Technical information

Functional Overview
2.7U LAN Interface
Rev.1.01 2008.05.07 2-25
REJ11J0012-0101
2
The PHY controller operation mode SW (SW1) mounted on the SH7670 CPU board is the switch that determines
the operation mode of Ethernet PHY controller mounted on the SH7670 CPU board. This switch is set to Low (0V) in
ON, and High (3.3V) in OFF.
Table 2.7.1 lists the description for PHY controller operating mode SW function.
Table 2.7.1 PHY Controller Operating Mode SW Function
Number Setting Function Initial Value
ON ISOLATE = “L” Isolate Disable Initial value SW1-1
ISOLATE
OFF ISOLATE = “H” Isolate Enable
ON RPTR = “L” Repeater mode Disable Initial value SW1-2
RPTR
OFF RPTR = “H” Repeater mode Enable
ON SPEED = “L” 100 Mbps Disable SW1-3
SPEED
OFF SPEED = “H” 100 Mbps Enable Initial value
ON DUPLEX = “L” Full Duplex Disable SW1-4
DUPLEX
OFF DUPLEX = “H” Full Duplex Enable Initial value
ON ANE = “L” Auto-negotiation Disable SW1-5
ANE
OFF ANE = “H” Auto-negotiation Enable Initial value
ON LDPS = “L” LDPS mode Disable Initial value SW1-6
LDPS
OFF LDPS “H” LDPS mode Enable
Note: SW1-2 should be set to Repeater mode Disable during the half-duplex mode of 10Base-T.
The LED1 to 5 indicate the status of Ethernet PHY controller mounted on the SH7670 CPU board. Thus, the
communication state of Ethernet can be confirmed.
Table 2.7.2 lists the Ethernet communication state.
Table 2.7.2 Ethernet Communication State
Number Light on/off Description
On Ethernet is being LINK UP LED1
LINK
Off Ethernet is being LINK UP
On Ethernet is full duplex LED2
DUPLEX
Off Ethernet is half duplex
On Ethernet is connected with 10BASE-T LED3
10ACT
Off Ethernet is not connected with 10BASE-T
On Ethernet is connected with 100BASE-T LED4
100ACT
Off Ethernet is not connected with 100BASE-T
On COLLISION is occurred on the communication of Ethernet LED5
COLLISION
Off COLLISION is not occurred on the communication of Ethernet