TNETV2840ENGGU datasheet(76/91 Pages) TI1

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Electrical Specifications

December 1999 − Revised October 2008

SPRS122F

5.9.2 McBSP0 General-Purpose I/O Timing

Table 5−11 and Table 5−12 assume testing over recommended operating conditions (see Figure 5−12).

Table 5−11. McBSP0 General-Purpose I/O Timing Requirements

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 x_BCLKR, x_BFSR, x_BDR, x_BCLKX, or x_BFSX when configured as a general-purpose input.

Table 5−12. McBSP0 General-Purpose I/O Switching Characteristics

PARAMETER

MIN

MAX

UNIT

td(COH-BGPIO)

Delay time, CLKOUT high to BGPIOx output mode‡

−8

‡ BGPIOx refers to x_BCLKR, x_BFSR, x_BCLKX, x_BFSX, or x_BDX 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 x_BCLKR, x_BFSR, x_BDR, x_BCLKX, or x_BFSX when configured as a general-purpose input.

‡ BGPIOx refers to x_BCLKR, x_BFSR, x_BCLKX, x_BFSX, or x_BDX when configured as a general-purpose output.

Figure 5−12. McBSP0 General-Purpose I/O Timings

TNETV2840ENGGU 数据表(PDF) 76 Page - Texas Instruments