Ethernet Subsystem Registers
14.5.6.1 P0_CONTROL Register (offset = 0h) [reset = 0h]
P0_CONTROL is shown in
and described in
CPSW PORT 0 CONTROL REGISTER
Figure 14-121. P0_CONTROL Register
31
30
29
28
27
26
25
24
Reserved
P0_DLR_CPDMA_CH
Reserved
P0_PASS_PRI_TAGG
ED
R/W-0h
R/W-0h
23
22
21
20
19
18
17
16
Reserved
P0_VLAN_LTYPE2_E P0_VLAN_LTYPE1_E
Reserved
P0_DSCP_PRI_EN
N
N
R/W-0h
R/W-0h
R/W-0h
15
14
13
12
11
10
9
8
Reserved
7
6
5
4
3
2
1
0
Reserved
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 14-136. P0_CONTROL Register Field Descriptions
Bit
Field
Type
Reset
Description
30-28
P0_DLR_CPDMA_CH
R/W
0h
Port 0 DLR CPDMA Channel This field indicates the CPDMA
channel that DLR packets will be received on.
24
P0_PASS_PRI_TAGGED
R/W
0h
Port 0 Pass Priority Tagged
0 - Priority tagged packets have the zero VID replaced with the input
port P0_PORT_VLAN
[11:0]
1 - Priority tagged packets are processed unchanged.
21
P0_VLAN_LTYPE2_EN
R/W
0h
Port 0 VLAN LTYPE 2 enable
0 - disabled
1 - enabled
20
P0_VLAN_LTYPE1_EN
R/W
0h
Port 0 VLAN LTYPE 1 enable
0 - disabled
1 - enabled
16
P0_DSCP_PRI_EN
R/W
0h
Port 0 DSCP Priority Enable
0 - DSCP priority disabled
1 - DSCP priority enabled.
All non-tagged IPV4 packets have their received packet priority
determined by mapping the 6 TOS bits through the port DSCP
priority mapping registers.
1357
SPRUH73H – October 2011 – Revised April 2013
Ethernet Subsystem
Copyright © 2011–2013, Texas Instruments Incorporated