NEO-SDR-T: Difference between revisions

From NeoGeo Development Wiki
Jump to navigation Jump to search
mNo edit summary
mNo edit summary
Line 1: Line 1:
[[File:neo-sdr-t.jpg|thumb]]
[[File:neo-sdr-t.jpg|thumb]]


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 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 controller I/Os as well.


Draft pinout: [[File:neo-sdr.odg]]
Draft pinout: [[File:neo-sdr.odg]]
Line 7: Line 7:
== Pinout ==
== Pinout ==


NEO-SDR
[[File:Neo-sdr_pinout.png]]
 
* 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]]

Revision as of 13:52, 23 June 2016

Chip found on MV1B and MV1C slots. Handles Z80 subsystem address and port decoding, Z80/68K communication latches and interrupt generation, similarly to NEO-D0. Handles controller I/Os as well.

Draft pinout: File:Neo-sdr.odg

Pinout

File:Neo-sdr pinout.png