TMS320C6678
Multicore Fixed and Floating-Point Digital Signal Processor
SPRS691D—April 2013
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2.5.3.3 Ethernet Boot Parameter Table
Table 2-18
Ethernet Boot Mode Parameter Table (Part 1 of 2)
Byte
Offset
Configured Through Boot
Configuration Pins
Name
Description
12
Options
Bits 2-0 Interface
101b = SGMII
-
Others = Reserved
Bit 3 Half or Full duplex
0 = Half Duplex
1 = Full Duplex
Bit 4 Skip TX
0 = Send Ethernet Ready Frame every 3 seconds
1 = Don't send Ethernet Ready Frame
Bits 6-5 Initialize Config
00b = Switch, SerDes, SGMII and PASS are configured
01b = Only SGMII and PASS are configured
10b= Reserved
11b = None of the Ethernet system is configured.
Bits 15-7 Reserved
14
16
18
20
22
24
26
MAC High
The 16 MSBs of the MAC address to receive during boot
The 16 middle bits of the MAC address to receive during boot
The 16 LSBs of the MAC address to receive during boot
The 16 MSBs of the multi-cast MAC address to receive during boot
The 16 middle bits of the multi-cast MAC address to receive during boot
The 16 LSBs of the multi-cast MAC address to receive during boot
The source UDP port to accept boot packets from.
A value of 0 will accept packets from any UDP port
The destination port to accept boot packets on.
-
-
-
-
-
-
-
MAC Med
MAC Low
Multi MAC High
Multi MAC Med
Multi MAC Low
Source Port
28
30
Dest Port
-
-
Device ID 12
The first two bytes of the device ID.
This is typically a string value, and is sent in the Ethernet ready frame
The 2nd two bytes of the device ID.
32
34
Device ID 34
-
-
Dest MAC High
The 16 MSBs of the MAC destination address used
for the Ethernet ready frame. Default is broadcast.
36
38
40
Dest MAC Med
Dest MAC Low
SGMII Config
The 16 middle bits of the MAC destination address
The 16 LSBs of the MAC destination address
Bits 3-0 are the config index
-
-
-
Bit 4 set if direct config used
Bit 5 set if no configuration done
Bits 15-6 Reserved
42
44
46
48
50
52
54
56
SGMII Control
The SGMII control register value
-
-
-
-
-
-
-
-
SGMII Adv Ability
SGMII TX Cfg High
SGMII TX Cfg Low
SGMII RX Cfg High
SGMII RX Cfg Low
SGMII Aux Cfg High
SGMII Aux Cfg Low
The SGMII ADV Ability register value
The 16 MSBs of the SGMII Tx config register
The 16 LSBs of the SGMII Tx config register
The 16 MSBs of the SGMII Rx config register
The 16 LSBs of the SGMII Rx config register
The 16 MSBs of the SGMII Aux config register
The 16 LSBs of the SGMII Aux config register
36
Device Overview
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