT

tsu(BGPIO-COH)

Setup time, BGPIOx input mode before DSP_CLKOUT high†

th(COH-BGPIO)

Hold time, BGPIOx input mode after DSP_CLKOUT high†

† BGPIOx refers to BCLKRx, BFSRx, BDRx, BCLKXx, or BFSXx when configured as a general-purpose input.

Table 6--19. McBSP General-Purpose Switching Characteristics

PARAMETER

MIN

MAX

UNIT

td(COH-BGPIO)

Delay time, DSP_CLKOUT high to BGPIOx output mode‡

--10

‡ BGPIOx refers to BCLKRx, BFSRx, BCLKXx, BFSXx, or BDXx when configured as a general-purpose output.

NOTE: Only the DSP subsystem can access the McBSPs as GPIOs; they are not available to the ARM subsystem.

tsu(BGPIO-COH)

th(COH-BGPIO)

td(COH-BGPIO)

DSP_CLKOUT

BGPIOx Input

Mode†

BGPIOx Output

Mode‡

† BGPIOx refers to BCLKRx, BFSRx, BDRx, BCLKXx, or BFSXx when configured as a general-purpose input.

‡ BGPIOx refers to BCLKRx, BFSRx, BCLKXx, BFSXx, or BDXx when configured as a general-purpose output.

Figure 6--18. McBSP General-Purpose I/O Timings

TNETV1002IDZHK Datasheet(PDF) 77 Page - Texas Instruments