VSC7173XYI 查看數據表（PDF） - Maxim Integrated

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VSC7173XYI

Enhanced 2:1 Port Selector and 1:2 Port Multiplier for Serial ATA and Serial Attached SCSI

Maxim Integrated 

VSC7173

Data Sheet

PORTSEL0,

PORTSEL1

tPW

tPW

PORTSEL0

tPSS

tPSS

PORTSEL1

tSW

tSW

tSW

Active Host Port

(Port 0 or Port 1)

* Edge sensitive sideband operation shown in timing diagram.

Note: Edge-sensitive operation shown.

Figure 8. Timing Waveform for Port Switching

Table 10. Port Switch Timing

Symbol

tPW

tPSS

tSW

Parameter

Pulse width of the port selection pins

(PORTSEL0, PORTSEL1).

Separation between rising edge transitions of the

port selection pins.

Switch time. The time required to make the other

host port active following an active edge

transition of the port selection pins.

Minimum

4.0

5.0

Maximum

5.0

Unit Condition

ns

ns Edge-sensitive operation

ns Applies to both level and

edge-sensitive operations

Revision 4.1

May 23, 2005

10 of 17

Confidential

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