Ast I∕O Plus II: Difference between revisions

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{{SuperIO Infobox
{{Device Infobox/Begin
  | Bus type = ISA
  | Bus type = ISA
  | Bus width = 8-bit
  | Bus width = 8-bit
Line 5: Line 5:
  | 8-bit ISA compatible =
  | 8-bit ISA compatible =
  | Manufacturer = Ast Research
  | Manufacturer = Ast Research
| Chipset = N/A
  | Compatible with = [[Has compatibility::RS232]], [[Has compatibility::LPT]], [[Has compatibility::Gameport]], [[Has compatibility::Apple II Gameport]], [[Has compatibility::RTC]]
  | Compatible with = [[Has compatibility::RS232]], [[Has compatibility::LPT]], [[Has compatibility::Gameport]], [[Has compatibility::RTC]]
  | Connectors = [[Has connector::Gameport]], [[Has connector::LPT]] <!-- Other connectors aren't shipped with the card so aren't included -->
  | Connectors = [[Has connector::Gameport]], [[Has connector::LPT]] <!-- Other connectors aren't shipped with the card so aren't included -->
  | ROM type = None
  | Requires -5VDC = No
| Requires -12VDC = Yes
| Config = [[Config method::Jumpers]]
}}
{{Device Infobox/IO
  | Serial ports = 2
  | Serial ports = 2
| UART = 8250 <!-- Based on IC model numbers -->
| COM1 = Yes
| COM2 = Yes
| COM3 = No
| COM4 = No
  | Parallel ports = 1
  | Parallel ports = 1
| Bi-dir = No <!-- Assumption based on age -->
| ECP = No
| EPP = No
| LPT1 = Yes
| LPT2 = Yes
| LPT3 = No
| LPT4 = No
  | Game ports = 1
  | Game ports = 1
| Floppy buses = 0
}}
| Secondary floppy = No
{{Device Infobox/End
| IDE buses = 0
| MFM buses = 0
| Requires -5VDC =
| Requires -12VDC =
| Config = [[Config method::Jumpers]]
  | Driver = N/A
  | Driver = N/A
}}
}}

Latest revision as of 16:00, 13 February 2016

Ast I∕O Plus II
Ast I∕O Plus II.jpg
Bus type ISA
Bus width 8-bit
Bus speed 4.77 MHz
Manufacturer Ast Research
Chipset Unknown
Compatible with RS232, LPT, Gameport, Apple II Gameport, RTC
Connectors Gameport, LPT
Requires -5VDC? No
Requires -12VDC? Yes
Config method Jumpers
IO Controller
Serial ports 2
UART 8250
COM1/2/3/4? Yes / Yes / No / No
Parallel ports 1
Bi-dir? No
ECP? No
EPP? No
LPT1/2/3/4? Yes / Yes / No / No
Game ports 1
Driver N/A

The Ast Research I∕O Plus II is a serial/parallel/gameport board.

Socket U4 is optional, and can be populated with a compatible UART to provide a second serial port. In the main photo a Winbond W86C250B can be seen here. This is an equivalent part to the INS8250N-B providing the first serial port. Both these parts are 8250-compatible UARTs.

Additional photos

  • Underside

    Underside

Related links

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