參數(shù)資料
型號: C5NPD0-DS
英文描述: QUAD BILATERAL SWITCH FOR TRANSMISSION OR MULTIPLEXING OF ANALOG OR DIGITAL SIGNALS
中文描述: 的C - 5網(wǎng)絡(luò)處理器的數(shù)據(jù)資料硅修訂D0
文件頁數(shù): 33/100頁
文件大?。?/td> 2163K
代理商: C5NPD0-DS
Pin Descriptions Grouped by Function
33
MOTOROLA GENERAL BUSINESS INFORMATION
C5NPD0-DS/D REV 04
Gigabit Ethernet (GMII) Configuration
Gigabit Ethernet Media Independent Interface (GMII) is configured in one of two ways:
1
Use one CP cluster when density is more important than wire-speed performance
because you can then implement up to four Gigabit Ethernet ports per C-5 NP
2
Use two CP clusters for wire-speed performance and additional processing power. You
can implement up to two Gigabit Ethernet ports per C-5 NP.
Table 9
lists the possible CP cluster combinations you can use and
Figure 3
shows receive
and transmit pin configurations by cluster.
Table 10
lists the signals and pinouts for
Gigabit Ethernet (GMII).
Table 8
10/100 Ethernet Signals
SIGNAL NAME*
CP
n
_0
CP
n
_1
PIN #
Table 6
Table 6
TOTAL
1
1
TYPE
LVTTL
LVTTL
I/O
O
I
LABEL
REF_CLK
CRS_DV
SIGNAL DESCRIPTION
Transmit and Receive Clock (50MHz)
Carrier Sense (CRS)/ Receive Data Valid (RX_DV). CRS indicates that
traffic is on the link, and is asserted if the signal is a 1 or an
alternating 1010... RX_DV indicates that a receive frame is in
progress and the data present on the RXD pins is valid. It is
asserted if this signal is a 1 for more than one cycle.
Transmit Data 0 (first on wire)
Transmit Data 1 (second on wire)
Receive Data 0 (first on wire)
Receive Data 1 (second on wire)
Transmit Enable. When asserted, the data on TXD is encoded and
transmitted on the twisted pair cable.
CP
n
_2
CP
n
_3
CP
n
_4
CP
n
_5
CP
n
_6
Table 6
Table 6
Table 6
Table 6
Table 6
1
1
1
1
1
LVTTL
LVTTL
LVTTL
LVTTL
LVTTL
O
O
I
I
O
TXD(0)
TXD(1)
RXD(0)
RXD(1)
TX_EN
TOTAL PINS
7
*
n
can be from 0 to 15. See
Table 6
.
Table 9
Transmit and Receive Pin Combinations for Gigabit Ethernet and Fibre Channel
CLUSTER
SINGLE CLUSTER MODE (TBI OR GMII)
TWO CLUSTER MODE (GMII)*
*
The Two Cluster Mode column lists typical configurations. Any cluster can be set up to either receive
or transmit. So you could configure a dual cluster mode where cluster 0 receives and cluster 3
transmits.
0
Port 1 Tx and Rx
Port 1 Tx
1
Port 2 Tx and Rx
Port 1 Rx
2
Port 3 Tx and Rx
Port 2 Tx
3
Port 4 Tx and Rx
Port 2 Rx
F
n
.
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