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Arnold V specs

1,203 bytes added, 12:30, 15 August 2015
/* Common Features */
<font size="-2:>''Copyright Amstrad ©1990 plc''</font></center>
''Note: this is the original, unaltered document as circulated within Amstrad. It is not so much intended as a reference for Plus developers, since it contains certain errors. If you want to read a version that has been corrected at least at some points (thanks to Executioner), please go to [[Arnold_V_Specs_Revised]]''
 
''For more unaltered (read-only) txt/htm versions, see [[Original Arnold V Specs]]. The cpcwiki page that you are currently viewing seems to be based on the original RTF version, as indicated by the characterstically distorted printer pin-out table.''
==PRODUCT RANGE OVERVIEW==
The old CPC6128 keyboard is used, except that the colour scheme has been changed and the connecting cable exits in a different location.
NOTE: gerald (on the forums) has confirmed a fault in the ASIC when used with external memory expansions. If a page of an external memory expansion is activated in the range &4000-&7fff and the asic ram page is active and a write is done, the write will go to the asic ram AND to the external memory expansion. This bug is NOT seen when the extra 64KB inside the 6128Plus is active when the asic ram page is active. It is advised that you set the configuration to &7fc0 before accessing the asic ram.
===Amstrad 464 Plus===
6C0Ah 1 N W PPR2 "DMA" channel 2 pause prescaler
6C0Bh 4 (unused)
6C0Fh 1 Y R/W DCSR "DMA" control/status register</pre>
POR column indicates whether a register has power on reset. A "N" indicates that the contents of a register are undefined at power on.
 
 
==APPENDIX II==
2 Fire 1 10 Fire 1
3 X1 11 X2
4 COM1 (switches) 12 COM2 (switches)
5 +5V 13 Y2
6 Y1 14 Fire 2
33 *WR 34 *HALT
35 *INT 36 *NMI
37 *BUSRQ 38 *BUSAK39 READY 40 *BRST41 *RSET 42 *ROMEN43 ROMDIS 44 *RAMRD45 RAMDIS 46 CURSOR
47 LPEN 48 *EXP
49 GND 50 CLK4</pre>
POWER ON LED: 2 pin 0.1" pitch header
<pre?>
1 LED Anode
2 GND</pre>
15a CCLR 16a GND 15b A5 16b A11
17a GND 18a GND 17b A4 18b A3</pre>
 
[[Category:CPC Plus]]
[[Category:Hardware]][[Category:CPC Internal Components]]
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