參數(shù)資料
型號(hào)： IBM25NPE405L-3FA200CZ
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 200 MHz, RISC PROCESSOR, PBGA324
封裝： 23 X 23 MM, PLASTIC, EBGA-324
文件頁(yè)數(shù)： 26/52頁(yè)
文件大?。?/td> 907K
代理商： IBM25NPE405L-3FA200CZ
Preliminary
PowerNP NPe405L Embedded Processor Data Sheet
32
Signal Functional Description (Part 1 of 6)
Notes:
1. Receiver input has hysteresis.
2. Must pull up. See “Pull-up and Pull-down Resistors” on page 30 for recommended termination values.
3. Must pull down. See “Pull-up and Pull-down Resistors” on page 30 for recommended termination values.
4. If not used, must pull up.
5. If not used, must pull down.
6. Strapping input during reset; pull up or pull down as required.
Signal Name
Description
I/O
Type
Notes
HDLCEX Interface
HDLCEXTxClk
Transmit Clock
I
3.3V LVTTL
HDLCEXTxFS
Transmit Frame Synchronization
I
3.3V LVTTL
HDLCEXTxDataA
Transmit Data port A
O
3.3V LVTTL
HDLCEXTxDataB
Transmit Data port B
O
3.3V LVTTL
HDLCEXRxClk
Receive Clock
I
3.3V LVTTL
HDLCEXRxFS
Receive Frame Synchronization
I
3.3V LVTTL
HDLCEXRxDataA
Receive Data port A
I
3.3V LVTTL
HDLCEXRxDataB
Receive Data port B
I
3.3V LVTTL
[HDLCEXTxEnA]
Transmit Enable port A
O
5V tolerant
3.3V LVTTL
[HDLCEXTxEnB]
Transmit Enable port B
O
5V tolerant
3.3V LVTTL
Ethernet Interface
EMC0MDClk
Management Data Clock. The MDClk is sourced to the
PHY. Management information is transferred
synchronously with respect to this clock (MII, RMII, and
SMII).
O3.3V LVTTL
EMC0MDIO
Management Data Input/Output is a bidirectional signal
between the Ethernet controller and the PHY. It is used to
transfer control and status information (MII, RMII, and
SMII).
I/O
5V tolerant
3.3V LVTTL
1, 4
EMC0TxD0[EMC0Tx0D0][EMC0Tx0D]
EMC0TxD1[EMC0Tx0D1][EMC0Tx1D]
EMC0TxD2[EMC0Tx1D0]
EMC0TxD3[EMC0Tx1D1]
Transmit Data. A nibble wide data bus towards the net.
The data is synchronous with PHY0TxClk
(MII 0[RMII 0, 1][SMII 0, 1]).
O
3.3V LVTTL
EMC0TxEn[EMC0Tx0En][EMC0Sync]
Transmit Enable. This signal is driven by EMAC2 to the
PHY. Data is valid during the active state of this signal.
Deassertion of this signal indicates end of frame
transmission. This signal is synchronous with PHYTxClk
(MII 0[RMII 0]).
or
SMII Sync.
O
3.3V LVTTL
EMC0TxErr[EMC0Tx1En]
Transmit Error. This signal is generated by the Ethernet
controller, is connected to the PHY and is synchronous
with the PHY0TxClk. It informs the PHY that an error was
detected (MII 0).
or
Transmit Enable [RMII 1].
O3.3V LVTTL
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