Table 3-45, Table 3-46, Table 3-47 – Kontron COMe-cP2020 User Manual
Page 61
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COMe-P2020 User Guide
61
Table 3-45:
0x306: Default eTSEC2 SGMII Mode Configuration Register
ACTION
D7
D6
D5
D4
D3
D2
D1
D0
READ
NU
NU
NU
NU
NU
NU
NU
cfg_sgmii2
WRITE
NU
NU
NU
NU
NU
NU
NU
NU
POWER UP
1
1
1
1
1
1
1
1
BITFIELD
DESCRIPTION
[D0]
0
eTSEC2 Ethernet interface operates in SGMII mode and uses SGMII SerDes
lane 2 pins.
1
eTSEC2 Ethernet interface operates in standard parallel interface mode and
uses the TSEC2_* pins.
Table 3-46:
0x307: Default eTSEC3 SGMII Mode Configuration Register
ACTION
D7
D6
D5
D4
D3
D2
D1
D0
READ
NU
NU
NU
NU
NU
NU
NU
cfg_sgmii3
WRITE
NU
NU
NU
NU
NU
NU
NU
NU
POWER UP
1
1
1
1
1
1
1
1
BITFIELD
DESCRIPTION
[D0]
0
eTSEC3 Ethernet interface operates in SGMII mode and
uses SGMII SerDes lane 3 pins.
1
eTSEC3 Ethernet interface operates in standard parallel
interface mode and uses the TSEC3_* pins.
Table 3-47:
0x308: Default eTSEC1 Width Configuration Register
ACTION
D7
D6
D5
D4
D3
D2
D1
D0
READ
NU
NU
NU
NU
NU
NU
NU
cfg_tsec_reduce
WRITE
NU
NU
NU
NU
NU
NU
NU
NU
POWER UP
1
1
1
1
1
1
1
1
BITFIELD
DESCRIPTION
[D0]
0
eTSEC1 and eTSEC2 Ethernet interfaces operate in reduced pin mode
(either RTBI, RGMII, or RMII mode).
1
eTSEC1 and eTSEC2 Ethernet interfaces operate in their standard width TBI,
GMII, or MII mode.
N O T I C E
Equivalent CPU strapping is hard coded in CPLD depends on board variant, read value is always 0xFE.