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TMS320C6421_0711 Datasheet, PDF (8/223 Pages) Texas Instruments – Fixed-Point Digital Signal Processor
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TMS320C6421
Fixed-Point Digital Signal Processor
SPRS346C – JANUARY 2007 – REVISED NOVEMBER 2007
www.ti.com
SEE
Section 6.9.4.1
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) *
E"
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, DDR2 Memory Controller Electrical Data/Timing
Table 6-27, Updated/Changed tc(DDR_CLK0) cycle time minimum value from "6ns" to "7.5 ns"
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