NEO-244: Difference between revisions

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==SLOT4F @ A2==
==SLOT4F @ A2==


Current buffers for control lines.
Buffers for control lines.


*4: ROMOE
{{Pinout|NEO-244_mv4f_a2|512}}
*5: ROMOEU
 
*16: ROMOEL
==SLOT4F @ B2==
*17: RW
 
*19: AS
Buffers for Z80 address lines.
*20: PORTOEU
 
*32: PORTOEL
{{Pinout|NEO-244_mv4f_b2|512}}
*33: PORTWEU
 
*36: PORTWEL
==SLOT4F @ C2==
*37: PORTADRS
 
Buffers for P bus lines.
 
{{Pinout|NEO-244_mv4f_c2|512}}
 
==SLOT4F @ D2==
 
Buffers for P bus and other lines.
 
{{Pinout|NEO-244_mv4f_d2|512}}
 
==SLOT4F @ E2==
 
Buffers for ADPCM lines.
 
{{Pinout|NEO-244_mv4f_e2|512}}


[[Category:Chips]]
[[Category:Chips]]

Revision as of 11:41, 24 March 2019

Package QFP64R
Manufacturer
First use 1992 ?
Used on SLOT4F

Just a bunch of buffers.

Only (?) used on second revision 4-slot MVS systems.

Pinout

Generic pinout.


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SLOT4F @ A1

Buffers for 68k address lines.


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SLOT4F @ A2

Buffers for control lines.


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SLOT4F @ B2

Buffers for Z80 address lines.

File:NEO-244 mv4f b2 pinout.png
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SLOT4F @ C2

Buffers for P bus lines.

File:NEO-244 mv4f c2 pinout.png
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SLOT4F @ D2

Buffers for P bus and other lines.

File:NEO-244 mv4f d2 pinout.png
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SLOT4F @ E2

Buffers for ADPCM lines.

File:NEO-244 mv4f e2 pinout.png
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