FUJITSU Disk Drives MHJ2181AT - Manual (Page 183)

Interface
5-110 C141-E088-01EN
5.6.3.6 Host terminating an Ultra DMA data in burst
5.6.3.2 contains the values for the timings for each of the Ultra DMA Modes.
Note: The definitions for the STOP, HDMARDY- and DSTROBE signal
lines are no longer in effect after DMARQ and DMACK are
negated.
Figure 5.16 Host terminating an Ultra DMA data in burst