ATSAM3703 datasheet(19/36 Pages) ATMEL

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6237A–DRMSD–29-May-06

ATSAM3703

Peripherals and Timings

9.1

Slave 8-bit Parallel Interface

Pins used: D7-D0 (I/O), CS (input), A0 (input), WR (input), RD (input), IRQ (output)

This interface is typically used to connect the chip to a host processor.

9.1.1

Timings

Figure 9-1.

Host Interface Read Cycle

Figure 9-2.

Host Interface Write Cycle

Table 9-1.

Timing Parameters

Symbol

Parameter

Min

Typ

Max

Unit

AVCS

Address valid to chip select low

tCSLRDL

Chip select low to RD low

RDHCSH

RD high to CS high

PRD

RD pulse width

tRDLDV

Data out valid from RD

--20

DRH

Data out hold from RD

1.7

tCSLWRL

Chip select low to WR low

tWRHCSH

WR high to CS high

D0-D7

t AVCS

t CSLRDL

t PRD

t RDHCSH

t DRH

t RDLDV

D0-D7

t AVCS

t CSLWRL

t PWR

t WRHCSH

t DWH

t DWS

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