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x68000:xsimm10_-_memory_expansion_board

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All information on this page was taken from: http://www.geocities.co.jp/SiliconValley-SanJose/6808/

XSIMM10 memory expansion board

XSIMM10 (Ten X-Sim) was manufactured and sold from 1994 by Systems Research Ltd., Tokyo. It is a memory expansion board for the X68000 series. This product uses commercially available SIMM modules (not included) mounted on board, and is compatible with X68000 I/O expansion slots.

XSIMM10

Compatible SIMM modules

The XSIMM10 board can be used with the following commercially available SIMM modules:

  • PC/AT: 9-bit (with parity) 30-pin
  • Macintosh: 8-bit, 30-pin

However, due to the vertical size limitations of I/O expansion slots, there are following SIMM module vertical size restrictions:

  • When mounted in slot 1: Less than 15.3mm
  • When mounted in slot 2: Less than 20.4mm

If the size is exceeded, the adjacent slot is unusable.

In addition, when used with the following models, you must have a total of 2MB internal memory to add more RAM and 1MB of internal memory expansion board in advance.

XSIMM10 SIMM modules must have the same access time and memory capacity as a pair or two pairs. The RAM can be expanded up to 10MB maximum.

SIMM modules with 4MB or 1MB capacity can be used as a pair. However, to implement two pairs, do not use 4MB SIMM modules.

  • A Pair (Aペア): Each SIMM module can be 4MB or 1MB (You must specify the capacity of installed SIMM modules).
  • B Pair (Bペア): Each SIMM module can be only 1MB

DIP switch settings

S1 and S2 DIP switch settings as pictured above.

  • 0 = ON
  • 1 = OFF

(OFF = 1 is displayed on the board) DIP switch settings as shown below.

DIP switch settings, etc., was taken from the instruction manual XSIMM10 Systems Research Inc., Tokyo.

* The product's manufacturer, Research Systems, Ltd., Tokyo is.

x68000/xsimm10_-_memory_expansion_board.1326323378.txt.gz · Last modified: 2019/08/27 20:44 (external edit)