sixteen DIP sockets for up to 512 kB RAM - 256 kB is preinstalled in eight of the sockets
supports 256k×1 150 ns or faster DIPs, in 128, 256, 512 kB configurations
RAM can be expanded up to 640 kB using a RAM expansion card in an XT slot
128 kB dual port RAM visible by both the Amiga and PC (8 kB for mono display, 32 kB for colour display, 16 kB used for maintenance of records, 64 kB for data exchange, 8 kB used for I/O registers)
connects to the side expansion port
covers the mouse and game ports, they are passed through to the front of the Sidecar
requires the A1000 to be expanded to 512 kB (ie. by the A1050 expansion cartridge)
turning on power to the Sidecar unless the Amiga is powered up can seriously damage the Amiga - use the attached power-cord extender so the A1000 is powered through the Sidecar, though this means the A1060 has to be turned on all the time even if it is unused
two display modes
monochrome: instead of green text on black screen, the Sidecar can display four colours in PC monochrome mode - the colour of text, intensified text and the background are independent of each other and freely adjustable
colour: text can be rendered in up to 16 colours, and graphics can be up to 4 colours
neither modes support blinking of text
can use the Amiga parallel port - it has to be dedicated to either the Amiga or the PC side exclusively
printing works only for applications using interrupt handshaking - those writen with busy-wait loops will not work (eg. Print Screen)
three XT ISA slots
optional 1 MB memory expansion for the Amiga side
360 kB 5.25" floppy drive built in - up to four floppy drives are supported
80386 SX @ 16 / 20 / 25 MHz (32 bit internally, 16 bit external bus)
optional 80387 FPU
sixteen ZIP sockets accept up to 8 MB RAM
1 MB factory installed
supports 256k×4 or 1M×4 page mode ZIPs, 80-120 ns or faster
accepts ZIPs in groups of four
64 kB AT compatible BIOS
upgrading the BIOS and fitting a ZIP to SIMM converter makes possible to use 16 MB RAM
128 kB dual-port RAM for data exchange between the BridgeBoard and the Amiga
can use a PC hard disk (with additional ISA controller), virtual drives on Amiga partitions (hardfiles), you can even have an Amiga partition on the PC hard drive
PC floppy drives can be used in an internal bay, Amiga floppy drives can be used as PC only or shared, external Amiga drives can be connected directly to DB23 floppy connector of the BridgeBoard
only two floppy drives are accessible by the BridgeBoard
the Amiga supports MDA (monochrome) and CGA modes through the native display (CGA 640x200x2 or 320x200x4 modes) - you can toggle between Amiga and PC screens
with an ISA VGA board a separate monitor is needed
the card uses the Amiga's serial or parallel ports for printing
for modems it can only use an internal ISA modem or serial card
PC beeper on board
much slower than a PC with the same processor
card occupies 512kB in the Zorro II address space - when installed, only 7.5 MB of the address space is left for other expansion cards
all it needs is a simple software driver and ROM(s) from the computer to be emulated
all timers, interrupts, clocks are handled on hardware level
support for custom EPROMs, static RAM, and SIMM modules for any methods of storing computer OS
four empty 32 pin ROM / RAM sockets for OSs stored in DIP format (like 128 kB Mac ROMs) and a ROM SIMM socket
Macintosh emulation
uses the same standard serial IC as Macs
AppleTalk is fully supported via two optional 8 pin mini-DIN serial ports, (230400 bps normally, 921600 bps between two Emplants via AppleTalk, 460800 bps when connected to a Doubletalk board) - Appletalk printer / network support
optional autobooting SCSI controller (NCR 53C80) - pseudo DMA transfers up to 1.1 MB/s (not necessary if the Amiga has SCSI already)
serial and SCSI can be used on the Amiga side independently or simultaneously
optional hardware (Sybil - two passthrough connectors: one plugs into RGB, other into parallel) to handle 800 kB Mac floppy disks
Sybil operates by changing the clock speed of the Amiga's custom chips to match the different data rates of Mac formatted disks (the video display gets very distorted because of this)
Sybil can be disabled with a switch
optional e586 module
the SCSI controller is supported by NetBSD and OpenBSD