Table 3-41: 0x302: default i/o selection register, Table 3-41 – Kontron COMe-cP2020 User Manual

Page 59

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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

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