STANDBY - E2h, Non-Data

STANDBY - E2h, Non-Data

Inputs:

Register		7	6	5	4	3	2	1	0
Features	Current	N/A
	Previous	N/A
Sector Count	Current	This value shall determine the time period programmed into the Standby timer.
	Previous	N/A
LBA Low	Current	N/A
	Previous	N/A
LBA Mid	Current	N/A
	Previous	N/A
LBA High	Current	N/A
	Previous	N/A
Device		obs	N/A	obs	TD	Reserved
Command		E2h

Standby timer periods table

Count field	Description
00h	Standby time disabled
01h-F0h	(value * 5) seconds (i.e., 5 seconds to 1 200 seconds (i.e., 20 minutes))
F1h-FBh	((value - 240) * 30) minutes (i.e., 30 minutes to 330 minutes (i.e., 5.5 hours))
FCh	21 minutes
FDh	Between 8 hours and 12 hours
FEh	Reserved
FFh	21 minutes 15 seconds
Note - Times are approximate.

Transport Dependent (TD): All bits and fields that are labeled transport dependent are defined in the transport standards.

Normal Outputs:

Register		7	6	5	4	3	2	1	0
Error		N/A
Sector Count	HOB = 0	N/A
	HOB = 1	N/A
LBA Low	HOB = 0	N/A
	HOB = 1	N/A
LBA Mid	HOB = 0	N/A
	HOB = 1	N/A
LBA High	HOB = 0	N/A
	HOB = 1	N/A
Device		obs	na	obs	TD	Reserved
Status		TD		DF	na	TD	na	na	ERR

Device Fault bit: If the device enters a condition where continued operation may affect user data integrity (e.g., failure to spin-up without error, or no spares remaining for reallocation), then the device shall set the Device Fault bit to one and no longer accept commands. This condition is only cleared by power cycling the device. Once the Device Fault bit has been cleared to zero it may remain clear until a command that affects user data integrity is received by the device.

Error bit: The Error bit shall be set to one if any bit in the Error field is set to one.

Error Outputs:

Register		7	6	5	4	3	2	1	0
Error		N/A
Sector Count	HOB = 0	N/A
	HOB = 1	N/A
LBA Low	HOB = 0	N/A
	HOB = 1	N/A
LBA Mid	HOB = 0	N/A
	HOB = 1	N/A
LBA High	HOB = 0	N/A
	HOB = 1	N/A
Device		obs	na	obs	TD	Reserved
Status		TD		DF	na	TD	na	sda	ERR

Sense Data Available:

The Sense Data Available bit shall be set to one if:

a)   IDENTIFY DEVICE data word 119 bit 6 is set to one;

b)   IDENTIFY DEVICE data word 120 bit 6 is set to one; and

c)   the device has sense data to report after processing any command.

The Sense Data Available bit is obsolete if:

a)   IDENTIFY DEVICE data word 119 bit 6 is cleared to zero; or

b)   IDENTIFY DEVICE data word 120 bit 6 is cleared to zero.