SiI3726 SATA Port Multiplier
Data Sheet
Silicon Image, Inc.
SATA Ports
The host port supports the SATA-II speed of 3 Gbps and auto-negotiates to 1.5 Gbps to interface with SATA-I host
controllers. The device ports operate at SATA-II speeds of 3 Gbps or auto-negotiate to 1.5 Gbps. All ports support
hot plug and extended (48 bit LBA) drive capability.
LED Modes
Device/Host LED Modes
Table 1 shows the device or host LED modes and descriptions. The mode is determined by the LED_MODE pin
(pin A3). LED pins are open-drain and sink current up to 12mA in their low voltage active state (LED On), or are
high impedance in their high voltage non-active state (LED Off). These signals will operate with an external pull-
up resistor and LED.
Each activity will turn on or off LED0 for approximately 70ms. The blinking rate is approximately 400ms on and
400ms off.
Table 1: Device or Host LED Modes and Descriptions
LED_MODE
0 (PC mode)
0 (PC mode)
0 (PC mode)
1 (Enterprise mode)
1 (Enterprise mode)
LED1
Off
On
Blink
Off
On
LED0
Off
Off
Blink
Off
Off
Description
Power on, no device attached
PHY communication established, (activity = LED0 On)
Error
Power on, no device
Error
System LED Modes
Table 2 shows the System LED modes and their descriptions.
Table 2: System LED Modes and Descriptions
Signal
LED_S0
EEPROM load error
On: Loading error
Off: No loading errors
System ready
On: System is ready
Off: System is not ready
System error
On: System error
Off: No system errors
Description
LED_S1
LED_S2
In normal operation, if system reset is released, LED_S3 will turn-on while the firmware loads into the SiI 3726
SATA Port Multiplier (~ 1 second). When the firmware load is complete, LED_S1 will turn-on indicating the system
is ready to be used.
© 2006 Silicon Image, Inc.
SiI-DS-0121-C1
8
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