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Last modified on 20 August 2019, at 17:48

Difference between revisions of "Panda Electronics Communications Interface Unit"

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

Latest revision as of 17:48, 20 August 2019

Dual RS232 with 8bit Printer Port. Driver ROM from Panda Electronics Ltd.

Known and Unknown Stuff

The ROM image from Panda Electronics is found on various webpages. However, there is nothing known about the hardware.

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 Timatic Systems 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 implemented via a 8255 PPI chip. The dual RS232 port is compatible with the Amstrad Serial Interface. I/O Ports are: 

 F9DCh  Panda PPI Port A - 8bit Printer data
 F9DDh  Panda PPI Port B - 8bit general purpose I/O port
 F9DEh  Panda PPI Port C - Handshake (bit0=Strobe.out, Bit5=Busy.in)
 F9DFh  Panda PPI Control - 8bit Printer data
 FADCh  Amstrad RS232 Z8470 (Z80 DART) Channel A Data             (R/W)
 FADDh  Amstrad RS232 Z8470 (Z80 DART) Channel A Control/Status   (R/W)
 FADEh  Amstrad RS232 Z8470 (Z80 DART) Channel B Data             (R/W)
 FADFh  Amstrad RS232 Z8470 (Z80 DART) Channel B Control/Status   (R/W)
 FBDCh  Amstrad RS232 8253 Baudrate Timer 0 Channel A TX Clock    (R/W)
 FBDDh  Amstrad RS232 8253 Baudrate Timer 1 Channel A RX Clock    (R/W)
 FBDEh  Amstrad RS232 8253 Baudrate Timer 2 Channel B RX/TX Clock (R/W)
 FBDFh  Amstrad RS232 8253 Baudrate Timer 0-2 Control Registers   (W)

RSX Commands

  • |SETPORT,n - redirect MC_PRINT_CHAR (BD2Bh) (1=SIO_A, 2=SIO_B, 3=PPI.A, 4=EFxxh) (default=3)
  • |SETSIO
  • |TIMEOUT,n - set timeout (0..255)
  • |ROMCAT - show sideways rom directory
  • |SIOMENU - config menu (baudrate, parity, etc.)
  • |SENDEOF
  • |PORTOUT and |PORTIN - set direction of PPI.B (general purpose I/O port)
  • |OUTCHAR and |INCHAR
  • |OUTBLOCK and |INBLOCK
  • |OUTFILE and |INFILE
  • |OUTBYTE and |INBYTE
  • |XON and |XOFF
  • |LFON and |LFOFF
  • |DTRON and |DTROFF
  • |CTSON and |CTSOFF

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