68k Macintosh Liberation Army Forums
68k Macintosh Liberation Army Forums
Home | Members | Search | FAQ
 All Forums
 Balloon Help
 philips serial bus
Author Topic  
thelip
Full Member


USA
729 Posts
Posted - 08 Aug 2002 :  09:27:52
Ok, this is an odd question:

I've had a new spark of interest in that philips tv tuner board and i've had some interesting findings. To make a very long story short, maclover5 and i discussed some issues with the 7-pin s-video input on av macs. In my other post about pinouts, there is listed the pinouts for this 7-pin port. 4 are standard video stuff, but the other 3 are interesting. One is a 12volt 250 mA power output. (which i know for a fact works, i have a friend that plugs his old school apple conferencing camera into that and it splits into an rca and power cord for the camera) the other 2 are for "I^2C clock (philips serial bus)" and "I^2C data (philips serial bus) exact quotes except for the carrot, it's I squared, i can't do that here.

Soooo.... my question is what is this philips serial bus????

Some ideas that we've thought of could be that I could control this board via software. Like channels, etc. The mac tv operated the tv tuner via software, correct?

AFAIK, these pinouts were for all 7 pin video inputs up to the 8600. Including 68k av models.

I've been searching philips serial bus, but i haven't had much luck, i hope somebody here has an idea.

_______________________
Sgt. Thelip
Heavy Weapons Specialist - 950 division
Liberated Macs: 12
** SEE IF MY NEWTON IS ONLINE AT nsa68k.kicks-ass.net ***

Trash80toG-4
NIGHT STALKER


USA
2899 Posts
Posted - 08 Aug 2002 :  09:37:13
http://www.google.com/search?hl=en&ie=ISO-8859-1&q=i2c

jt .
Trash Hauler: call sign: eight-ball
C.O. AC-130H SpecOps 68kMLAAFGo to Top of Page

thelip
Full Member


USA
729 Posts
Posted - 08 Aug 2002 :  09:44:06
THIS IS THE CHIP ON THE TV TUNER BOARD!!!!!!!!!!!!!!!!!!


http://www.semiconductors.philips.com/pip/tda9855/v2

SO IS THIS!!!!

http://www.semiconductors.philips.com/pip/tda8540t/c2

excellent one step closer to understanding the truth....

_______________________
Sgt. Thelip
Heavy Weapons Specialist - 950 division
Liberated Macs: 12
** SEE IF MY NEWTON IS ONLINE AT nsa68k.kicks-ass.net ***

Edited by - thelip on 08 Aug 2002 09:46:22Go to Top of Page

Trash80toG-4
NIGHT STALKER


USA
2899 Posts
Posted - 08 Aug 2002 :  11:36:01
quote:

excellent one step closer to understanding the truth....


excellent, i looked into i2C as a possible back door into the mac i/o architecture for feeding ADB input to the CUDA chip from a generic USB interface card a while back.

the i2C serial bus would be perfect for communicating with that card of yours and anything attached to the other side of it.

i wonder if i2C might not be the key to enabling functions on the STB also? (Video anyone?)

jt .
Trash Hauler: call sign: eight-ball
C.O. AC-130H SpecOps 68kMLAAFGo to Top of Page

cory5412
68KMLA Comrade-in-Arms


USA
4679 Posts
Posted - 17 Aug 2002 :  02:10:08
Apple made a cool little "conference camera" thing that would plug into that cool little Svideo port, and get its power from that port.

it probably also differentiated it from ADB.

Official 68k videographerGo to Top of Page

thelip
Full Member


USA
729 Posts
Posted - 17 Aug 2002 :  08:33:07
Yeah, a friend of mine has that conference camera and it does as you say. I'm attempting a hack of 2 cables from apple geoport modems and see if that works, i'll keep you all posted.

_______________________
Sgt. Thelip
Heavy Weapons Specialist - 950 division
Liberated Macs: 12
** SEE IF MY NEWTON IS ONLINE AT nsa68k.kicks-ass.net ***Go to Top of Page

   

68k Macintosh Liberation Army Forums

© 2001-2003 68kMLA

Go To Top Of Page

68k of the Week: kastegir's PowerBook 180.