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Barracuda 5400.1 Product Manual, Rev. F, Set Features command

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36 Barracuda 5400.1 Product Manual, Rev. F 4.1.3 Set Features command This command (EFH) controls the implementation of various features that the drive supports. When the drive receives this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an interrupt. If the value in the register does not represent a feature that the drive supports, the command is aborted. Power-on default has the read look-ahead and write caching features enabled. The acceptable values for the Features register are defined as follows: 02H Enable write cache (default). 03H Set transfer mode (based on value in Sector Count register). Sector Count register values: 00H Set PIO mode to default (PIO mode 2). 01H Set PIO mode to default and disable IORDY (PIO mode 2). 08H PIO mode 0 09H PIO mode 1 0AH PIO mode 2 (default) 0BH PIO mode 3 0CH PIO mode 4 20H Multiword DMA mode 0 21H Multiword DMA mode 1 22H Multiword DMA mode 2 40H Ultra DMA mode 0 41H Ultra DMA mode 1 42H Ultra DMA mode 2 43H Ultra DMA mode 3 44H Ultra DMA mode 4 45H Ultra DMA mode 5 55H Disable read look-ahead (read cache) feature. 82H Disable write cache. AAH Enable read look-ahead (read cache) feature (default).

Section	Page
1.0 Introduction 1	5
2.0 Drive specifications 3	5
2.1 Specification summary table 3	5
2.2 Formatted capacity 6	5
2.3 Default logical geometry 6	5
2.4 Physical organization 6	5
2.5 Recording and interface technology 7	5
2.6 Physical characteristics 7	5
2.7 Seek time 8	5
2.8 Start/stop times 8	5
2.9 Power specifications 8	5
2.9.1 Power consumption 9	5
2.9.2 Conducted noise 12	5
2.9.3 Voltage tolerance 12	5
2.9.4 Power-management modes 12	5
2.10 Environmental specifications 13	5
2.10.1 Ambient temperature 13	5
2.10.2 Temperature gradient 14	5
2.10.3 Humidity 14	5
2.10.4 Altitude 14	5
2.10.5 Shock 15	5
2.10.6 Vibration 15	5
2.11 Acoustics 16	5
2.12 Electromagnetic immunity 17	5
2.13 Reliability 17	5
2.14 Agency certification 18	5
2.14.1 Safety certification 18	5
2.14.2 Electromagnetic compatibility 18	5
2.14.3 FCC verification 19	5
3.0 Configuring and mounting the drive 21	5
3.1 Handling and static discharge precautions 21	5
3.2 Breather filter hole precautions 22	5
3.3 Jumper settings 23	5
3.3.1 Master/slave configuration 23	5
3.3.2 Cable select option 23	5
3.3.3 Ultra ATA/100 cable 24	5
3.4 Drive mounting 24	5
4.0 ATA interface 27	5
4.1 ATA interface signals and connector pins 27	5
4.1.1 Supported ATA commands 29	6
4.1.2 Identify Device command 31	6
4.1.3 Set Features command 36	6
4.1.4 S.M.A.R.T. commands 38	6
5.0 Seagate Technology support services 39	6
Figure 1. Typical 5V startup and operation current profile 11	7
Figure 2. Typical 12V startup and operation current profile 11	7
Figure 3. Breather filter hole location 22	7
Figure 4. Master/slave jumper settings 23	7
Figure 5. Ultra ATA cable connectors 24	7
Figure 6. Mounting dimensions-top, side and end view 25	7
Figure 7. I/O pins and supported ATA signals 28	7
1.0 Introduction	9
2.0 Drive specifications	11
2.1 Specification summary table	11
2.2 Formatted capacity	14
2.3 Default logical geometry	14
2.4 Physical organization	14
2.5 Recording and interface technology	15
2.6 Physical characteristics	15
2.7 Seek time	16
2.8 Start/stop times	16
2.9 Power specifications	16
2.9.1 Power consumption	17
2.9.1.1 Typical current profile	19
2.9.2 Conducted noise	20
2.9.3 Voltage tolerance	20
2.9.4 Power-management modes	20
2.10 Environmental specifications	21
2.10.1 Ambient temperature	21
2.10.2 Temperature gradient	22
2.10.3 Humidity	22
2.10.3.1 Relative humidity	22
2.10.3.2 Wet bulb temperature	22
2.10.4 Altitude	22
2.10.5 Shock	23
2.10.5.1 Operating shock	23
2.10.5.2 Nonoperating shock	23
2.10.6 Vibration	23
2.10.6.1 Operating vibration	23
2.10.6.2 Nonoperating vibration	23
2.11 Acoustics	24
2.12 Electromagnetic immunity	25
2.13 Reliability	25
2.14 Agency certification	26
2.14.1 Safety certification	26
2.14.2 Electromagnetic compatibility	26
2.14.3 FCC verification	27
3.0 Configuring and mounting the drive	29
3.1 Handling and static discharge precautions	29
3.2 Breather filter hole precautions	30
3.3 Jumper settings	31
3.3.1 Master/slave configuration	31
3.3.2 Cable select option	31
3.3.3 Ultra ATA/100 cable	32
3.4 Drive mounting	32
4.0 ATA interface	35
4.1 ATA interface signals and connector pins	35
4.1.1 Supported ATA commands	37
4.1.2 Identify Device command	39
4.1.3 Set Features command	44
4.1.4 S.M.A.R.T. commands	46
5.0 Seagate Technology support services	47
A	53
B	53
C	53
D	53
E	53
F	53
G	54
H	54
I	54
J	54
K	54
L	54
M	54
N	54
O	54
P	54
R	55
S	55
T	55
U	56
V	56