32
Device Overview
Copyright 2012 Texas Instruments Incorporated
SPRS689D—March 2012
Multicore Fixed and Floating-Point System-on-Chip
TMS320C6670
2.4.2.3 Ethernet (SGMII) Boot Device Configuration
2.4.2.4 PCI Boot Device Configuration
Additional device configuration is provided in the PCI bits in the DEVSTAT register.
Figure 2-5
Ethernet (SGMII) Device Configuration Fields
9
8
7
6
5
4
3
SerDes Clock Mult
Ext connection
Dev ID
Table 2-6
Ethernet (SGMII) Configuration Field Descriptions
Bit
Field
Description
9-8
SerDes clock mult
SGMII SerDes input clock. The output frequency of the PLL must be 1.25 GBs.
0 = ×8
for input clock of 156.25 MHz
1 = ×5 for input clock of 250 MHz
2 = ×4 for input clock of 312.5 MHz
3 = Reserved
7-6
Ext connection
External connection mode
0 = MAC to MAC connection, master with auto negotiation
1 = MAC to MAC connection, slave, and MAC to PHY
2 = MAC to MAC, forced link
3 = MAC to fiber connection
5-3
Device ID
This value can range from 0 to 7 and is used in the device ID field of the Ethernet-ready frame.
End of Table 2-6
Figure 2-6
PCI Device Configuration Fields
9
8
7
6
5
4
3
Reserved
BAR Config
Reserved
Table 2-7
PCI Device Configuration Field Descriptions
Bit
Field
Description
9
Reserved
Reserved
8-5
Bar Config
PCIe BAR registers configuration
This value can range from 0 to 0xf. See
.
4-3
Reserved
Reserved
End of Table 2-7
Содержание TMS320C6670
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