參數(shù)資料
型號(hào): DM9102D
廠商: Electronic Theatre Controls, Inc.
英文描述: SINGLE CHIP FAST ETHEMET NIC CONTROLLER
中文描述: 單晶片快速以太網(wǎng)NIC控制器
文件頁數(shù): 56/70頁
文件大?。?/td> 2245K
代理商: DM9102D
56
Preliminary datasheet
Version: DM9102D-DS-P02
Jan. 14, 2005
7.8 External MII Interface
DM9102D provides one external MII interface sharing with
all the pins with Boot ROM interface. This external MII
interface can be connected with external PHYceiver such as
Home Networking PHYceiver or other future technology
Test 1 (pin 37) Test 2 (pin 71)
Normal Operation
0
External MII mode
0
Internal Test mode
1
Note 1:
External MII mode
EEDO = 1(pulled high): only external PHY is selected.
EEDO= 0(floating) & MII_ Mode = 1: Select external PHY
EEDO = 0(float) & MII_ Mode = 0: Select internal PHY
Where MII_ Mode is the bit 18 of CR6
7.8.1 The Sharing Pin Table
(o): output, (i): input, (b): bi-direction
Pin
62
63
64
65
66
67
68
69
75
78
79
83
84
87
88
89
90
applications. This external MII interface can be set up by
hardware and software. The setup methods are listed as
below:
Clkrun# (pin 36)
X
0
X
EECK (pin 79)
X
0
X
EEDO (pin 78)
X
1/0
X
1
0
X
Note 1
Normal Operation
Boot ROM interface
TEST2=1
MD0/EEDI
MD1
MD2
MD3
MD4
MD5
MD6
MD7
IDSEL2
EEDO
EECK
LED_MODE
REQ2#
TRF_LED
FDX_LED
SPD100_LED
SPD10_LED
External MII Interface
External MII interface
TEST2= 0
MII_MDIO/EEDI(b)
MII_RXD2 (i)
MII_RXD1 (i)
MII_RXD0 (i)
MII_RXDV (i)
MII_RXER (i)
MII_CRS (i)
MII_RXCLK (i)
MII_COL(i)
MII_TXD0/EEDO(o)
MII_TXD1/EECK (o)
MII_TXEN(o)
MII_TXCLK (i)
MII_TXD2(o)
MII_TXD3(o)
MII_MDC(o)
MII_RXD3(i)
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