TMS320UC5409 datasheet(63/81 Pages) TI1

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TMS320UC5409

FIXEDPOINT DIGITAL SIGNAL PROCESSOR

SPRS101E − APRIL 1999 − REVISED OCTOBER 2008

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251−1443

multichannel buffered serial port timing (continued)

timing requirements for McBSP general-purpose I/O (see Figure 33)

MIN

MAX

UNIT

tsu(BGPIO-COH)

Setup time, BGPIOx input mode before CLKOUT high†

th(COH-BGPIO)

Hold time, BGPIOx input mode after CLKOUT high†

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

switching characteristics for McBSP general-purpose I/O (see Figure 33)

PARAMETER

MIN

MAX

UNIT

td(COH-BGPIO)

Delay time, CLKOUT high to BGPIOx output mode‡

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

tsu(BGPIO-COH)

th(COH-BGPIO)

td(COH-BGPIO)

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 33. McBSP General-Purpose I/O Timings

Not Recommended For New Designs

TMS320UC5409 Datasheet(PDF) 63 Page - Texas Instruments