Texas Instruments TMS320C6670, Data Manual

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Multicore Fixed and Floating-Point System-on-Chip
Copyright 2012 Texas Instruments Incorporated TMS320C6670 Peripheral Information and Electrical Specifications 207
SPRS689D—March 2012
TMS320C6670
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7.18 Security Accelerator
The Security Accelerator provides wire-speed processing on 1-Gbps Ethernet traffic on IPSec, SRTP, and 3GPP Air
interface security protocols. It functions on the packet level with the packet and the associated security context being
one of these above three types. The Security Accelerator is coupled with network coprocessor, and receives the
packet descriptor containing the security context in the buffer descriptor, and the data to be encrypted/decrypted in
the linked buffer descriptor. For more information, see the Security Accelerator (SA)
for KeyStone Devices User
Guide in 2.9 ‘‘Related Documentation from Texas Instruments’’ on page 66 .
7.19 Gigabit Ethernet (GbE) Switch Subsystem
The gigabit Ethernet (GbE) switch subsystem provide an efficient interface between the TMS320C6670 SoC and the
networked community. The EMAC supports 10Base-T (10 Mbits/second [Mbps]), and 100BaseTX (100 Mbps), in
half- or full-duplex mode, and 1000BaseT (1000 Mbps) in full-duplex mode, with hardware flow control and
quality-of-service (QOS) support. The GbE switch subsystem is coupled with network coprocessor. For more
information, see the
Gigabit Ethernet (GbE) Switch Subsystem for KeyStone Devices User Guide in 2.9 ‘‘Related
Documentation from Texas Instruments’’ on page 66 .
Each device has a unique MAC address. There are two registers to hold these values, MACID1 (0x02620110) and
MACID2 (0x02620114). All bits of these registers are defined as follows:
Figure 7-47 MACID1 Register
31 0
MACID[31:0]
R,+xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx
Legend: R = Read only; -x, value is indeterminate
Table 7-74 MACID1 Register Field Descriptions
Bit Field Description
31-0 MAC ID[31-0] MAC ID. A range will be assigned to this device. Each device will consume only one MAC address.
End of Table 7-74
Figure 7-48 MACID2 Register
31 24 23 18 17 16 15 0
CRC Reserved FLOW BCAST MACID[47:32]
R+,cccc cccc R,+rr rrrr R,+z R,+y R,+xxxx xxxx xxxx xxxx
Legend: R = Read only; -x, value is indeterminate
Table 7-75 MACID2 Register Field Descriptions
Bit Field Description
31-24 Reserved Variable
23-18 Reserved 000000
17 FLOW MAC Flow Control
0 = Off
1 = On
16 BCAST Default m/b-cast reception
0 = Broadcast
1 = Disabled
15-0 MAC ID[47-0] MAC ID. A range will be assigned to this device. Each device will consume only one MAC address.
End of Table 7-75