SCAN25100_16 Datasheet, PDF (26/38 Pages) Texas Instruments – SCAN25100 2457.6, 1228.8, and 614.4 Mbps CPRI SerDes with Auto RE Sync and Precision Delay Calibration Measurement

SCAN25100
SNLS223C – SEPTEMBER 2006 – REVISED APRIL 2013
www.ti.com
NOTE
The Default register values assume 614.4 mbps operation with the RESETB,
RXCLKMODE, TXPWDN, and RXPWDN pins tied to a logic high.
Reserved
Address: 00h Value: 0000h
Bit
D15–D0
Default
16'd0
Bit Name
Reserved
Powerdown Control
Address: 01h Value: FFFFh
Bit
D15–D9
D8
Default
7'h7F
1'b1
Bit Name
Reserved
RX PWDNB
D7-D1
D0
7'h7F
1'b1
Reserved
TX PWDNB
Access
—
Access
—
RW
—
RW
OUI
Address: 02h 0Eh Value: 2000h
Bit
D15–D0
Default
Bit Name
16'h2000 OUI
Access
RO
OUI +
Address: 03h 0Fh Value: 5FE4h
Bit
D15-D10
D9-D4
D3-D0
Default
6'h17
6'h3E
4'h4
Bit Name
OUI[19:24]
Part Number
Revision
Access
RO
RO
RO
Reset
Address: 04h Value: FFFFh
Bit
D15–D9
D8
Default
7'h7F
1'b1
Bit Name
Reserved
RX RESETB
Access
—
WC
D7-D1
7'h7F
Reserved
—
D0
1'b1
TX PWDNB
WC
Bit Description
Reserved for future use. Returns undefined value when read.
Bit Description
Reserved for future use. Returns undefined value when read.
Receiver Powerdown: Writing a [0] to this bit places the receiver of the
SCAN25100 into a low power mode.
Reserved for future use. Returns undefined value when read.
Transmiter Powerdown: Writing a [0] to this bit places the transmiter of
the SCAN25100 into a low power mode.
Bit Description
TI identifier assigned by the IEEE.
Bit Description
TI identifier assigned by the IEEE.
SCAN25100 device identifier (3Eh).
SCAN25100 revision number.
Bit Description
Reserved for future use. Returns undefined value when read.
Receiver Reset: Writing [0] to this bit resets Rx control logic. Returns a
value 1 after a few REFCLK cycles. If REFCLK is missing, the logic
remains reset mode.
Reserved for future use. Undefined value returned when read.
Transmiter Reset: Writing [0] to this bit resets Tx control logic. Returns a
value 1 after a few REFCLK cycles. If REFCLK is missing, the logic
remains reset mode.
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