Author
| OneChipMSX DIP Switches
|
karloch
msx addict
Posts: 398 |  Posted: July 31 2007, 15:38 |
Does somebody know the use of each DIP switch that can be found on the One Chip MSX?
There is a page on the manual that talks about it, but it's not very clear for me 
 |
|
Guillian
msx professional
Posts: 618 | Posted: July 31 2007, 18:20 |
No.1+2 : Video output mode
00 : composite video
01 : RGB/SCART (15KHz)
10 : VGA (31KHz)
11 : VGA (31KHz) full brightness
No.3 : RCA-red connector function
0 : CMT mode (the RCA works as EAR/MIC connector) More info
1 : Sound output (same as RCA-white plug)
No.4 : Keyboard assignment
0 : (Japanese) 106/109
1 : (International) 101/104
No.5 : MegaSD enable
0 : disable
1 : enable
No.6 : Reserved
No.7 : Reserved
No8 : logical slot2 operation mode
00 : real cartridge slot2
01 : SCC |
|
Latok
msx master
Posts: 1722 | Posted: July 31 2007, 19:04 |
Dipswitch 6 is being used as 10mhz select. Dipswitches 7 and 8 control Megaram, SCC, 512kb blabla etc  |
|
Guillian
msx professional
Posts: 618 | Posted: July 31 2007, 19:18 |
Well, I just enumerated what is described in the official manual. Of course some version implements these extras:
No.6 : CPU speed
0 : 3.58MHz
1 : 10.74MHz
No.7+8 : logical slot2 operation mode
00 : real cartridge slot2
01 : ESE-SCC disk / Snatcher-SD snatcher
10 : ESE-RAM_ASC8K
11 : ESE-RAM_ASC16K
|
|
karloch
msx addict
Posts: 398 | Posted: July 31 2007, 20:06 |
Thank you so much |
|
[D-Tail]
msx guru
Posts: 2994 | Posted: July 31 2007, 21:42 |
Is the dip no. 6 hot-flippable? Similar to the good-old 7.16MHz extensions?
|
|
EVPON
msx lover
Posts: 93 | Posted: August 05 2007, 12:22 |
Quote:
| No.1+2 : Video output mode
00 : composite video
01 : RGB/SCART (15KHz)
|
Then is possible to use a normal RGB(SCART) CRT monitor with OCM.
I didn't know this possibility. For me it was obligatory but I don't remember any document explaining this feature. I donīt understand why.  |
|
spl
msx professional
Posts: 723 | Posted: September 24 2007, 18:42 |
I know this thread is a bit old, but how do you activate any dip switch in the OCM? I only know to change the video one pushing Print Screen.
Yours, |
|
Sd-Snatcher
msx freak
Posts: 229 | Posted: September 24 2007, 19:44 |
SPL.... I received them today.
Did you watch the back of the OCM?
|
|
spl
msx professional
Posts: 723 | Posted: September 25 2007, 15:55 |
Mon dieu! I thought it was a strange port
Well, unfortunately, yesterday I left the DC Adapter at my mother's home, so I will use again the OCM next thursday or friday.
Yours, |
|
|
|
|
