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JTAG-Booster for AMD ÉlanSC520

32 JTAGEL5d.doc

/BOOTCS /ROMCS1 /ROMCS2

This options may be used to specify one or more chip select signals to the flash

memory. The used chip selects must be defined as output and inactive in the

initialization file. (See chapter 1.6 “Initialization file JTAGEL5.INI”.)

Default: /BOOTCS

/NOCS

Use this option to switch off all chip select signals. This may be necessary if the

device's chip select is generated via a normal decoder instead of using the AMD

ÉlanSC520 chip select unit.

/8BIT /16BIT

Specifies the bus interface to the target device. You can speed up autodetection,

if you specify the correct bus interface width.

/32L /32H

The JTAG-Booster is not able to handle the interface to a dual 16bit ROM (32bit-

ROM). With this two options you can select one 16 bit half of a 32bit-ROM. The

option /32L selects the low word and /32H selects the high word. 32 bit flash

eproms are always connected to the SDRAM data bus. It is not necessary to

specify the option /MBUS if the option /32L or /32H is used. Do not specify the

option /8BIT together with /32L or /32H.

/MBUS

With this option the SDRAM data bus (MDx bus) is used instead of the general

purpose data bus (GPDx bus) for accesses to flash eproms.

/WRSETUP

By default write cycles to the Flash EPROM start with address, data and write

strobe set at the same time. With the option /WRSETUP you can force the

program to generate a setup time for address and data with respect to the write

strobe.

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DMP Electronics SCS2 Manual do Utilizador Página 32