TMS320DM643 datasheet(77/160 Pages) TI

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TMS320DM643

Video/Imaging Fixed-Point Digital Signal Processor

SPRS269A – FEBRUARY 2005 – REVISED APRIL 2005

Table 5-11. Switching Characteristics Over Recommended Operating Conditions During Reset

(1) (2) (3)

(see Figure 5-9)

–500

–600

NO.

PARAMETER

UNIT

MIN

MAX

td(RSTL-ECKI)

Delay time, RESET low to AECLKIN synchronized internally

3P + 20E

td(RSTH-ECKI)

Delay time, RESET high to AECLKIN synchronized internally

8P + 20E

td(RSTL-ECKO1HZ)

Delay time, RESET low to AECLKOUT1 high impedance

td(RSTH-ECKO1V)

Delay time, RESET high to AECLKOUT1 valid

8P + 20E

td(RSTL-EMIFZHZ)

Delay time, RESET low to EMIF Z high impedance

3P + 4E

td(RSTH-EMIFZV)

Delay time, RESET high to EMIF Z valid

16E

8P + 20E

td(RSTL-EMIFHIV)

Delay time, RESET low to EMIF high group invalid

td(RSTH-EMIFHV)

Delay time, RESET high to EMIF high group valid

8P + 20E

td(RSTL-EMIFLIV)

Delay time, RESET low to EMIF low group invalid

td(RSTH-EMIFLV)

Delay time, RESET high to EMIF low group valid

8P + 20E

td(RSTL-ZHZ)

Delay time, RESET low to Z group high impedance

td(RSTH-ZV)

Delay time, RESET high to Z group valid

(1)

P = 1/CPU clock frequency in ns. For example, when running parts at 600 MHz, use P = 1.67 ns.

(2)

E = the EMIF input clock (AECLKIN, CPU/4 clock, or CPU/6 clock) period in ns for EMIFA.

(3)

EMIF Z group consists of: AEA[22:3], AED[63:0], ACE[3:0], ABE[7:0], AARE/ASDCAS/ASADS/ASRE, AAWE/ASDWE/ASWE,

AAOE/ASDRAS/ASOE, ASOE3, ASDCKE, and APDT

EMIF high group consists of: AHOLDA (when the corresponding HOLD input is high)

EMIF low group consists of: ABUSREQ; AHOLDA (when the corresponding HOLD input is low)

Z group consists of: HD[31:0] and the muxed EMAC output pins, MDCLK, MDIO, CLKX0, FSX0, DX0, CLKR0, FSR0, TOUT0,

TOUT1, VDAC/GP0[8], GP0[13, 11, 10, 7:0], HR/W, HDS2, HDS1, HCS, HCNTL1, HAS, HCNTL0, HHWIL (16-bit HPI mode only),

HRDY, HINT, VP1D[19:0], and VP2D[19:0].

DM643 Peripheral Information and Electrical Specifications

TMS320DM643 датащи(PDF) 77 Page - Texas Instruments

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