SN20086

2004/9/2

ver 0.2

1

4 Block diagram

Switch Matrix

fla s h me mory

inte rface logics

FIFO

CP U

US B inte rfa ce

logics

RO M

SRAM

SRAM

5 Functional description

5.1

Flash memory connection

In single channel mode, up to 8 NAND type flash memories can be connected to

SN20086 (in dual channel mode, only 2 flash memories can be connected), the

number of flash memory connected can be detected automatically upon power on.

Each flash memory has its own chip enable control signal path (FLCE 1 to FLCE8).

All flash memories connected to SN20086 must be of the same capacity There is no

special rule for the number of flash memory. (e.g. not necessarily to be the multiples