Host Terminating Read Dma; Figure 40. Ultra Dma Cycle Timing (Host Terminating Read) - IBM DJSA-210 - Travelstar 10 GB Hard Drive Specifications

7.9.1

Host Terminating Read DMA

DMARQ
DMACK-
STOP
HDMARDY-
DSTROBE
DD(15:0)
PARAMETER DESCRIPTION
tRFS HDMARDY- to final DSTROBE time
tRP Ready to pause time
tLI Limited interlock time
tAZ Maximum time allowed for output drivers
to release
tZAH Minimum delay time required for output
tMLI Interlock time with minimum
tDS CRC word setup time at device
tDH CRC word hold time at device
tACK Hold time for DMACK-
tIORDYZ Maximum time before releasing IORDY

Figure 40. Ultra DMA cycle timing (Host Terminating Read)

tRP
tRFS
xxxxxxxxxxxxxxxxxx
xxx RD Data
Device drives DD
Travelstar 32GH/30GT/20GN hard disk drive specifications
tLI
tMLI
tLI tIORDYZ
tAZ
tZAH
MODE 0 MODE 1
MIN MAX MIN MAX
(ns) (ns) (ns)
– 75 –
160 – 125
0 150 0
– 10 –
20 – 20
20 – 20
15 – 10
5 – 5
20 – 20
– 20 –
51
tACK
tACK
tDH
tDS
xxx CRC xxxxxxxxxxx
Host drives DD
MODE 2 MODE 3
MIN MAX MIN MAX
(ns) (ns) (ns) (ns) (ns)
70 – 60 – 60
– 100 – 100 –
150 0 150 0 100
10 – 10 – 10
– 20 – 20 –
– 20 – 20 –
– 7 – 7 –
– 5 – 5 –
– 20 – 20 –
20 – 20 – 20
MODE 4
MIN MAX
(ns) (ns)
– 60
100 –
0 100
– 10
20 –
20 –
5 –
5 –
20 –
– 20