Maxtor 5T010H1 User Manual Page 30
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AT INTERFACE DESCRIPTION
5 – 5
Ultra DMA TimingUltra DMA Timing
Ultra DMA TimingUltra DMA Timing
Ultra DMA Timing
TIMING PARAMETERS
(all times in nanoseconds)
MODE 0 MODE 1 MODE 2 MODE 3 MODE 4 MODE 5
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
t
CYC
C
y
cle Time (from STROBE ed
g
e to STROBE ed
g
e) 112 73 54 39 25 16.8
t2
CYC
Two c
y
cle time (from risin
g
ed
g
e to next risin
g
ed
g
e or
from fallin
g
ed
g
e to next fallin
g
ed
g
e of STROBE)
230 153 115 86 57 38
t
DS
Data setup time (at recipient) 15 10 7 7 5 4
t
DH
Data hold time (at recipient) 5 5 5 5 5 4.6
t
DVS
Data valid setup time at sender (time from data bus bein
g
valid until STROBE ed
g
e)
70 48 31 20 6.7 4.8
t
DVH
Data valid hold time at sender (time from STROBE ed
g
e
until data ma
y
g
o invalid)
6.2 6.2 6.2 6.2 6.2 4.8
t
FS
First STROBE (time for device to send fi rst STROBE) 0 230 0 200 0 170 0 130 0 120 0 90
t
LI
Limited interlock time (time allowed between an action b
y
one a
g
ent, either host or device, and the followin
g
action
b
y
the other a
g
ent)
0 150 0 150 0 150 0 100 0 100 0 75
t
ML I
Interlock time with minimum 20 20 20 20 20 20
t
UI
Unlimited interlock time 000000
t
AZ
Maximum time allowed for outputs to release 10 10 10 10 10 10
t
ZAH
Minimum dela
y
time required for output drivers turnin
g
on
(from released state)
20 20 20 20 20 20
t
ZAD
000000
t
ENV
Envelope time (all control si
g
nal transitions are within the
DMACK envelope b
y
this much time)
20 70 20 70 20 70 20 55 20 55 20 50
t
SR
STROBE to DMARDY (response time to ensure the
s
y
nchronous pause case when the recipient is pausin
g
)
50 30 20 NA NA NA
t
RFS
Read
y
-to-final-STROBE time (no more STROBE ed
g
es
ma
y
be sent this lon
g
after receivin
g
DMARDY- ne
g
ation)
75 70 60 60 60 50
t
RP
Read
y
-to-pause time (time until a recipient ma
y
assume
that the sender has paused after ne
g
ation of DMARDY-)
160 125 100 100 100 85
t
IORDYZ
Pull-up time before allowin
g
IORDY to be releas ed 20 20 20 20 20 20
t
ZIORDY
Minimum time device shall wait before drivin
g
IORDY000000
t
ACK
Setup and hold times before assertion and ne
g
ation of
DMACK-
20 20 20 20 20 20
t
SS
Time from STROBE ed
g
e to STOP assertion when the
sender is stoppin
g
50 50 50 50 50 50
DMARQ
(device)
DMACK-
(host)
STOP
(host)
HDMARDY-
(host)
DSTROBE
(device)
DD(15:0)
t
ZAD
DA0, DA1, DA2,
CS0-, CS1-
t
UI
t
ZAD
t
ACK
t
ACK
t
ENV
t
ENV
t
ZIORDY
t
FS
t
FS
t
VDS
t
AZ
t
DVH
t
ACK
Figure 5 - 4
Initiating an Ultra DMA Data In Burst
- 5T020H2, 5T010H1 1
- ContentsContents 4
- Contents 4
- FiguresFigures 8
- IntroductionIntroduction 9
- Introduction 9
- ConventionsConventions 10
- Conventions 10
- SECTION 2 11
- Functional / Interface 12
- Cache Management 13
- Major HDA Components 14
- Figure 2-1 15
- Product Specifications 16
- Physical Dimensions (maximum) 17
- PRODUCT SPECIFICATIONS 18
- Handling and Installation 21
- Unpacking and Inspection 22
- Figure 4 - 2 23
- Figure 4 - 3 23
- INSTALLATION 24
- SECTION 5 26
- Pin Description Table 27
- PIO TimingPIO Timing 28
- PIO Timing 28
- DMA TimingDMA Timing 29
- DMA Timing 29
- Ultra DMA Timing 30
- Figure 5 - 5 31
- Figure 5 - 6 31
- Figure 5 - 7 32
- Figure 5 - 8 32
- Figure 5 - 9 33
- Figure 5 - 10 33
- Figure 5 - 11 34
- Figure 5 - 12 34
- Figure 5 - 13 35
- Host Software Interface 36
- Select LBA Mode 37
- Command Register 38
- SummarySummary 39
- Control Diagnostic Registers 40
- Reset and Interrupt Handling 41
- Interface Commands 42
- Read CommandsRead Commands 43
- Read Commands 43
- INTERFACE COMMANDS 44
- Write CommandsWrite Commands 45
- Write Commands 45
- Mode Set/Check Commands 47
- Power Mode Commands 49
- Default Power-on Condition 50
- Initialization Commands 51
- Initialize Drive Parameters 54
- ERROR CODE DESCRIPTION 55
- 01 No error detected 55
- 00 Master drive failed 55
- 81 Slave drive failed 55
- S.M.A.R.T. Command Set 56
- Service and Support 57
- (Singapore time is GMT +8) 58
- GlossaryGlossary 59
- Glossary 59
- SEEK TIMESEEK TIME 63
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