RBIL61 - Retrace

I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo. The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM). The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus. Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 86h/28h - ITT VPX 32xx - FPRAM data transfer {#idx170419}

I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo. The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM). The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus. Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 86h/28h/9Ah - ITT VPX 3220 - FP - "CommandWord" command register {#idx170670}

I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo. The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM). The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus. Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 86h/28h/C1h - ITT VPX 32xx - FP - Horizontal Offset {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx170715}

I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo. The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM). The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus. Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 86h/28h/F0h - ITT VPX 32xx - FP - "CommandWord" control register {#idx170741}{#idx170745}

I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo. The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM). The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus. Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 8Ah/28h - ITT VDP 3108 - FPRAM data transfer {#idx171377}

INT 0A - IRQ2 - LPT2 (PCIBM PC), VERTICAL RETRACE INTERRUPT (EGAEnhanced Graphics Adapter(Enhanced Graphics Adapter) IBMInternational Busiuness Machines's second color video board for the IBMInternational Busiuness Machines PCIBM PC family, capable of a maximum resolution of 640x350 pixels in 16 simultaneous colors of a total of 64 possible colors.,VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers.) {callout or callback} {#idx808}{#idx835}{#idx865}

INT 0D - IRQ5 - FIXED DISK (PCIBM PC,XTIBM PC XT), LPT2 (ATIBM PC AT), reserved (PS/2IBM PS/2, any model) {callout or callback} {#idx1076}

INT 10 - BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. Window Extension v1.1 - SET WINDOW COORDINATES {#idx2308}

INT 10 - Cirrus Logic BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. - SET MONITOR HORIZONTAL RETRACE FREQUENCY {#idx3256}{#idx3258}

INT 10 - VESA(Video Electronics Standards Association) An industry group which sets both hardware and software standards and recommendations. The term VESA is also used to denote compliance with the VESA SuperVGA BIOS Extensions, a standard set of video BIOS functions for accessing video modes of higher resolution than those defined by IBMInternational Busiuness Machines. SuperVGA BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. v1.1+ - GET/SET DISPLAY START {#idx4476}{#idx4488}{#idx4516}

INT 10 - VESA(Video Electronics Standards Association) An industry group which sets both hardware and software standards and recommendations. The term VESA is also used to denote compliance with the VESA SuperVGA BIOS Extensions, a standard set of video BIOS functions for accessing video modes of higher resolution than those defined by IBMInternational Busiuness Machines. SuperVGA BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. v2.0+ - GET/SET PALETTE ENTRIES {#idx4534}

INT 10 - VIDEO - Video7 VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers.,VEGA VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers.,HP EX-BIOS - GET MONITOR INFO {#idx5684}

INT 2F - ANSIPLUS v4.02+ - GET/SET ANSIPLUS SMOOTH SCROLLING RATE {#idx82031}

INT 32 - NOISE.SYS v0.53+ - GET FLAGS {#idx98448}

INT 46 - Z100 - Master 8259 - Keyboard, Retrace, and Light Pen {#idx100503}

INT 62 - FGDRIVER v4.02 - "FG_WAITVR" - ENABLE/DISABLE VERTICAL RETRACE WAIT {partially documented} {#idx113221}

PORTIBM PC Portable (uses same BIOS as XT) 03B0-03BF - MDA(Monochrome Display Adapter) A text-only video adapter introduced together with the original IBMInternational Busiuness Machines PCIBM PC. See also CGAColor Graphics Adapter, HGC. (Monochrome Display Adapter based on 6845) {#idx147760}{#idx147764}{#idx147767}{#idx147773}{#idx147775}{#idx147781}{#idx147790}{#idx147861}{#idx147885}

PORTIBM PC Portable (uses same BIOS as XT) 03C0-03C1 - EGAEnhanced Graphics Adapter(Enhanced Graphics Adapter) IBMInternational Busiuness Machines's second color video board for the IBMInternational Busiuness Machines PCIBM PC family, capable of a maximum resolution of 640x350 pixels in 16 simultaneous colors of a total of 64 possible colors./VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. - ATTRIBUTE CONTROLLER {#idx148004}

PORTIBM PC Portable (uses same BIOS as XT) 03C2-03CF - EGAEnhanced Graphics Adapter(Enhanced Graphics Adapter) IBMInternational Busiuness Machines's second color video board for the IBMInternational Busiuness Machines PCIBM PC family, capable of a maximum resolution of 640x350 pixels in 16 simultaneous colors of a total of 64 possible colors./VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. - MISCELLANEOUS REGISTERS {#idx148129}{#idx148132}

PORTIBM PC Portable (uses same BIOS as XT) 03C4-03C5 - EGAEnhanced Graphics Adapter(Enhanced Graphics Adapter) IBMInternational Busiuness Machines's second color video board for the IBMInternational Busiuness Machines PCIBM PC family, capable of a maximum resolution of 640x350 pixels in 16 simultaneous colors of a total of 64 possible colors./VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. - SEQUENCER REGISTERS {#idx148358}{#idx148367}

PORTIBM PC Portable (uses same BIOS as XT) 03D4-03D5 - COLOR VIDEO - CRT CONTROL REGISTERS {#idx148909}{#idx148913}{#idx148927}{#idx148981}{#idx149018}{#idx149175}{#idx149546}

PORTIBM PC Portable (uses same BIOS as XT) 03D6-03D7 - CGAColor Graphics Adapter(Color/Graphics Adapter) One of the two video display boards introduced together with the original IBMInternational Busiuness Machines PCIBM PC. See also HGC, MDA. (Color Graphics Adapter) - MIRRORS OF 03D4/03D5 {#idx150170}{#idx150177}

PORTIBM PC Portable (uses same BIOS as XT) 03D8-03DF - COLOR VIDEO - CRT MODE AND STATUS REGISTERS {#idx150531}{#idx150536}{#idx150548}{#idx150549}{#idx150554}