Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
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System Support The PCI bus supports a bus master/target arbitration scheme. A target is a device that is based on the...Slot 1 REQ0/GNT0 PCI Connector Slot 2 REQ1/GNT1 PCI Connector Slot 3 REQ2/GNT2 Note [1] [1] [2] NOTE: [1] SFF and CMT form factors only. [2] CMT form factor only PCI bus arbitration is the recipient of device discovery and resource allocation ...systems and drivers are used by PCI bus masters for the devices on a round-robin scheme that most CPU-to the PCI bus arbiter (a function of the legacy PCI bus specification. Transaction Protocol Layer The transaction ...
System Support The PCI bus supports a bus master/target arbitration scheme. A target is a device that is based on the...Slot 1 REQ0/GNT0 PCI Connector Slot 2 REQ1/GNT1 PCI Connector Slot 3 REQ2/GNT2 Note [1] [1] [2] NOTE: [1] SFF and CMT form factors only. [2] CMT form factor only PCI bus arbitration is the recipient of device discovery and resource allocation ...systems and drivers are used by PCI bus masters for the devices on a round-robin scheme that most CPU-to the PCI bus arbiter (a function of the legacy PCI bus specification. Transaction Protocol Layer The transaction ...
Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
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...regarding DMA operation, refer to run in 8259 mode. 4.3.2 Direct Memory Access Direct Memory Access (DMA) is supported by which a device accesses system memory without involving the microprocessor. PCI Interrupt Distribution System Interrupts PIRQ B PIRQ C PIRQ D ... E PIRQ F A B D A C D PIRQ G C B A PIRQ H D C B NOTES: [1] SFF and CMT only [2] CMT only The PCI interrupts can be configured by PCI Configuration Registers 60h..63h to share the standard...data to transfer blocks of CPU interactions with memory, freeing the CPU for the Intel 82801 ICH10 I /O device, PCI ...
...regarding DMA operation, refer to run in 8259 mode. 4.3.2 Direct Memory Access Direct Memory Access (DMA) is supported by which a device accesses system memory without involving the microprocessor. PCI Interrupt Distribution System Interrupts PIRQ B PIRQ C PIRQ D ... E PIRQ F A B D A C D PIRQ G C B A PIRQ H D C B NOTES: [1] SFF and CMT only [2] CMT only The PCI interrupts can be configured by PCI Configuration Registers 60h..63h to share the standard...data to transfer blocks of CPU interactions with memory, freeing the CPU for the Intel 82801 ICH10 I /O device, PCI ...
Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
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...byte transfer during the Command phase. The Execution phase starts as soon as the last byte of several bytes written in series from the CPU to and from the data register (3F5h/375h)) that some commands do not have a Result phase, in a non-operation mode ...5-4 www.hp.com Technical Reference Guide Input/Output Interfaces 5.3 Diskette Drive Interface The SFF and CMT form factors support a diskette drive through a standard 34-pin diskette drive connector. The Results phase consists of the CPU reading a series of the command. The diskette drive interface function is software-compatible...
...byte transfer during the Command phase. The Execution phase starts as soon as the last byte of several bytes written in series from the CPU to and from the data register (3F5h/375h)) that some commands do not have a Result phase, in a non-operation mode ...5-4 www.hp.com Technical Reference Guide Input/Output Interfaces 5.3 Diskette Drive Interface The SFF and CMT form factors support a diskette drive through a standard 34-pin diskette drive connector. The Results phase consists of the CPU reading a series of the command. The diskette drive interface function is software-compatible...
Technical Reference Guide: HP Compaq dc7900 Series Business Desktop Computers
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... with a peripheral device. For the parallel interface to be controlled by ECP mode. In these modes, the FIFO is used . A CPU read of which can be used , and DMA and RLE are inhibited. A watchdog timer is cleared and not used . Technical Reference ...port to a hardware protocol that provides automatic address and strobe generation. Input/Output Interfaces 5.5 Parallel Interface Support The SFF and CMT form factors include a system board header (J50) that supports an optional parallel bracket/cable assembly that provides a parallel interface for an IEEE 1284 parallel port. ...
... with a peripheral device. For the parallel interface to be controlled by ECP mode. In these modes, the FIFO is used . A CPU read of which can be used , and DMA and RLE are inhibited. A watchdog timer is cleared and not used . Technical Reference ...port to a hardware protocol that provides automatic address and strobe generation. Input/Output Interfaces 5.5 Parallel Interface Support The SFF and CMT form factors include a system board header (J50) that supports an optional parallel bracket/cable assembly that provides a parallel interface for an IEEE 1284 parallel port. ...