TNETV2664FIBZWT datasheet(233/249 Pages) TI1

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VLYNQ_CLK

VLYNQ_TXD[3:0]

VLYNQ_RXD[3:0]

Data

TMS320C6424

www.ti.com

SPRS347D – MARCH 2007 – REVISED DECEMBER 2009

Table 6-86. Timing Requirements for Receive Data for the VLYNQ Module(1) (see Figure 6-46)

-7/-6/-5/-4

-L/-Q6/-Q5/-Q4

NO.

UNIT

MIN

MAX

RTM disabled, RTM sample = 3

1.75

Setup time, VLYNQ_RXD[3:0] valid before

tsu(RXDV-VCLKH)

VLYNQ_CLK high

RTM enabled

(1)

RTM disabled, RTM sample = 3

Hold time, VLYNQ_RXD[3:0] valid after

th(VCLKH-RXDV)

VLYNQ_CLK high

RTM enabled

(1)

The VLYNQ receive timing manager (RTM) is a serial receive logic designed to eliminate setup and hold violations that could occur in

traditional input signals. RTM logic automatically selects the setup and hold timing from one of eight data flops (see Table 6-87 ). When

RTM logic is disabled, the setup and hold timing from the default data flop (3) is used.

Table 6-87. RTM RX Data Flop Hold/Setup Timing

Constraints (Typical Values)

RX Data Flop

HOLD (Y)

SETUP (X)

1.3

0.9

1.4

0.7

1.5

-0.4

1.6

-0.6

1.8

-0.8

2.0

-1.0

2.2

-1.1

2.4

-1.2

Figure 6-46. VLYNQ Transmit/Receive Timing

Peripheral Information and Electrical Specifications

233

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