pnx1700 NXP Semiconductors, pnx1700 Datasheet - Page 746

• Manufacturer Part Number: pnx1700
• Description: Connected Media Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Volume 1 of 1
6. System Integration
Table 12: LAN100 Pin Interface to external PHY
PNX17XX_SER_1
Preliminary data sheet
Pin
LAN_CLK
LAN_TX_CLK/LAN_REF_CLK
LAN_TX_EN
LAN_TXD3
LAN_TXD2
LAN_TXD1
LAN_TXD0
LAN_TX_ER
LAN_CRS/LAN_CRS_DV
LAN_COL
LAN_RX_CLK
LAN_RXD3
LAN_RXD2
LAN_RXD1
LAN_RXD0
LAN_RX_DV
6.1 MII Interface I/O
To reset just the Receive Datapath the device driver software must:
A soft reset of the Transmit Datapaths will abort any transmit-descriptor read,
status-write, and data-read operations.
A soft reset of the Receive Datapath will abort any receive-descriptor read,
status-write and data-write operations.
Table 12
•
•
•
•
•
•
•
Directio
n
Out
In
Out
Out
Out
In
In
In
In
In
Disable the Tx DMA managers by setting the Tx(Rt)Enable bits in the Command
register to 0
Set the TxReset bit in the Command register (this bit clears automatically)
Reset the RESET_PEMCS_Tx bit in the MAC1 register to 0.
Disable the receive function by resetting the RECEIVE_ENABLE bit in the MAC1
configuration register and resetting of the RxEnable bit of the Command register.
Set the RESET_PEMCS_Rx bit in the MAC1 register to 1
Set the RxReset bit in the Command register (this bit clears automatically)
Reset the RESET_PEMCS_Rx bit in the MAC1 register to 0.
summarizes the pin interface of the LAN100.
Description
Clock to feed the external PHY, usually 50 MHz
MII Transmit Clock or RMII Reference Clock
MII or RMII Transmit Enable
MII Transmit Data
MII Transmit Data
MII or RMII Transmit Data
MII or RMII Transmit Data
MII Transmit Error
MII Carrier Sense or RMII Carrier Sense and Receive Data Valid.
This pin is 5 V input tolerant.
Collision Detect. This pin is 5 V input tolerant.
MII Receive Clock
MII Receive Data
MII Receive Data
MII or RMII Receive Data
MII or RMII Receive Data
MII Receive Data Valid
Rev. 1 — 17 March 2006
Chapter 23: LAN100 — Ethernet Media Access Controller
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PNX17xx Series
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