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| 型號(hào)： | 4450HG/3-K |
| 廠商： | EXAR CORP |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | MICROPROCESSOR, PBGA324 |
| 封裝： | ROHS COMPLIANT, HSBGA-324 |
| 文件頁(yè)數(shù)： | 33/92頁(yè) |
| 文件大?。?/td> | 780K |
| 代理商： | 4450HG/3-K |
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4450 – Data Sheet, DS-0131-06
Page 39
Hifn Confidential
6.2.2
Host GMAC RGMII/RTBI Interface Usage
This section discusses the use of GMAC interfaces for the host side interfaces h0 or h1
when configured to support operation in RGMII or RTBI modes.
6.2.2.1
Host GMAC RGMII/RTBI Pin Mappings
Table 6-12 provides the functional signal names and mapping for the Host ports if it is
desired to run in SERDES mode.
hx_bus1[8]
GMII: tx_dv
TBI: tx_dat[8]
in
In GMII mode, valid transmit data driven
high by remote device on TX_DAT bus.
In TBI mode, additional transmit output.
Used with other TX_DAT outputs to form ten
bit bus TX_DAT[9:0].
hx_bus1[7:0]
tx_dat[7:0]
in
Transmit data for GbE. Only TX_DAT[3:0]
used for 10/100FE(MII mode.
hx_bus0[9]
GMII: tx_er
TBI: tx_dat[9]
out
In GMII mode, asserted high by the PHY if a
media error is detected.
In TBI mode, additional receive input. Used
with other RX_DAT inputs to form ten bit bus
RX_DAT[9:0].
xhx_bus0[8]
GMII: rx_dv
TBI: rx_dat[8]
out
In GMII mode, receive data valid: driven
high by PHY to indicate valid recovered data
on RX_DAT bus.
In TBI mode, additional receive input. Used
with other RX_DAT inputs to form ten bit bus
RX_DAT[9:0].
hx_bus0[7:0]
rx_dat[7:0]
out
Receive data for GbE. Only RX_DAT[3:0]
used for 10/100FE(MII mode.
Note
hx = h0 or h1
Table 6-6. 4450 RGMII/RTBI MAC/PHY modes Host pin mappings
Pin Name
MAC-RGMII
MAC-RTBI
PHY-RGMII
PHY-RTBI
RGMII Signal
I/O
RTBI Signal
I/O
RGMII Signal
I/O
RTBI Signal
I/O
hx_clk_1
hx_rxc
in
hx_rxc
in
hx_txc
in
hx_txc
in
hx_bus1[4]
hx_rx_ctl
in
hx_rxd[4]
in
hx_tx_ctl
in
hx_txd[4]
in
hx_bus1[3:0]
hx_rxd[3:0]
in
hx_rxd[3:0]
in
hx_txd[3:0]
in
hx_txd[3:0]
in
hx_clk_0
hx_txc
out
hx_txc
out
hx_rxc
out
hx_rxc
out
hx_bus0[4]
hx_tx_ctl
out
hx_txd[4]
out
hx_rx_ctl
out
hx_rxd[4]
out
hx_bus0[3:0]
hx_txd[3:0]
out
hx_txd[3:0]
out
hx_rxd[3:0]
out
hx_rxd[3:0]
out
Note
1. hx = h0 or h1
Table 6-5. 4450 GMII/TBI pin descriptions - PHY mode (Host Only) (Sheet 2 of 2)
Pin Name
GMII/TBI Signal
I/O
Description
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| 445-0X | 制造商:APEX 功能描述:TOOLS, HEX BITS; Bit Type:Slotted; Hex Bit Size:3F-4R; Length:25mm; Size:1" ;RoHS Compliant: NA |
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