TMS320C6421 datasheet(8/223 Pages) TI

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TMS320C6421

Fixed-Point Digital Signal Processor

SPRS346C – JANUARY 2007 – REVISED NOVEMBER 2007

SEE

ADDITIONS/MODIFICATIONS/DELETIONS

Updated/Changed the values for the following parameters:

td(TURNAROUND) MIN/ MAX from "(TA + 1) * E - TBD"/ "(TA + 1)*E + TBD" to NOM "(TA + 1)*E"

tc(EMRCYCLE) (EW = 0) MIN/ MAX from "(RS + RST + RH) * E - TBD"/ "(RS + RST + RH) * E + TBD" to

NOM "(RS + RST + RH) * E"

tsu(EMCSL-EMOEL) (SS = 0) MIN/ MAX from "(RS + 1) * E - TBD"/ "(RS + 1) * E + TBD" to "(RS + 1) * E -

4"/ "(RS + 1) * E + 4"

tsu(EMCSL-EMOEL) (SS = 1) MIN/ MAX from "TBD" and "blank" to "-4"/ "4"

th(EMOEH-EMCSH) (SS = 0) MIN/ MAX from "(RH + 1) * E - TBD"/ "(RH + 1) * E + TBD" to "(RH + 1) * E -

4"/ "(RH + 1) * E + 4"

th(EMOEH-EMCSH) (SS = 1) MIN/ MAX from "TBD"/ "blank" to "-4"/ "4"

tsu(EMBAV-EMOEL) MIN/ MAX from "(RS + 1) * E - TBD"/ "(RS + 1) * E + TBD" to "(RS + 1) * E - 4"/ "(RS +

1) * E + 4"

th(EMOEH-EMBAIV) MIN/ MAX from "(RH + 1) * E - TBD"/ "(RH + 1) * E + TBD" to "(RH + 1) * E - 4"/ "(RH +

1) * E + 4"

tsu(EMBAV-EMOEL) (SS = 0) MIN/ MAX from "(RS + 1) * E - TBD"/ "(RS + 1) * E + TBD" to "(RS + 1) * E -

4"/ "(RS + 1) * E + 4"

th(EMOEH-EMBAIV) MIN/ MAX from "(RH + 1) * E - TBD"/ "(RH + 1) * E + TBD" to "(RH + 1) * E - 4"/ "(RH +

1) * E + 4"

tw(EMOEL) (EW = 0) MIN/ MAX from "(RST+ 1) * E - TBD"/ "(RST + 1)*E + TBD" to NOM "(RST + 1)*E"

td(EMWAITH-EMOEH) MAX from "4E + TBD" to "4E + 4"

tc(EMWCYCLE) (EW = 0) MIN/ MAX from "(RS + RST + RH) * E - TBD"/ "(RS + RST + RH) * E + TBD" to

NOM "(WS + WST + WH) * E"

tsu(EMCSL-EMWEL) (SS = 0) MIN/ MAX from "(WS + 1) * E - TBD"/ "(WS + 1) * E + TBD" to "(WS + 1) * E -

4"/ "(WS + 1) * E + 4"

tsu(EMCSL-EMWEL) (SS = 1) MIN/ MAX from "TBD"/ "blank" to "-4"/ "4"

th(EMWEH-EMCSH) (SS = 0) MIN/ MAX from "(WH + 1) * E - TBD"/ "(WH + 1) * E + TBD" to "(WH + 1) * E -

4"/ "(WH + 1) * E + 4"

th(EMWEH-EMCSH) (SS = 1) MIN/ MAX from "TBD"/ "blank" to "-4"/ "4"

tsu(EMRNW-EMWEL) MIN/ MAX from "(WS + 1) * E - TBD"/ "(WS + 1) * E + TBD" to "(WS + 1) * E - 4"/ "(WS

+ 1) * E + 4"

th(EMWEH-EMRNW) MIN/ MAX from "(WH + 1) * E - TBD"/ "(WH + 1) * E + TBD" to "(WH + 1) * E - 4"/ "(WH

+ 1) * E + 4"

tsu(EMBAV-EMWEL) MIN/ MAX from "(WS + 1) * E - TBD"/ "(WS + 1) * E + TBD" to "(WS + 1) * E - 4"/ "(WS

+ 1) * E + 4"

th(EMWEH-EMBAIV) MIN/ MAX from "(WH + 1) * E - TBD"/ "(WH + 1) * E + TBD" to "(WH + 1) * E - 4"/ "(WH

+ 1) * E + 4"

tsu(EMAV-EMWEL) MIN/ MAX from "(WS + 1) * E - TBD"/ "(WS + 1) * E + TBD" to "(WS + 1) * E - 4"/ "(WS +

1) * E + 4"

th(EMWEH-EMBAIV) MIN/ MAX from "(WH + 1) * E - TBD"/ "(WH + 1) * E + TBD" to "(WH + 1) * E - 4"/ "(WH

+ 1) * E + 4"

tw(EMWEL) (EW = 0) MIN/ MAX from "(WST + 1) * E - TBD"/ "(WST + 1) * E + TBD" to NOM "(WST + 1) *

td(EMWAITH-EMwEH) MAX from "4E + TBD" to "4E + 4"

tsu(EMDV-EMWEL) MIN/ MAX from "(WS + 1) * E - TBD"/ "(WS + 1) * E + TBD" to "(WS + 1) * E - 4"/ "(WS +

1) * E + 4"

th(EMWEH-EMDIV) MIN/ MAX from "(WH + 1) * E - TBD"/ "(WH + 1) * E + TBD" to "(WH + 1) * E - 4"/ "(WH

+ 1) * E + 4"

Section 6.9.4.1

Section 6.9.4.1, DDR2 Memory Controller Electrical Data/Timing

Table 6-27, Updated/Changed tc(DDR_CLK0) cycle time minimum value from "6ns" to "7.5 ns"

Revision History

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