Emulex DCP_link manual Control Register 4 Read Option, Window Group Select, Memory Size, Chapter

2-8 Chapter 2

Control Register 4 Read Option

Set Jumper J1 to enable (J1-3 to J1-4 connected) host read access to Control Register 4.

Window Group Select

The DCP286i-SBC contains memory that is shared by the host. The host software can select the size of the window that is shared using jumper J1:5-6. The factory default setting (J1-5 to J1-6 connected) allows window sizes of 16K, 32K, 64K or 1MB. By removing this jumper, window sizes of 16K, 64K or 128K are made available.

Memory Size

The memory size on the board, 512 kB or 1MB, is selected by jumper position J1:7-8. The DCP286i-SBC is shipped with 1 MB of Dynamic RAM. Remove this jumper to select 512 kB of RAM.