SCAN50C400 Datasheet, PDF (22/32 Pages) Texas Instruments – SCAN50C400

Control Register 1
(Offset=30.1)
Bit
15:8
7:0
Bit Name
SW_PDNB
SW_RSTB
Access
RW
RW
Default
FF ′h
FF ′h
Description
SW_PDNB is the active low software power-down for individual
serializers or deserializers. During software power-down, the MDIO
serial interface remains functional. The user must program SW_PDNB
HIGH to exit power-down mode.
The PDNB pin overrides SW_PWDNB.
D15=0: Activates software power-down on Channel 4 Deserializer.
D14=0: Activates software power-down on Channel 3 Deserializer.
D13=0: Activates software power-down on Channel 2 Deserializer.
D12=0: Activates software power-down on Channel 1 Deserializer.
D11=0: Activates software power-down on Channel 4 Serializer.
D10=0: Activates software power-down on Channel 3 Serializer.
D9=0: Activates software power-down on Channel 2 Serializer.
D8=0: Activates software power-down on Channel 1 Serializer.
SW_RSTB is the active low software reset for individual serializers or
deserializers. SW_RSTB should be LOW for more than 10us. During
software reset, the MDIO serial interface remains functional. Software
reset can be activated only during normal operating mode (i.e. LSLB
and HSLB are both HIGH). The user is required to program SW_RSTB
high to exit software reset.
The RESETB pin overrides SW_RSTB.
D7=0: Activates software reset on Channel 4 Deserializer.
D6=0: Activates software reset on Channel 3 Deserializer.
D5=0: Activates software reset on Channel 2 Deserializer.
D4=0: Activates software reset on Channel 1 Deserializer.
D3=0: Activates software reset on Channel 4 Serializer.
D2=0: Activates software reset on Channel 3 Serializer.
D1=0: Activates software reset on Channel 2 Serializer.
D0=0: Activates software reset on Channel 1 Serializer.
Device Identifier Register 1
Package Identifier Register 1
(Offset=30.2)
(Offset=30.14)
Bit
15:0
Bit Name
ID_MSB
Access
RO
Default
A000 ′h
Description
Bits 3 to 18 of the ID are stored in bits 15 to 0 of this register.
National's ID is 080017 ′h
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