AdapterId 080CCH AdapterName "Microfield T8/2 High Resolution Graphics Controller" ; ADF File @80CC.adf Version 2.0 Last Modified 7-18-1988 ; Copyright 1987, 1988 Microfield Graphics, Inc. ; ; The Microfield T8/2 High Resolution Graphics Controller provides a ; resolution of 1280 X 1024 pels or 1024 X 768 pels. It provides for ; display of the PS/2 VGA Graphics on the same monitor by means of ; capturing the VGA video data and expanding it to a full screen display. ; ; The T8/2 is capable of driving two classes of monitors. Which class of ; monitor is chosen is configured with a jumper. The jumper is neccesary ; because the VGA video data must be correctly displayed even if the ; normal POS configuration fails. ; ; The two classes of monitors are: ; 1. 64 Khz, Non Interlaced, Fixed Horizontal Frequency Monitor. ; High Resolution, 1280 X 1024 Pels. ; VGA video data is captured at 31 Khz non-interlaced ; and displayed at 64 Khz non-interlaced. ; MCGI High Resolution Mode is displayed at 64 Khz ; non-interlaced. (64 Khz non-interlaced specific ; microcode required.) ; ; 2. 31 Khz Horizontal Frequency Monitor. ; a. High Resolution, 1024 X 768 Pels, Non-Interlaced Multi-Sync ; Monitor Capable of Accepting Horizontal Frequencies in the ; Range of 31 KHz to 48 KHz. ; VGA video data is captured and displayed ; at 31 Khz non-interlaced. ; MCGI High Resolution Mode is displayed at 48 Khz ; non-interlaced. (48 Khz non-interlaced specific ; microcode required.) ; ; b. High Resolution, 1024 X 768 Pels, 31 Khz, Interlaced, Fixed ; Horizontal Frequency Monitor ; VGA video data is captured and displayed ; at 31 Khz non-interlaced. ; MCGI High Resolution Mode is displayed at 31 Khz ; interlaced. (31 Khz interlaced specific ; microcode required.) ; NumBytes 1 FixedResources pos[0]=XX0XXXXXb ; ; The POS byte is formatted as follows: ; ( The Power Up Default In All Cases Is Zero. This May ; Or May Not Be The Same As The Recommended Setting. ) ; ; ; Bits 7 & 6 select the Interrupt Channel as follows: ; ; 76 <- Bit Position ; ; 00 - Disable Interrupts ; 01 - Interrupt Channel 9 ( Recommended Setting ) ; 10 - Interrupt Channel 10 ; 11 - Interrupt Channel 11 ; ; ; Bit 5 is Reserved and Must Be Undefined: ; ; 5 <- Bit Position ; ; X - Must Be Undefined ( Fixed Resource, Always Zero ) ; ; ; Bits 4 & 3 select the DMA Channel & Arbitration Level as follows: ; ; 43 <- Bit Position ; ; 00 - DMA Channel 7 & Arbitration Level 7 ( Recommended Setting ) ; 01 - DMA Channel 6 & Arbitration Level 6 ; 10 - DMA Channel 5 & Arbitration Level 5 ; 11 - ( Equivalent to 00, But Do Not Program ) ; ; ; Bit 2 selects whether the T8/2 is enabled for VGA capture mode: ; ; 2 <- Bit Position ; ; 0 - Enable the T8/2 for VGA Operations ( Recommended Setting ) ; 1 - Disable the T8/2 for VGA Operations ; ; ; Bit 1 selects the I/O port address for the T8/2 Command/Status Register: ; ; 1 <- Bit Position ; ; 0 - Use 030D for Command/Status Register ; 1 - Use 03DD for Command/Status Register ( Recommended Setting ) ; ; ; Bit 0 is the Card Enable Bit and Must Be Undefined: ; ; 0 <- Bit Position ; ; X - Must Be Undefined ( Set & Reset By Configuration Manager ) ; NamedItem Prompt "DMA Channel & Arbitration Level" Choice "Channel/Level 7" pos[0]=XXX00XXXb ARB 7 Choice "Channel/Level 6" pos[0]=XXX01XXXb ARB 6 Choice "Channel/Level 5" pos[0]=XXX10XXXb ARB 5 Help "To configure this adapter you must choose the DMA Channel and Arbitration Level. You may choose DMA Channels 7, 6, or 5 and corresponding Arbitration Levels 7, 6, or 5. Under normal circumstances select DMA Channel and Arbitration Level 7." ; NamedItem Prompt "Interrupt Level" Choice "Interrupt Level 9" pos[0]=01XXXXXXb INT 9 Choice "Interrupt Level 10" pos[0]=10XXXXXXb INT 10 Choice "Interrupt Level 11" pos[0]=11XXXXXXb INT 11 Choice " No Interrupts " pos[0]=00XXXXXXb Help "To configure this adapter you must choose the Interrupt Level. You may choose Interrupt Level 9, 10, 11, or No Interrupts. Under normal circumstances select Interrupt Level 9." ; NamedItem Prompt "VGA Display Enable" Choice "VGA Display Enabled" pos[0]=XXXXX0XXb Choice "VGA Display NOT Enabled" pos[0]=XXXXX1XXb Help "This adapter may be used in a single monitor system or in a two monitor system. If the system has a single monitor, configure the T8/2 with VGA Display Enabled. If the system has two monitors, configure the T8/2 with VGA Display NOT Enabled." ; NamedItem Prompt "I/O Port Addresses" Choice "Ports 03DD & 03DE" pos[0]=XXXXXX1Xb Choice "Ports 030D & 030E" pos[0]=XXXXXX0Xb IO 030Dh - 030Eh Help "To configure this adapter you must choose the I/O Port Address Locations. You may choose between two different locations. Under normal circumstances choose ports 030D & 030E."