Signal characteristics, Device control codes | Seagate ST3600057FC

10.5.12Device control codes

The drive inputs a Device Control Code on the DEV_CTRL_CODE lines at power up to determine the link rate on the Fibre Channel ports. Both ports run at the same rate. If the backpanel does not connect to these lines, the drive has 10K ohm pull up resistors that default the device control code to 7 (1.0625 GHz). Table lists the supported codes.

Table 28:	Device control code values

2 (pin 17)		1 (pin 18)	0 (pin 39)	Definition

0		0	0	Reserved for power failure warning.

0		0	1	Reserved for auto negotiation of link rate.

0		1	0	Reserved.

0		1	1	Reserved.

1		0	0	Reserved.

1		0	1	4.250 GHz operation on both ports.

1		1	0	2.125 GHz operation on both ports.

1		1	1	1.0625 GHz operation on both ports.

10.6Signal characteristics

This section describes the electrical signal characteristics of the drive’s input and output signals. See Table 24 on page 65 for signal type and signal name information.

10.6.1TTL input characteristics Table 29 provides the TTL characteristics.

Table 29: TTL characteristics

State	Voltage		Current

Input high	1.9	< VIH < 5.5V	IIH = ±500nA max.

Input low	-0.5V < VIL < 0.9V		IOL = ±500nA max.

Output high (-EN Bypass A, B)	2.4	< VOH < 5.25V	IOH < -3mA

Output low (-EN Bypass A, B)	VOL < 0.5V		IOL < 3mA

Output high (-Parallel ESI)	2.4	< VOH < 0.9 VCC	IOH < -2.4mA
	VOH > 0.9VCC		IOH < -500µA
Output low (-Parallel ESI)	0 < VOL < .45V		IOL < 2.4mA

Output high (all other outputs)	2.4	< VOH < 0.9 VCC	IOH < -1.6mA
	VOH > 0.9VCC		IOH < -500µA
Output low (all other outputs)	0 < VOL < .45V		IOL < 1.6mA

70	Cheetah 15K.7 FC Product Manual, Rev. A

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Seagate ST3600057FC manual Signal characteristics, Device control codes

Contents

Cheetah 15K.7 FC Standard models Self-Encrypting Drive modelsPage Contents Defect and error management InstallationAbout self-encrypting drives Interface requirements Seagate Technology support services Cheetah 15K.7 FC Product Manual, Rev. a Scope Model Number Capacity Self-Encrypting Drive SED Applicable standards and reference documentation StandardsElectromagnetic compatibility Electromagnetic susceptibility European Union Restriction of Hazardous Substances RoHS Reference documents Ncits TR-20 General description Standard features Media description PerformanceReliability Formatted capacities User-installed accessories Factory-installed optionsProgrammable drive capacity Performance characteristics Internal drive characteristicsSeek performance characteristics Access time Start/stop time General performance characteristicsPrefetch/multi-segmented cache control Cache operation Caching write data Prefetch operation Reliability specifications Error ratesRecoverable Errors Unrecoverable Errors Reliability and service Seek errorsInterface errors Preventive maintenance 4 S.M.A.R.T Controlling S.M.A.R.TPerformance impact Milliseconds Temperature Log Page 0Dh Determining ratePredictive failures Thermal monitor State of the drive prior to testing Drive Self Test DSTDST failure definition Implementation Short and extended tests Short test Function Code 001bExtended test Function Code 010b Log page entries Shipping Product warrantyProduct repair and return information AC power requirements Physical/electrical specificationsDC power requirements ST3600057FC DC power requirements Gbit Amps ST3450857FC DC power requirements Gbit Amps General DC power requirement notes ST3300657FC DC power requirements Gbit Amps Conducted noise immunity Power sequencingCurrent profiles Typical ST3450857FC current profiles Typical ST3300657FC current profiles Power dissipation 600GB model 450GB models Environmental limits Temperature a. Operating300GB models Relative humidity Effective altitude sea level a. Operating Shock and vibration Package size Packaged/product weight Drop heightShock Recommended mounting Air cleanliness Vibration a. Operating-normalAcoustics Corrosive environment RoHS compliance statement Electromagnetic susceptibility See Section Mechanical specifications Mounting configuration dimensions Controlled access Admin SPAbout self-encrypting drives Data encryption Default password Random number generator RNGDrive locking Data bands Authenticated firmware download Power requirementsSupported commands Cryptographic erase Drive internal defects/errors Defect and error managementDrive error recovery procedures Page FC-AL system errors These values are subject to change Media Pre-Scan Background Media ScanDeferred Auto-Reallocation Idle Read After Write Drive ID/option selection InstallationDrive orientation Cooling Air flow Drive mounting Grounding FC-AL features Fibre Channel link service framesLink services supported Type of frame Interface requirements Fibre Channel task management responses Fibre Channel task management functionsFC Scsi FCP response codes Function name Response code Fibre Channel port login NPort login Plogi payload Bytes NPort Login Accept ACC payload Bytes Fibre Channel port login acceptProcess Login Plri payload Fibre Channel Process Login Accept Fibre Channel fabric loginProcess Login Accept ACC payload Bytes Fabric Login Flogi payload Bytes Fibre Channel fabric accept login Fabric Login Accept ACC payload Bytes Scsi commands supported Dual port supportFibre Channel Arbitrated Loop options FC-AL options supported Supported commands Cheetah 15K.7 FC Product Manual, Rev. a Cheetah 15K.7 FC Product Manual, Rev. a Background Medium Scan 15h Inquiry data Mode Sense dataCheetah 15K.7 FC inquiry data Bytes Data hex Page Mode Data Header Block Descriptor Ec b2 5c 00 00 02 Miscellaneous operating features and conditions Miscellaneous featuresSupported Feature or condition Miscellaneous status FC-AL physical interface Physical characteristicsPhysical description Electrical description Connector requirementsPin descriptions Pin Signal name Signal type FC-SCA pin descriptions Pin Signal name Signal typeFC-AL transmitters and receivers Power Fault LED Out Active LED Out Enable port bypass signalsMotor start controls Parallel Enclosure Services Interface ESI 10.5.11 SEL6 through SEL0 ID lines Arbitrated loop physical address Alpa values SettingHex Dec TTL input characteristics provides the TTL characteristics Signal characteristicsDevice control codes FC Differential output LED driver signalsFC Differential input Receive eye diagram Eye diagram data values Link rate GHz Presales Support Seagate Technology support servicesTechnical Support Data Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Index Numerics Devctrlcode FCP Mtbf Page See also cooling Page Cheetah 15K.7 FC Product Manual, Rev. a Page Seagate Technology LLC