demik
Well-known member
Hello,
I knew for a long time that this series of the powerbook has a SPI bus on the modem connector. From the developer notes it's mentioned that the SPI host is likely the Misc GLU:
The documentation (Modem Electrical Interface section) also describes how to switch the modem slot from RS-232 to SPI. But what about the MacOS side ? Later in the note there is note that Apple will release specifications and software tools for SPI modems when they become available.
Does someone know if such documentation was even released ?
I knew for a long time that this series of the powerbook has a SPI bus on the modem connector. From the developer notes it's mentioned that the SPI host is likely the Misc GLU:
The Miscellaneous GLU is a modified version of the Miscellaneous GLU used in the PowerBook 140/145/170. This chip also supports the new SPI modem interface
The documentation (Modem Electrical Interface section) also describes how to switch the modem slot from RS-232 to SPI. But what about the MacOS side ? Later in the note there is note that Apple will release specifications and software tools for SPI modems when they become available.
Does someone know if such documentation was even released ?