Therefore, to reduce the number of chips required, it included features such as clock generator, interrupt controller, timers, wait state generator, DMA channels, and external chip select lines.

The most unique aspect of the system is its multicore processing node which integrates six MIPS64 cores, a crossbar memory controller, interconnect DMA engine, Gigabit Ethernet and PCI Express controllers all on a single chip which consumes only 10 watts of power, yet has a peak floating point performance of 6 GFLOPs.

* KXJ11-QBUS card ( M7616 ) with PDP-11 based peripheral processor and DMA controller.

* SBC 11 / 21 ( boardname KXT11 ) Falcon and Falcon Plus — single board computer on a Qbus card implementing the basic PDP-11 instruction set, based on T11 chipset containing 32 KB static RAM, two ROM sockets, three serial lines, 20 bit parallel I / O, three interval timers and a two-channel DMA controller.

* KXJ11 — QBUS card ( M7616 ) with PDP-11 based peripheral processor and DMA controller.

This is in addition to the hardware standard on the IBM PC, PC / XT, and PC / AT motherboards: keyboard interface, expansion slots, memory subsystem, DMA, interrupt controller, and math coprocessor socket.

The Tandy 1000 SX and TX were the first models in the Tandy 1000 line to have a built-in DMA controller.

The earlier 1000 / 1000A, 1000 HD, 1000 EX and 1000 HX models, like the IBM PCjr, did not have a DMA controller, but could be upgraded with one.

This allows for slightly faster memory access, as the HW1's DMA controller used about 10 % of the bus bandwidth.

The Ultra DMA ( UDMA ) interface was the fastest method used to transfer data between the computer ( through the ATA controller ) and an ATA device until Serial ATA.

In the original IBM PC, there was only one Intel 8237 DMA controller capable of providing four DMA channels ( numbered 0-3 ), as part of the so-called Industry Standard Architecture, or ISA.

With the IBM PC / AT, a second 8237 DMA controller was added ( channels 5-7 ; channel 4 is unusable ), and the page register was rewired to address the full 16 MB memory address space of the 80286 CPU.

These symbols, seen on hardware schematics of computer systems with DMA functionality, represent electronic signaling lines between the CPU and DMA controller.

< li > Cascade from XT DMA controller ,</ li >

A PCI architecture has no central DMA controller, unlike ISA.

Like PCI, no central DMA controller is required since the DMA is bus-mastering, but an arbiter is required in case of multiple masters present on the system.

There was a CPU with the 68070 designation, which was a licensed and somewhat slower version of the 16 / 32-bit 68000 with a basic DMA controller, I²C host and an on-chip serial port.

It includes the Enhanced Chip Set and a " display enhancer " for use with a VGA monitor and a DMA SCSI-II controller and hard disk drive.

Under the Amiga architecture, the Agnus ( Alice on AGA models ) coprocessor is the direct memory access ( DMA ) controller.

Since existing DOS programs expected to be able to initiate host-controlled ISA DMA for producing sound, backward compatibility with the older Sound Blaster cards for DOS programs required a software driver work-around ; since this work-around necessarily depended on the virtual 8086 mode of the PC's CPU in order to catch and reroute accesses from the ISA DMA controller to the card itself, it failed for a number of DOS games that either were not fully compatible with this CPU mode or needed so much free conventional memory that they could not be loaded with the driver occupying part of this memory.

Adding the DMA chip improved the speed and IBM PC-compatibility of these earlier Tandy 1000 models.

DMA controllers route data directly between external interfaces and memory, bypassing the processor core and thereby increasing the data throughput of the SoC. Microcontroller-based system on a chip

In order to increase memory bandwidth, the Chip RAM data bus was extended to 32-bit width ( as in the A3000 ) and the Alice chip ( replacing OCS / ECS Agnus ) was improved to be able to support full width access for bitplane DMA.

They successfully ran at the full front side bus speed of 64 MHz, and the improved performance of the video chip was also seen, however various bugs in the sound DMA were reported and general system instability was noted.

A ROM chip boosted the effective memory to, but this is offset by the display's framebuffer, which is shared with the DMA video controller.

A 64 kB ROM chip boosts the effective memory to 576 kB, but this is offset by the display's 22 kB framebuffer, which is shared with the DMA video controller.

In early microcomputers the companion graphics Video Display Controller chip, CDP1861 for the NTSC video format, ( CDP1864 variant for PAL ), used the built-in DMA controller to display bitmapped graphics.

Its main function, in chip area, is the RAM Address Generator and Register Address Encoder which handles all DMA addresses.

The ANTIC chip includes a feature to perform DMA automatically feeding new pixel patterns to CTIA / GTIA as the display is generated.

The resulting decrease in bus traffic was particularly important in systems relying heavily on DMA.

The programmed I / O bus would typically run low to medium-speed peripherals, such as printers, teletypes, paper tape punches and readers, while DMA was used for cathode ray tube screens with a light pen, analog-to-digital converters, digital-to-analog converters, tape drives, disk drives.

A simplified, inexpensive form of DMA called " three-cycle data break " was supported ; this required the assistance of the processor.

DMA was not supplied on the motherboard, but unlike the IBM system, DMA was added by a memory expansion board.

The ADC / DAC, which became known as the " Tandy DAC " in games that supported it, was broadly similar in function to sound devices which connected to the parallel port ( such as the Disney Sound Source ), but unlike those devices it was integrated onto the motherboard, supported DMA transfers and could sample at frequencies up to 48 kHz.

The iBook G3 was the first Mac to use Apple's new " Unified Logic Board Architecture ", which condensed all of the machine's core features into two chips, and added AGP and Ultra DMA support.

Sinclair Broadcast Group owned both the Fox and WB affiliates in the DMA prior to the September 2006 merger of UPN and WB into a newly created CW Network and was forced by Fox to convert its WB affiliate ( WDKA ) into a MyNetworkTV affiliate ( MY49 ).

Menoher instituted a reorganization of the Air Service based on the divisional system of the AEF, eliminating the DMA as an organization, and Mitchell was assigned as Third Assistant Executive, in charge of the Training and Operations Group, Office of Director of Air Service ( ODAS ), in April 1919.

Moving the card off the ISA bus, which was already approaching obsolescence, meant that no line for host-controlled ISA DMA was available, as the PCI slot offers no such line.

The EMU10K2's audio transport ( DMA engine ) was fixed at 16-bit sample precision at 48 kHz ( like the EMU10K1 in the original Live!

Other core features included two 32-bit timers, programmable interrupt controller, I²C interface and a two-channel DMA controller.

Peripherals included a DDR memory controller, a SysAD bus controller, a boot bus controller, a DMA controller and a Hypertransport controller.