Table 3-41: 0x302: default i/o selection register, Table 3-41 – Kontron COMe-cP2020 User Manual
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COMe-P2020 User Guide
59
Table 3-41:
0x302: Default I/O Selection Register
ACTION
D7
D6
D5
D4
D3
D2
D1
D0
READ
NU
NU
NU
NU
cfg_io_ports[0:3]
WRITE
NU
NU
NU
NU
NU
POWER UP
1
1
1
1
0
1
1
0
BITFIELD
DESCRIPTION
[D3-D0]
0000
PCI Express 1 (×1) (2.5Gbps)? SerDes lane 0
SerDes lanes 1-3 powered down.
0001
SerDes lanes 0-3 powered down.
0010
PCI Express 1 (×1) (2.5 Gbps) ? SerDes lane 0
PCI Express 2 (×1) (2.5 Gbps) ? SerDes lane 1
PCI Express 3 (×2) (2.5 Gbps) ? SerDes lanes 2-3
0011
Reserved
0100
PCI Express 1 (×2) (2.5 Gbps) ? SerDes lanes 0-1
PCI Express 3 (×2) (2.5 Gbps) ? SerDes lanes 2-3
0101
Reserved
0110
PCI Express 1 (×4) (2.5 Gbps) ? SerDes lanes 0-3
0111
SRIO2 (1×) (3.125 Gbps) ? SerDes lane 0
SRIO1 (1×) (3.125 Gbps) ? SerDes lane 1
SerDes lanes 2-3 powered down.
1000
SRIO2 (4×) (1.25 Gbps) ? SerDes lanes 0-3
1001
SRIO2 (4×) (2.5 Gbps) ? SerDes lanes 0-3
1010
SRIO2 (4×) (3.125 Gbps) ? SerDes lanes 0-3
1011
SRIO 2 (1×) (1.25 Gbps) ? SerDes lane 0
SRIO 1 (1×) (1.25 Gbps) ? SerDes lane 1
SGMII eTSEC2 (×1) (1.25 Gbps) ? SerDes lane 2
SGMII eTSEC3 (×1) (1.25 Gbps) ? SerDes lane 3
1100
SRIO 2 (1×) (2.5 Gbps) ? SerDes lane 0
SRIO 1 (1×) (2.5 Gbps) ? SerDes lane 1
SGMII eTSEC2 (×1) (1.25 Gbps) ? SerDes lane 2
SGMII eTSEC3 (×1) (1.25 Gbps) ? SerDes lane 3
1101
PCI Express 1 (×1) (2.5 Gbps) ? SerDes lane 0
SRIO 1 (1×) (2.5 Gbps) ? SerDes lane 1
SGMII eTSEC2 (×1) (1.25 Gbps) ? SerDes lane 2
SGMII eTSEC3 (×1) (1.25 Gbps) ? SerDes lane 3
1110
PCI Express 1 (×1) (2.5 Gbps) ? SerDes lane 0
PCI Express 2 (×1) (2.5 Gbps) ? SerDes lane 1
SGMII eTSEC2 (×1) (1.25 Gbps) ? SerDes lane 2
SGMII eTSEC3 (×1) (1.25 Gbps) ? SerDes lane 3
1111
PCI Express 1 (×2) (2.5 Gbps) ? SerDes lanes 0-1
SGMII eTSEC2 (×1) (1.25 Gbps) ? SerDes lane 2
SGMII eTSEC3 (×1) (1.25 Gbps) ? SerDes lane 3