Ethernet Subsystem Registers
14.5.6.4 P0_TX_IN_CTL Register (offset = 10h) [reset = 40C0h]
P0_TX_IN_CTL is shown in
and described in
CPSW PORT 0 TRANSMIT FIFO CONTROL
Figure 14-124. P0_TX_IN_CTL Register
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
TX_RATE_EN
Reserved
TX_IN_SEL
R/W-0h
R/W-0h
15
14
13
12
11
10
9
8
TX_BLKS_REM
Reserved
TX_PRI_WDS
R/W-4h
R/W-C0h
7
6
5
4
3
2
1
0
TX_PRI_WDS
R/W-C0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 14-139. P0_TX_IN_CTL Register Field Descriptions
Bit
Field
Type
Reset
Description
23-20
TX_RATE_EN
R/W
0h
Transmit FIFO Input Rate Enable
17-16
TX_IN_SEL
R/W
0h
Transmit FIFO Input Queue Type Select
00 - Normal priority mode
01 - Dual MAC mode
10 - Rate Limit mode
11 - reserved Note that Dual MAC mode is not compatible with
escalation or shaping because dual mac mode forces round robin
priority on FIFO egress.
15-12
TX_BLKS_REM
R/W
4h
Transmit FIFO Input Blocks to subtract in dual mac mode
9-0
TX_PRI_WDS
R/W
C0h
Transmit FIFO Words in queue
1360
Ethernet Subsystem
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated