TMS320VC5509 datasheet(96/122 Pages) TI

tên linh kiện	TMS320VC5509

Giải thích chi tiết về linh kiện	Fixed-Point Digital Signal Processor

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Electrical Specifications

April 2001 − Revised September 2004

SPRS163G

5.12 General-Purpose Input/Output (GPIOx) Timings

Table 5−21 and Table 5−22 assume testing over recommended operating conditions (see Figure 5−20).

Table 5−21. GPIO Pins Configured as Inputs Timing Requirements

NO.

MIN

MAX

UNIT

GPIO

tsu(GPIO-COH)

Setup time, IOx input valid before CLKOUT high

AGPIO†

tsu(GPIO-COH)

Setup time, IOx input valid before CLKOUT high

EHPIGPIO‡

GPIO

th(COH-GPIO)

Hold time, IOx input valid after CLKOUT high

AGPIO†

h(COH-GPIO)

EHPIGPIO‡

† AGPIO pins: A[15:0]

‡ EHPIGPIO pins: C13, C10, C7, C5, C4, and C0

Table 5−22. GPIO Pins Configured as Outputs Switching Characteristics

NO.

PARAMETER

MIN

MAX

UNIT

GPIO

td(COH-GPIO)

Delay time, CLKOUT high to IOx output change

AGPIO†

d(COH-GPIO)

EHPIGPIO‡

† AGPIO pins: A[15:0]

‡ EHPIGPIO pins: C13, C10, C7, C5, C4, and C0

CLKOUT†

IOx

Input Mode

IOx

Output Mode

† CLKOUT reflects the CPU clock.

Figure 5−20. General-Purpose Input/Output (IOx) Signal Timings

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