5.3 Host Commands
C141-E171-03EN
5-35
Table 5.4 Information to be read by IDENTIFY DEVICE command (2 of 3)
Word
Value
Description
27-46
Set by a device
Model name (ASCII code, 40 characters, left)
47
X’8010’
Maximum number of sectors per interrupt on READ/WRITE
MULTIPLE command
48
X’0000’
Reserved
49
X’0B00’
Capabilities *3
50
X’400x’
Capabilities *20
51
X’0200’
PIO data transfer mode *4
52
X’0200’
Reserved
53
X’0007’
Enable/disable setting of words 54-58 and 64-70, 88 *5
54
(Variable)
Number of current Cylinders
55
(Variable)
Number of current Head
56
(Variable)
Number of current sectors per track
57-58
(Variable)
Total number of current sectors
59
*6
Transfer sector count currently set by READ/WRITE
MULTIPLE command *6
60-61
*2
Total number of user addressable sectors (LBA mode only) *2
62
X’0000’
Reserved
63
X’xx07’
Multiword DMA transfer mode *7
64
X’0003’
Advance PIO transfer mode support status *8
65
X’0078’
Minimum multiword DMA transfer cycle time per word :
120 [ns]
66
X’0078’
Manufacturer’s recommended DMA transfer cycle time : 120
[ns]
67
X’00F0’
Minimum PIO transfer cycle time without IORDY flow control
: 240 [ns]
68
X’0078’
Minimum PIO transfer cycle time with IORDY flow control :
120 [ns]
69-79
X’0000’
Reserved
80
X’007C’
Major version number *9
81
X’0019’
Minor version number
82
X’346B’
Support of command sets *10
83
X’7x28’
Support of command sets *11
84
X’40xx’
Support of command sets/function *12
85
*13
Valid of command sets/function *13
Summary of Contents for MHS2020AT
Page 1: ...C141 E171 03EN MHS2060AT MHS2040AT MHS2030AT MHS2020AT DISK DRIVES PRODUCT MANUAL ...
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Page 60: ...Theory of Device Operation 4 6 C141 E171 03EN Figure 4 3 Circuit Configuration ...
Page 190: ...Interface 5 114 C141 E171 03EN g d f f d e Figure 5 7 Normal DMA data transfer ...
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