Help needed! PinOut for Video Port!
Ormeg Handels GmbH
Recently I brought a TI-99/4A in Germany without any manuals. So I need the
correct PinOut of the Video Port.
It was a TI for the German Market (Made in Italy though), so it has a
6!!!!-Pin DIN-Port. Yes, 6 Pins, not 5. I
found PinOuts of a 5 Pin-Port at http://99er.interspeed.net/tech.html and
http://www.geocities.com/SiliconValley/Haven/1236/pinouts.htm
But unfortunately those are worthless for me, for obvious reasons. I don't
know why there are different ports, maybe because
of different Video-Standards in USA/Europe?
It would be of a great help if someone could send me the PinOut of the
6-Pin-Port, otherwise my TI will never display anything at all.
CU,
Altay Basdogan
Dan O'Quinn
Dan O'Quinn
Ormeg Handels GmbH <basd...@debitel.net> wrote in message
news:3842b...@news.ivm.net...
>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<
jgroslou wrote:
> >I would be grateful for the full pin out list. Thanks for your help, I
will
> >have to get out my magnifying glass to see which pins are/not used.
Here's an excerpt from the "TMS9118/TMS9128/TMS9129 Data Manual"
for the VDP pinouts.
The 9118/9128/9129 VDP's are the succesors of the 9918A/9928A/9929A VDP's.
These new chips have improved memory addressing circutry which allows the
interface of either 8 TMS4116 (2k) or 2 TMS4416 (8K) dynamic RAMs.
VDP PROCESSOR TYPE
_________
RAS =|1 U 40|= XTAL1 9118 9128/29 9918A 9928A/29A
CAS =|2 39|= XTAL2 ======= ======= ======== =========
AD7 =|3 38|= .............. CPUCLK R-Y CPUCLK R-Y
AD6 =|4 37|= .............. NC CPUCLK GROMCLK GROMCLK
AD5 =|5 36|= .............. COMVID Y COMVID Y
AD4 =|6 35|= .............. EXTVDP B-Y EXTVDP B-Y
AD3 =|7 34|= RESET/SYNC
AD2 =|8 33|= vCC
AD1 =|9 32|= RD0
AD0 =|10 31|= RD1
R/W =|11 30|= RD2
vSS =|12 29|= RD3
MODE =|13 28|= RD4
CSW =|14 27|= RD5
CSR =|15 26|= RD6
INT =|16 25|= RD7
CD7 =|17 24|= CD0
CD6 =|18 23|= CD1
CD5 =|19 22|= CD2
CD4 =|20 21|= CD3
`---------'
SIGNATURE PIN I/O DESCRIPTION SIGNATURE PIN I/O DESCRIPTION
========== === === ================== ========== === ===
==================
AD0 MSB 10 O VRAM address bus CD0 MSB 24 I/O CPU data bus
AD1 9 O CD1 23 I/O
AD2 8 O CD2 22 I/O
AD3 7 O CD3 21 I/O
AD4 6 O CD4 20 I/O
AD5 5 O CD5 19 I/O
AD6 4 O CD6 18 I/O
AD7 LSB 3 O CD7 LSB 17 I/O
SIGNATURE PIN I/O DESCRIPTION SIGNATURE PIN I/O DESCRIPTION
========== === === ================== ========== === ===
==================
RD0 MSB 32 O VRAM read/write CD0 MSB 24 I/O CPU data bus
RD1 31 O data bus CD1 23 I/O
RD2 30 O CD2 22 I/O
RD3 29 O CD3 21 I/O
RD4 28 O CD4 20 I/O
RD5 27 O CD5 19 I/O
RD6 26 O CD6 18 I/O
RD7 LSB 25 O CD7 LSB 17 I/O
SIGNATURE PIN I/O DESCRIPTION
=========== === ===
=========================================================
CAS 2 O VRAM column address strobe
CSR 15 I CPU-VDP read strobe
CSW 14 I CPU-VDP write strobe
INT 16 O CPU interrupt output
MODE 13 I CPU interface mode select; an address line or select
RAS 1 O VRAM row address strobe
RESET/SYNC 34 I Trilevel input; below 0.8v - initalizes the VDP
above 9v sync - sync input for EXTVDP
R/W 11 O VRAM write strobe
vCC 33 I +5v supply
vSS 12 I Ground reference
XTAL1 40 I 10.738635 MHz crystal connection
XTAL2 39 I 10.738635 MHz crystal connection
9918/28/29 Differing Pins
SIGNATURE PIN I/O DESCRIPTION
=========== === ===
=========================================================
EXTVDP 35 I Multiple TMS9118 VDP operation
B-Y 35 O Blue color difference output
COMVID 36 O Composite Video Output
Y 36 O Y (Black/White luminance and composite sync) output
NC 37 Reserved - Do not use
CPUCLK 37 O CPUCLK equals XTAL/3 (color burst freq)
CPUCLK 38 O CPUCLK equals XTAL/3 (color burst freq)
Can be used as an external clock
R-Y 38 O Red color difference output
TTYL...
Tyler Van Tighem
207-3818 19th Ave SW
Calgary, Alberta
CANADA T3E 6T3
E-Mail: tvan...@shaw.wave.ca
>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<
>Does anybody have the pinouts to the TMS 9929A VDP as used in the
>Australian TI99/4A ??
This is information that I sent to Brian Tristan Williams last June. It is
extracted from a Texas Instruments publication called Video Display
Processors Programmers Guide published in 1984. Product # SPPU004.
>>>pinouts for TMS9118, TMS9128/9129, TMS9918A, and TMS9928A/9929A. A
footnote
>>>on this page says "pins 35 to 38 are the only pins which vary for each
device".
>>>
>>>If it is of any help to you I could send you the pinout information for
each
>>>of these 4 pins for each of the chips in which you are interested.
>>
>>Thanks, Jacques - I would be very interested in this information.
>>
>
>Pins 35 to 38 for each of the four chips described are as follows:
>
>TMS9118
>
>35 EXTVDP
>36 COMVID
>37 NC
>38 CPUCLK
>
>TMS9128/9129
>
>35 B-Y
>36 Y
>37 CPUCLK
>38 R-Y
>
>TMS9918A
>
>35 EXTVDP
>36 COMVID
>37 GROMCLK
>38 CPUCLK
>
>TMS9928A/9929A
>
>35 B-Y
>36 Y
>37 GROMCLK
>38 R-Y
>
>
Let me know if you want pins 1 to 34 and 39 and 40. Whether or not these are
as used in the Australian TI99/4A I would not know.
Has anyone heard from Brian recently?
Jacques
Jacques Groslouis
jgro...@nbnet.nb.ca
1747 Riverbank Drive
Bathurst New Brunswick E2A 4L1
CANADA
Jim Fetzner
look in my documentation to see if the exact pin out is there, but without a
PAL modulator and matching television, you will have some difficulty with it
anyways (it won't sync up and you won't get any sound with a television).
As a side note, I seem to remember reading somewhere that that version was
also easily used with an RGB modulator (commercially produced for a while by
Ryte Data), though I haven't seen any of them around in a long while.
"Dan O'Quinn" <da...@lowNOSPAMcountry.com> wrote in message
news:81vof9$6ah$1...@news3.infoave.net...
Raphael Nabet
>also easily used with an RGB modulator (commercially produced for a while by
>Ryte Data), though I haven't seen any of them around in a long while.
We always had RGB modulators in France, since, by legal requirement, every
TV sold in France after 1981 was to have a RGB input. Since my TV was
older, I had a RGB modulator by TI, then a third-party RGB to SECAM
(French TV standard) modulator. Tricky, isn't it :-) .
regards,
Raphael
--
Raphael Nabet.
Student, programmer (amateur), MacV9T9 maintainer.
pyt...@club-NOSPAMPLEASEinternet.fr (delete the NOSPAMPLEASE)
Ormeg Handels GmbH
Due to the help of you all, I solved my problem and my TI is now just
working fine.
Here is the correct PinOut of the 6-Pin-Videoport:
1 +12V
2 Y
3 R-Y
4 B-Y
5 Audio
6 Mass
You can get a Monochrome Signal with 2 and 6
For a Colour Signal you need the TV-Modulator.
That was bad for me, because I haven't had one, but a
kind bloke send it to me for free.
CU,
Altay Basdogan