sata port

 

 


Data

 

Diagram

1
L
7

Cable

它有共有兩組 cable. A 一組, B 一組 (shielded differential pairs)

Pin

  • 1     Ground
  • 2     A+ (transmit)
  • 3     A− (transmit)
  • 4     Ground
  • 5     B− (receive)
  • 6     B+ (receive)
  • 7     Ground

Power

 

此 port 有 3.3V, 5V 及 12V 供電

 * 它與  data port 係相反 pinout (1在L底)

Diagram

15
L
1

Pin

  • 1,2,3        3.3V (orange)
  • 4,5,6        Gnd (black)
  • 7,8,9        5V (red)
  • 10            Gnd (black)
  • 11            Staggered spinup/activity (Optional)
  • 12            Gnd (black)
  • 13,14,15  12V (yellow)

Staggered spin-up (SSU)

 - can be employed to prevent the excessive power-consumption of spin-up

 - starts one drive at a time, either waiting for the drive to signal it is ready or allowing a predefined period of time to pass before starting the next drive.

 - it does not require any special commands to get the drive to spin-up.

過程

When the drive is initially powered on, the drive senses whether Pin 11 is left floating (high or '1' logic state) or grounded (low or '0' logic state).

SSU is disabled when Pin 11 is grounded.

 => When disabled, the drive will spin-up as soon as power is applied to it.

SSU is enabled when Pin 11 is left floating or driven high (high or '1' logic state).

 => The drive will not spin-up until the SATA Phy Interface becomes active with a connection to a SATA controller