Device Terminating Write Dma; Figure 46. Ultra Dma Cycle Timings (Device Terminating Write) - IBM IC25N040ATCS04 - Travelstar 40 GB Hard Drive Specifications

7.9.7 Device Terminating Write DMA

DMARQ
DMACK-
STOP
DDMARDY-
HSTROBE
DD(15:0)
PARAMETER DESCRIPTION
DDMARDY- to final HSTROBE
tRFS
time
tRP Ready to pause time
tLI Limited interlock time
tMLI Interlocking time with minimum
tDS CRC word setup time at device
tDH CRC word hold time at device
tACK Hold time for DMACK-
Maximum time before releasing
tIORDYZ
IORDY

Figure 46. Ultra DMA cycle timings (Device Terminating Write)

tRP
tRFS
tLI
xxx WT Data xxxxxxxxxxxxxxxxxxxxxxxxxx
MODE 0
MIN
(ns)
–
160
0
20
15
5
20
–
Travelstar 60GH & 40GN hard disk drive specifications
tLI tMLI
tIORDYZ
Host drives DD
MODE 1 MODE 2
MAX MIN MAX MIN MAX
(ns) (ns) (ns) (ns) (ns)
75 – 70 –
– 125 – 100
150 0 150 0 150
– 20 – 20
– 10 – 7
– 5 – 5
– 20 – 20
20 – 20 –
56
tACK
tACK
tDH
tDS
CRC xxxxxxxxxx
MODE 3 MODE 4
MIN MAX MIN MAX
(ns) (ns) (ns) (ns)
60 – 60 – 60
– 100 – 100 –
0 100 0 100
– 20 – 20 –
– 7 – 5 –
– 5 – 5 –
– 20 – 20 –
20 – 20 – 20
MODE 5
MIN MAX
(ns) (ns)
– 50
85 –
0 75
20 –
4 –
4.6 –
20 –
– 20