There are no known descriptions, photos, or adverts for the actual hardware.
So far, it is unknown if "Panda Hardware" does exists at all (possibly, Panda only made the software, and the corresponding hardware was produced or distributed by a different company - a possible candidate might be [[TimaticSystems]] whom did offer a "dual rs232 with 8bit centronics")
Please add info if you know where the ROM image came from!
== Technical ==
The 8bit Printer Port is implemeted implemented via a [[8255 PPI chip]]. The dual RS232 port is compatible with the [[Amstrad Serial Interface]]. I/O Ports are:
F9DCh Panda [[8255 PPI chip|PPI]] Port A - 8bit Printer data
F9DDh Panda [[8255 PPI chip|PPI]] Port B - 8bit general purpose I/O port F9DEh Panda [[8255 PPI chip|PPI]] Port C - Handshake (bit0=Strobe.out, Bit5=Busy.in) F9DFh Panda [[8255 PPI chip|PPI]] Control - 8bit Printer data FADCh Amstrad RS323 RS232 [[Z80-DART/Z80-SIO chip|Z8470 (Z80 DART)]] Channel A Data (R/W) FADDh Amstrad RS323 [[Z80-DART/Z80-SIO chip|RS232 Z8470 (Z80 DART)]] Channel A Control/Status (R/W) FADEh Amstrad RS323 [[Z80-DART/Z80-SIO chip|RS232 Z8470 (Z80 DART)]] Channel B Data (R/W) FADFh Amstrad RS323 [[Z80-DART/Z80-SIO chip|RS232 Z8470 (Z80 DART)]] Channel B Control/Status (R/W) FBDCh Amstrad RS323 RS232 [[8253 chip|8253]] Baudrate Timer 0 Channel A TX Clock (R/W) FBDDh Amstrad RS323 [[RS232 8253 chip|8253]] Baudrate Timer 1 Channel A RX Clock (R/W) FBDEh Amstrad RS323 [[RS232 8253 chip|8253]] Baudrate Timer 2 Channel B RX/TX Clock (R/W) FBDFh Amstrad RS323 [[RS232 8253 chip|8253]] Baudrate Timer 0-2 Control Registers (W)
== RSX Commands ==
* [[Media:Panda Electronics Communication Interface Unit Interface Driver v1.5.zip]] - PIA DRIVER rom-image (v1.5 Oct 1986)
[[Category:Peripherals]] [[Category:Serial_interfaces]] [[Category:Expansion ROM]] [[Category:Network]]