Ethernet Subsystem Registers
14.5.9.35 RGMII_CTL Register (offset = 88h) [reset = 0h]
RGMII_CTL is shown in
and described in
RGMII CONTROL SIGNAL REGISTER
NOTE: This register only has context in RGMII in-band mode. This register is not updated during forced
mode of operation. Note that in-band mode is selected via MACCONTROL.EXT_EN.
Figure 14-231. RGMII_CTL Register
31
30
29
28
27
26
25
24
Reserved
R-0h
23
22
21
20
19
18
17
16
Reserved
R-0h
15
14
13
12
11
10
9
8
Reserved
R-0h
7
6
5
4
3
2
1
0
RGMII2_FULLDUPLE
RGMII2_SPEED
RGMII2_LINK
RGMII1_FULLDUPLE
RGMII1_SPEED
RGMII1_LINK
X
X
R-0h
R-0h
R-0h
R-0h
R-0h
R-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 14-249. RGMII_CTL Register Field Descriptions
Bit
Field
Type
Reset
Description
31-8
Reserved
R
0h
7
RGMII2_FULLDUPLEX
R
0h
RGMII 2 Fullduplex - This is the CPRGMII fullduplex output signal.
0 - Half-duplex mode
1 - Fullduplex mode
6-5
RGMII2_SPEED
R
0h
RGMII2 Speed - This is the CPRGMI speed output signal
00 - 10Mbps mode
01 - 100Mbps mode
10 - 1000Mbps (gig) mode
11 - reserved
4
RGMII2_LINK
R
0h
RGMII2 Link Indicator - This is the CPRGMII link output signal
0 - RGMII2 link is down
1 - RGMII2 link is up
3
RGMII1_FULLDUPLEX
R
0h
RGMII1 Fullduplex - This is the CPRGMII fullduplex output signal.
0 - Half-duplex mode
1 - Fullduplex mode
2-1
RGMII1_SPEED
R
0h
RGMII1 Speed - This is the CPRGMII speed output signal
00 - 10Mbps mode
01 - 100Mbps mode
10 - 1000Mbps (gig) mode
11 - reserved
0
RGMII1_LINK
R
0h
RGMII1 Link Indicator - This is the CPRGMII link output signal
0 - RGMII1 link is down
14.5.10 Management Data Input/Output (MDIO) Registers
This section describes the memory-mapped registers for the Management Data Input/Output (MDIO).
lists the memory-mapped registers for the Management Data Input/Output (MDIO). See the
device-specific data manual for the memory address of these registers.
1473
SPRUH73H – October 2011 – Revised April 2013
Ethernet Subsystem
Copyright © 2011–2013, Texas Instruments Incorporated