The Education of MassiveProng (Pt 3 of 275) (001/634) (103/634)

FIG. 11 the internal bus 904 is suitably clocked at half or a quarter
of the bus 104 frequency, and higher or lower frequency relationships
are also contemplated.

A bus arbiter 906 on-chip provides arbitration of bus 104 for the MPU
102 of FIG. 5, PPU 110 of FIG. 6, and two external bus masters 210 of
FIG. 7. PPU 110 acts as a bus 104 bus master during DMA cycles for
transfers between bus 104 and a DMA peripheral 910.

One preferred embodiment provides more peripherals that are compatible
with the "PC-AT" architecture. Since the bus 904 provides an on-chip
.

Relevant Pages

  • The Education of MassiveProng (Pt 3 of 275) (001/634) (127/634)
    ... Internal bus controller 1206 ... slave devices connected to the internal bus 904 is performed by those ... arbiter 906 receives bus request signals from bus 104 via two pins ...
    (sci.electronics.design)
  • Re: ATA driver for PXA27x (CE5.0)
    ... In that case you set up the registry for the disk to load as a built-in ... device on the internal bus at the address it's using and the IRQ it uses. ... The ATAPI DMA support assumes a bus mastering DMA on the controller. ...
    (microsoft.public.windowsce.platbuilder)