LAN9353 Datasheet, PDF(49/523 Page) Microchip Technology – Interfaces at up to 200Mbps via Turbo MII

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LAN9353 Datasheet, PDF (49/523 Pages) Microchip Technology – Interfaces at up to 200Mbps via Turbo MII

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LAN9353

TABLE 5-3: READ AFTER READ TIMING RULES

After reading...

wait for this many

nanoseconds...

Switch Fabric CSR Interface

50

Data Register (SWITCH_CS-

R_DATA)

Port x Virtual PHY Auto-Nego-

40

tiation Expansion Register

(VPHY_AN_EXP_x) x=0

Port x Virtual PHY Auto-Nego-

40

tiation Expansion Register

(VPHY_AN_EXP_x) x=1

or Perform this many

Reads of BYTE_TESTâ¦

(assuming Tcyc of 45ns)

before reading...

2

Switch Fabric CSR Interface

Command Register

(SWITCH_CSR_CMD)

Note 15

1

Port x Virtual PHY Auto-Nego-

tiation Expansion Register

(VPHY_AN_EXP_x) x=0

1

Port x Virtual PHY Auto-Nego-

tiation Expansion Register

(VPHY_AN_EXP_x) x=1

Note 15: This timing applies only to the auto-increment and auto-decrement modes of Switch Fabric CSR register

access.

ï£ 2015 Microchip Technology Inc.

DS00001925A-page 49

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