NEO-SDR-T: Difference between revisions

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[[File:neo-sdr-t.jpg|thumb]]
{{ChipInfo
|picture=neo-sdr-t.jpg
|pkg=QFP100R
|manu=toshiba
|date=1994 ?
|gates=
|used_on={{PCB|MV1B}} {{PCB|MV1C}} {{PCB|Neo Print}}...
}}


Chip found on MV1B and MV1C [[MVS hardware|slots]]. Handles [[Z80]] subsystem address and port decoding, Z80/68K communication latches and interrupt generation, similarly to [[NEO-D0]]. Handles 2 player I/O as well.
Chip found on late [[MVS hardware|MVS]] boards.  


Draft pinout: [[File:neo-sdr.odg]]
* [[Joypad]] I/O
* {{Chipname|Z80}} address and port decoding
* [[68k/Z80 communication]] latches and interrupt generation, similarly to {{Chipname|NEO-D0}}
* [[68k]] interrupts latch ?


== Pinout ==
=Pinout=


NEO-SDR
{{Pinout|NEO-SDR|900px}}
 
* 1 VCC
* 2 VCC
* 3 GND ?
* 4 VCC
* 5 VCC
* 6 VCC
 
68k:
* 65 D0
* 64 D1
* 63 D2
* 62 D3
* 61 D4
* 60 D5
* 59 D8
* 58 D9
* 57 D10
* 56 D11
* 55 D12
* 54 D13
* 53 D14
* 52 D15
 
* 51 GND
* 50 GND
 
Z80:
* 49 SDD7
* 48 SDD6
* 47 SDD5
* 46 SDD4
* 45 SDD3
* 44 SDD2
* 43 SDD1
* 42 SDD0
 
* 40 NMI
* 29 MREQ
* 28 IORQ
* 27 Z80RD
* 26 Z80WR


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

Latest revision as of 02:07, 8 July 2018

Package QFP100R
Manufacturer
First use 1994 ?
Used on MV1B MV1C Neo Print...

Chip found on late MVS boards.

Pinout


Edit this pinout