AMD DiskOnChip Panduan Pengguna - Halaman 6

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4.3 Locking Protected Areas.

When setting the Lock# pin, the DiskOnChip 32MB will not allow writing to write protected areas or

access to read protected areas, even when the correct password is entered.

Use J2 to set the Lock# state of the DiskOnChip 32MB (refer to

Table 4: J2 Settings

#Lock

Enable

Disable *

* Default factory settings

4.4 Working in 16 Bit Mode

When setting the IF_CFG pin, the DiskOnChip 32MB will work in full 16-bit mode, thus achieving

approximately twice the performance.

Use J3 to set the IF_CFG pin of the DiskOnChip 32MB (refer to

Table 5: J3 Settings

#Lock

8-Bit

16-Bit *

* Default factory settings

4.5 Disabling TSOP Devices Soldered On Board

You may use J16 and J17 to disable DiskOnChip devices soldered on board (either TSOP-I or TSOP-

II), without having to physically remove them from the board (refer to

Table 6: J16 & J17 Settings

Jumper

J16

J17

* J16 and J17 default factory setting is N.C (i.e. the TSOP-I and TSOP-II sockets are enabled).

DiskOnChip and TrueFFS are M-Systems registered trademarks.

J2 State

SHORT

N.C

J3 State

SHORT

N.C

State

SHORT

TSOP-II devices are disabled

SHORT

TSOP-I devices are disabled

DiskOnChip PCI EVB User Manual

Table

4).

Table

5).

Table

Outcome

6).