13

6092C–DRMSD–12-Feb-07

ATSAM3108B

10. Peripherals and Timings

10.1

8-bit Slave Parallel Interface

The Slave Parallel Interface is typically used to connect the chip to a host processor.

Pins used: D7 - D0 (I/O), CS (Input), A0 (Input), WR (Input), RD (Input), IRQ (Output).

10.1.1

Timings

Figure 10-1. Host Interface Read Cycle

Figure 10-2. Host Interface Write Cycle

Table 10-1.

Timing Parameters

Symbol

Parameter

Min

Typ

Max

Unit

t

AVCS

Address valid to chip select low

0

-

-

ns

Chip select low to RD low

5

-

-

ns

t

RDHCSH

RD high to CS high

5

-

-

ns

RD pulse width

50

-

-

ns

Data out valid from RD

-

-

20

ns

t

DRH

Data out hold from RD

5

-

10

ns

Chip select low to WR low

5

-

-

ns

WR high to CS high

5

-

-

ns

A0

CS

RD

D0-D7

A0

CS

RD

D0-D7