TLK3114SA_13 Datasheet, PDF (42/66 Pages) Texas Instruments – 10-Gbps XAUI Transceiver

Table 3−12. MDIO Registers (Continued)
REGISTER ADDRESS
5.32773
5.32774
5.32775
5.32776
5.32777
5.32778−5.32781
5.32782−5.65535
REGISTER NAME
Reserved
DTE XS channel status
DTE XS channel sync status
DTE XS CTC status
Error counter control
Channel A−D error count
Not applicable
Reserved
See Table 3−44
See Table 3−44
See Table 3−44
See Table 3−44
See Table 3−44
−
DEFINITION
Several MDIO register bits may be affected by Boolean functions. When a bit value is overridden through a Boolean
function, writes to that bit are ignored. The bit returns to its prior value once the override is removed.
Table 3−13. Control Register Bit Definitions (Register 0)
BIT(S)
NAME
DESCRIPTION
15
Reset
Logically ORed with the inverse of the RSTN terminal.
1 = Global resets including FIFO clear
0 = Normal operation
14
Loopback
1 = Enable loopback mode on all channels.
0 = Disable loopback mode on all channels (default).
13
Speed selection (LSB)
Not applicable. Read returns a 1.
12
Auto-negotiation enable
Not applicable. Read returns a 0.
11
Power down
Logically ORed with the inversion of the ENABLE terminal.
1 = Power-down mode is enabled.
0 = Normal operation (default).
10
Isolate
Not applicable. Read returns a 0.
9
Restart auto-negotiation
Not applicable. Read returns a 0.
8
Duplex mode
Only full duplex is supported. Writes are ignored. Read returns a 1.
7
Collision test
Not applicable. Read returns a 0.
6
Speed selection (MSB)
Not applicable. Read returns a 1.
5:0
Reserved
Write as 0. Ignore on read.
† _{After reset, this bit is set to 1; it automatically sets itself back to 0 on the next MDC clock cycle.}
READ/WRITE
Read/Write
Self Clearing†
Read/Write
Read-only
Read-only
Read/Write
Read-only
Read-only
Read-only
Read-only
Read-only
−
BIT(S)
15:9
8
7
6:3
2
1
0
Table 3−14. Status Register Bit Definitions (Register 1)
NAME
DESCRIPTION
Read returns all 0s.
Extended status
Read returns a 1, indicating extended status information is held in register 15.
Reserved
Read is ignored.
Various configurations Read returns all 0s.
Link status
1 = Link is up
0 = Link is down
Latches low until read.
Jabber detect
Read returns a 0.
Extended capability
Read returns a 1, indicating extended register capability.
READ/WRITE
Read-only
Read-only
Read-only
Read-only
Read-only
Read-only
Read-only
Registers 2 and 3 contain the identifier for the 10-Gbps ethernet XGXS device.
The identifier code is composed of bits 3−24 of the 25-bit organizationally unique identifier (OUI) assigned to Texas
Instruments by the IEEE. The 6-bit manufacturer model number is unique to the TLK3114SA device. The
manufacturer revision number denotes the current revision of the TLK3114SA device.
3−23