Fujitsu MHY2060BH 用户手册

 

5-8 

C141-E262 

The disk drive supports the following functions when P11 pin in the power supply 
segment of interface connector is used as an input or output pin. 

P11 pin supports the functions as follows: 

• 

Staggered Spin-up: 

Use P11 as an input pin 

• 

Driving Activity LED:  

Use P11 as an output pin 

The following is P11 setting and hardware requirement for these functions. 

It is able to set whether the disk drive spins up at power on or not, by input 
voltage level of 11th pin at the power supply segment on the interface connector. 

a) P11 

→ Open (no connection): 

Staggered Mode Enable. 

 

The disk drive does not spin up until after 

                                                          successful  Phy initialization at power on.   
                                                          (Default setting) 

b) P11 

→  Grounded (0.8 V or less):  Staggered Mode Disable. 

                                                         The disk drive spins up at power on. 

c) P11 

→ "High" level (The P11 line in the host system is pulled up by  

 

resistor [recommended value: 1 to 5.1 k

Ω] to power supply in the  

 

host system [Recommended voltage: 2V (3.3V or less)]:  

 

 

Staggered Mode Enable 

 

 

The drive does not spin up until after  

 

 

successful Phy initialization at power on. 

It is possible that the disk drive is able to drive P11 pin as output for indication of 
Activity LED. 

a)  P11 output level 

→  "Low":  It indicates that the command is in execution. 

 

(LED is on) 

b)  P11 output level 

→  "High":  It indicates that the command is not  

 

in execution. (LED is off) 

It is necessary to meet the requirements for P11 as output pin in case of driving 
Activity LED.