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:date: 2026.01.10 11:36:59
:_modified: 1970.01.01 00:00:00
:tags: MHF-002
:authors: Gilhad
:summary: SystemBus
:title: SystemBus
:nice_title: |logo| %title% |logo|

%HEADER%

SystemBus
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There are two copies of SystemBus, both paralely conected. Either one, or both may be used to stack with other PCBs like retrocomputer or another cards together. I will use female/male connectors (socket with long legs) in the inner position, but it is also possible to use pins downwards and socket upwards, alternation positions, if the F/M connectors are ont available or practical.

The SystemBus contains the usual common power, 8bits Data and 16bits Address, then communication with GLUE divided to A and B parts and rest of pins is reserved for signals (like MasterReset).

MasterReset is used for reseting all connected PCBs, while normal Reset resets only this PCB without affecting others.

|SystemBus-schema.png|


|SystemBus-side.png| view from side with sockets in outer and pins in inner holes

.. |SystemBus-schema.png| image:: SystemBus-schema.png
	:width: 250
	:align: top
	:target: SystemBus-schema.png

.. |SystemBus-side.png| image:: SystemBus-side.png
	:width: 250
	:align: top
	:target: SystemBus-side.png