TLK10031 Datasheet, PDF (104/146 Pages) Texas Instruments – TLK10031 Single-Channel XAUI/10GBASE-KR Transceiver

TLK10031
SLLSEL3A – JULY 2015 – REVISED AUGUST 2015
www.ti.com
7.5.3.24 KR_VS_FIFO_CONTROL_1 (register = 0x8001) (default = 0xCC4C)
(device address: 0x01)
15
RESERVED
RW
7
XMIT_IDLE
(R)
Figure 7-111. KR_VS_FIFO_CONTROL_1 Register
14
13
12
RX_FIFO_DEPTH[2:0]
(R)
11
10
RX_CTC_WMK_SEL[1:0]
(R)
9
RX_Q_CNT_
IPG
(R)
6
5
4
TX_FIFO_DEPTH[2:0]
(R)
3
2
TX_CTC_WMK_SEL[1:0]
(R)
1
TX_Q_CNT_
IPG
(R)
RW
RW
RW
RW
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
8
RX_CTC_Q_
DROP_EN
(R)
0
TX_CTC_Q_D
ROP
_EN
(R)
RW
Bit
15
14:12
Name
RESERVED
RX_FIFO_DEPTH[2:0]
(R)
11:10 RX_CTC_WMK_SEL[1:0]
(R)
9 RX_Q_CNT_IPG
(R)
8 RX_CTC_Q_DROP_EN
(R)
7 XMIT_IDLE
(R)
6:4 TX_FIFO_DEPTH[2:0]
(R)
3:2 TX_CTC_WMK_SEL[1:0]
(R)
1 TX_Q_CNT_IPG
(R)
0 TX_CTC_Q_DROP_EN
(R)
Table 7-93. KR_VS_FIFO_CONTROL_1 Field Descriptions
Type
RW
RW
RW
Reset
Description
For TI use only (Default 1’b1)
Rx CTC FIFO depth selection
1xx = 32 deep (Default 3’b100)
011 = 24 deep
010 = 16 deep
001 = 12 deep
000 = 8 deep (No CTC function)
Water mark selection for receive CTC
Works in conjunction with RX_FIFO_DEPTH_SEL setting (Default 2’b11)
Depth->
11
10
01
00
32
High
Mid-high
Mid
Low
24
High
Mid
Low
Low
26 12/8
High NA
High
Low
Low
RW
0 = Normal operation. (Default 1’b0)
1 = Sequence columns are counted as IPG.
RW
0 = Normal operation. (Default 1’b0)
1 = Enable Q column drop in RX CTC.
RW
1 = Transmit idle pattern onto LS side
0 = Normal operation (Default 1’b0)
RW
Tx CTC FIFO depth selection
1xx = 32 deep (Default 3’b100)011 = 24 deep
010 = 16 deep001 = 12 deep
000 = 8 deep (No CTC function)
RW
Water mark selection for receive CTC
Works in conjunction with TX_FIFO_DEPTH_SEL setting (Default 2’b11)
Depth->
11
10
01
00
32
High
Mid-high
Mid
Low
24
High
Mid
Low
Low
26 12/8
High NA
High
Low
Low
RW
0 = Normal operation. (Default 1’b0)
1 = Sequence columns are counted as IPG.
RW
0 = Normal operation. (Default 1’b0)
1 = Enable Q column drop in TX CTC
104 Detailed Description
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