Series Termination Required For Ultra Dma; Ultra Dma Termination With Pull-Up Or Pull-Down; Recommended Series Termination For Ultra Dma - Fujitsu MPA3017AT Product Manual

5.5.6

Series termination required for Ultra DMA

Series termination resistors are required at both the host and the device for operation in any of the
Ultra DMA Modes. The following table describes recommended values for series termination at
the host and the device.
Table 5.11 Recommended series termination for Ultra DMA
DIOR-:HDMARDY-:HSTROBE
DIOW-:STOP
CS0-, CS1-
DA0, DA1, DA2
DMACK-
DD15 through DD0
DMARQ
INTRQ
IORDY:DDMARDY-:DSTROBE
Note: Only those signals requiring termination are listed in this table. If a signal
is not listed, series termination is not required for operation in an Ultra DMA
Mode. For signals also requiring a pull-up or pull-down resistor at the host see
Figure 5.8.
Figure 5.8
5 - 72
Signal Host Termination

Ultra DMA termination with pull-up or pull-down

C141-E034-02EN
Device Termination
33 ohm 82 ohm
33 ohm 82 ohm
33 ohm 82 ohm
33 ohm 82 ohm
33 ohm 82 ohm
33 ohm 33 ohm
82 ohm 33 ohm
82 ohm 33 ohm
82 ohm 22 ohm