56853 datasheet(37/60 Pages) FREESCALE

Part #	56853

Description	16-bit Digital Signal Controllers

PDF	60 Pages

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Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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Host Interface Port

56853 Technical Data, Rev. 6

Freescale Semiconductor

Figure 4-17 Controller-to-Host DMA Read Mode

Access time

TRADV

—

4-18

4-19

Disable time

TRADX

—

4-18

4-19

Disable time

TRADZ

—

4-18

4-19

Setup time

TDACKS

—

4-20

Hold time

TACKDH

—

4-20

Setup time

TADSS

—

4-21

4-22

Hold time

TDSAH

—

4-21

4-22

Pulse width

TWDS

—

4-21

4-22

Time to re-assert

1. After second write in 16-bit mode

2. After first write in 16-bit mode

or after write in 8-bit mode

TACKREQL

4T + 5

5T + 9

4-17,

4-20

1. The formulas: T = clock cycle. f ipb = 60MHz, T = 16.7ns.

Table 4-9 Host Interface Port Timing1

Operating Conditions: VSS = VSSIO = VSSA = 0 V, VDD = 1.62-1.98V, VDDIO = VDDA = 3.0–3.6V, TA = –40° to +120°C, CL ≤ 50pF, fop = 120MHz

Characteristic

Symbol

Min

Max

Unit

See Figure

HACK

HREQ

TACKDV

TACKDZ

TREQACKL

TACKREQL

TACKREQH

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