4 i2c to i/o device access – ADLINK aTCA-N700 User Manual

Page 20

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aTCA-RN720 User's Guide


20

=>i2c md 0x16 0x9a 0x2
=>i2c mw 0x16 0x9a 0x4415.2
=>i2c md 0x16 0x9a 0x2

/*retimer 4
=>i2c mw 0x73 0x0 0xc; i2c probe
=>i2c md 0x16 0x9a 0x2
=>i2c mw 0x16 0x9a 0xcafe.2
=>i2c md 0x16 0x9a 0x2
=>i2c mw 0x16 0x9a 0x4415.2
=>i2c md 0x16 0x9a 0x2

/*retimer 5
=>i2c mw 0x73 0x0 0xd; i2c probe
=>i2c md 0x16 0x9a 0x2
=>i2c mw 0x16 0x9a 0xcafe.2
=>i2c md 0x16 0x9a 0x2
=>i2c mw 0x16 0x9a 0x4415.2
=>i2c md 0x16 0x9a 0x2

4.3.4 I2C to I/O Device Access

To check the I/O Device to the SFP module status, refer to the following example. Make sure that
the corresponding SFP modules are present on the board.

15 14 13 12 11 10 9 8
SFP4
TXDISABLE

SFP3
TXDISABLE

SFP4
INSERT

SFP3
INSERT

SFP2
INSERT

SFP1
INSERT

QSFP2
INSERT

QSFP1
INSERT

7 6 5 4 3 2 1 0
SFP2
TXDISABLE

SFP1
TXDISABLE

SFP4
TXFAULT

SFP3
TXFAULT

SFP2
TXFAULT

SFP1
TXFAULT

QSFP2
TXFAULT

QSFP1
TXFAULT

=>i2c dev 3
=>i2c probe
=>i2c md 0x20 0x0.0 0x2

(*screen capture of the results: Insert status)

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