GG2-Bus+ card


The GG2 Bus+ lets you add IBM-compatible hardware to your Amiga. The most common additions are extra parallel and serial ports, and _network_ cards.

The GG2 Bus+ is NOT a 486 bridgecard, and does NOT run windows, it merely allows you to access less expensive PC cards.

GG2-HW Compatibility

The GG2 Bus+ supports almost all non-DMA AT-compatible (8 MHz bus capable) PC plug-in boards. This includes such popular items as internal modems, multi-I/O boards, IDE hard drive controllers, non-DMA ethernet boards, VGA boards, A/D boards, etc. Access to the PC cards is at full Amiga Zorro II bus speed unless wait state support is turned on.

GG2-PC drivers

PC drivers included with GG2 Bus+ are:

 ibmser.device

 A replacement serial device for internal modems and multi-I/O
 cards.  Includes automatic use of the 16550 FIFO buffer when  
 available.  Support for up to 4 serial ports at once,
 equivalent of COM1-4.

 ibmprint.device

 A new parallel output-only driver for printing through IBM LPT
 compatible parallel ports on multi-I/O cards.  Support for up
 to 3 printers at once, equivalent of LPT1-3.

 ibmIDE.device

 A driver program to allow the use of IDE, RLL or MFM hard drives.
 NE1000.device and NE2000.device.These are SANA-II ethernet drivers
 for Novell NE1000 and NE2000 boards and compatibles.
 NE1000 is  8 bit card, 8K memory.
 NE2000 is 16 bit card.

GG2-SW Compatibility

Since the Ethernet drivers are SANA II compliant, you can use your GG2/Ethernet combination with all of the popular network packages, such as Envoy and AmiTCP

Commodore's AS225r1 is NOT a SANA-II networking package, and will not work with an Ethernet card on a GG2 Bus+.

Oxxi's Novell Netware Client software is not a SANA II networking package and will not work with an Ethernet card on a GG2 Bus+.

CrossPC and PCTask software PC emulators are aware of the GG2 Bus+ and will let you use IBM-compatible hardware from inside the emulation. Among other IBM peripherals that have been successfully operated are, ROM programmers and PC-television cards.

GG2-Requirements

The GG2 Bus+ occupies one Zorro II slot aligned with an PC-AT slot in an Amiga 2000, A2500, A3000, or A4000. It has essentially the same form factor as a Commodore bridgeboard. You will need at least one additional open PC-AT slot for your plug-in PC card. The GG2 Bus+ requires 1 Megabyte of available AUTOCONFIG memory space to correctly map all of the PC memory locations. All address and data lines to the PC bus are buffered to avoid loading-down Amiga bus lines.

Most of the software requires 2.04 or higher. The actual device drivers themselves (ibmser.device, ibmIDE.device...) will probably work under Amiga Dos 1.3, but the support programs (like SwitchControl and SerPrefs) don't.