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COMe-P2020 User Guide

Table 3-13: 0x009: User eTSEC2 Protocol Configuration Register

ACTION D7 D6 D5 D4 D3 D2 D1 D0

READ NU NU NU NU NU NU cfg_tsec2_prto[0:1]

WRITE NU NU NU NU NU NU cfg_tsec2_prto[0:1]

POWER UP11111111

[D1-D0] 00 Reserved

01 The eTSEC2 controller operates using the MII protocol (or RMII if

configured in reduced mode if not configured to operate in SGMII mode.

10 The eTSEC2 controller operates using the GMII protocol (or RGMII if

configured in reduced mode if not configured to operate in SGMII mode.

11 The eTSEC2 controller operates using the TBI protocol (or RTBI if

configured in reduced mode if not configured to operate in SGMII mode.

N O T I C E

(write Register value to 0x00). Equivalent CPU strapping is hard coded in CPLD depends on board vari-

ant, value is 10b.

Table 3-14: 0x00A: User eTSEC3 Protocol Configuration Register

ACTION D7 D6 D5 D4 D3 D2 D1 D0

READ NU NU NU NU NU NU cfg_tsec2_prto[0:1]

WRITE NU NU NU NU NU NU cfg_tsec2_prto[0:1]

POWER UP11111111

BITFIELD DESCRIPTION

[D1-D0] 00 Reserved

01 The eTSEC3 controller operates using the RMII protocol if not configured

to operate in SGMII mode.

10 The eTSEC3 controller operates using the RGMII protocol if not

configured to operate in SGMII mode.

11 The eTSEC3 controller operates using the RTBI protocol if not configured

to operate in SGMII mode (default).

N O T I C E

(write Register value to 0x00). Equivalent CPU strapping is hard coded in CPLD depends on board vari-

ant, value is 10b.

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Kontron COMe-cP2020 Bedienungsanleitung Seite 48