Hitachi DK23EA Specifications - Page 39

Minimum PIO Transfer Cycle Time without Flow Controlns - - 60

Page 39 highlights

Word Table 6.5 Identify Device Information (Continued) Description 50 51 52 53 54 55 56 57-58 59 60-61 62 63 64 65 66 67 68 69-74 75 76-79 Capabilities Bit 15 0 (fixed) Bit 14 1 (fixed) Bit 13 - 1 0 = Reserved Bit 0 1 = Standby timer value is equal to or greater than 5 minutes. Reserved. Bit 15 - 8 PIO data transfer cycle timing mode Bit 7 - 0 Vendor Specific Bit 15 - 8 DMA data transfer cycle timing mode Bit 7 - 0 Vendor Specific Field validity Bit 15 - 3 0 = Reserved Bit 2 1 = The field reported in word 88 is valid Bit 1 1 = The fields reported words 64-70 are valid Bit 0 1 = The fields reported words 54-58 are valid Number of current cylinders Number of current heads Number of current sectors per track Current capacity in sectors Multiple sector setting Bit 15-90 = Reserved Bit 8 1 = Multiple sector setting is valid Bit 7 - 0Current setting for number of sectors that can be transferred per interrupt on R/W MULTIPLE command Total addressable LBA Single word DMA transfer Bit 15 - 8 Single word DMA transfer mode active Bit 7 - 0Single word DMA transfer mode supported Multi-word DMA transfer Bit 15 - 8 Multi-word DMA transfer mode active Bit 7 - 0Multi-word DMA transfer mode supported Flow control PIO transfer Modes supported Bit 15 - 2 0 = Reserved Bit 1 1 = PIO Mode 4 supported Bit 0 1 = PIO Mode 3 supported Minimum Multi-word DMA Transfer Cycle Time Per Word(ns) Manufacturer's Recommended Multi-word DMA Cycle Time(ns) Minimum PIO Transfer Cycle Time without Flow Control(ns) Minimum PIO Transfer Cycle Time with IORDY(ns) Reserved Queue Depth Bit 15 - 5 0 = Reserved Bit 4 - 0 Maximum queue depth Reserved Value (HEX.) 4000h 0200h 0200h 0007h See table 6.6 0003h 0078h 0078h 0190h 0078h 0000h 0000h 0000h K6602637 Rev.3 02.27.01 - 39 -

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K6602637
Rev.3
02.27.01
- 39 -
Table 6.5 Identify Device Information (
Continued)
Word
Description
Value
(HEX.)
50
Capabilities
Bit 15
0 (fixed)
Bit 14
1
(fixed)
Bit 13 - 1
0 = Reserved
Bit 0
1 = Standby timer value is equal to or greater than
5 minutes. Reserved.
4000h
51
Bit 15 - 8
PIO data transfer cycle timing mode
Bit 7 - 0
Vendor Specific
0200h
52
Bit 15 – 8
DMA data transfer cycle timing mode
Bit 7 – 0
Vendor Specific
0200h
53
Field validity
Bit 15 - 3
0 = Reserved
Bit 2
1 = The field reported in word 88 is valid
Bit 1
1 = The fields reported words 64-70 are valid
Bit 0
1 = The fields reported words 54-58 are valid
0007h
54
Number of current cylinders
55
Number of current heads
56
Number of current sectors per track
57-58
Current capacity in sectors
59
Multiple sector setting
Bit 15-90 = Reserved
Bit 8
1 = Multiple sector setting is valid
Bit 7 - 0Current setting for number of sectors that can be
transferred per interrupt on R/W MULTIPLE command
60-61
Total addressable LBA
See table 6.6
62
Single word DMA transfer
Bit 15 - 8
Single word DMA transfer mode active
Bit 7 - 0Single word DMA transfer mode supported
63
Multi-word DMA transfer
Bit 15 - 8
Multi-word DMA transfer mode active
Bit 7 - 0Multi-word DMA transfer mode supported
64
Flow control PIO transfer Modes supported
Bit 15 - 2
0 = Reserved
Bit 1
1 = PIO Mode 4 supported
Bit 0
1 = PIO Mode 3 supported
0003h
65
Minimum Multi-word DMA Transfer Cycle Time Per Word(ns)
0078h
66
Manufacturer's Recommended Multi-word DMA Cycle Time(ns)
0078h
67
Minimum PIO Transfer Cycle Time without Flow Control(ns)
0190h
68
Minimum PIO Transfer Cycle Time with IORDY(ns)
0078h
69-74
Reserved
0000h
75
Queue Depth
Bit 15 - 5
0 = Reserved
Bit 4 - 0
Maximum queue depth
0000h
76-79
Reserved
0000h