MTD981AF 查看數據表（PDF） - Myson Century Inc
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MTD981AF Datasheet PDF : 18 Pages
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MYSON
TECHNOLOGY
MTD981A
PIN DESCRIPTION
Name
TXD3
TXD2
TXD1
TXD0
TXEN
TXCLK
TXER
RXD3
RXD2
RXD1
RXD0
RXDV
RXER
RXCLK
COL
CRS
MDC
MDIO
MDINT
TXOP
TXON
RXIP
RXIN
FOP
FON
FIP
FIN
SDP
LEDSPD_
LED10_
LEDTX_
LEDRX_
LEDFD_
LEDLNK_
IO Pin # Pin # Description
(80) (100)
I
40 50 Transmit data bit 3.
I
39 49 Transmit data bit 2.
I
38 48 Transmit data bit 1.
I
37 47 Transmit data bit 0.
I
34 44 Transmit enable.
O 33 43 Transmit clock.
I
32 42 Transmit error.
O 23 33 Receive data bit 3.
O 24 34 Receive data bit 2.
O 25 35 Receive data bit 1.
O 26 36 Receive data bit 0.
O 29 39 Receive data valid.
O 31 41 Receive data error.
O 30 40 Receive clock.
O 41 56 Collision detect.
O 42 57 Carrier sense.
I
22 32 MII management clock.
IO,U 21 31 MII management data input/output. Weakly pull up.
O 43 58 MII management interrupt.
O 77 97 Twisted-pair output positive node.
O 78 98 Twisted-pair output negative node.
I
64 84 Twisted-pair input positive node.
I
63 83 Twisted-pair input negative node.
O 69 89 Fiber output positive node.
O 70 90 Fiber output negative node.
I
67 87 Fiber input positive node.
I
66 86 Fiber input negative node.
I
62 82 Signal detect positive node. Used only in fiber mode.
IO,U 44 59 100BT LED. 0 = 100baseTX; 1 = other connection.
When RST_ is low, this pin works as FIBER_DESEL to select the
fiber mode. Weakly pull up
O 57 72 10BT LED. 0 = 10baseTX; 1 = other connection.
O 47 62 Transmit LED. Toggles when there is transmit activities.
O 46 61 Receive LED. Toggles when there is receive activities.
O 58 73 Full-duplex LED. 0 = full duplex; 1 = half duplex.
O 48 63 Link LED. 0 = link on; 1 = link off.
LEDCOL_ IO,U 45 60 Collision led. 0 = collision; 1 = no collision. Weakly pull up.
When RST_ is low, this pin will load the SCRAM_SEL to
enable/disable the scrambler and descrambler set.
TEST
I,D 7 12 Test mode select. Weakly pull down.
CKIN
I
5
10 Oscillator input.
If RMII is selected, only 50MHz oscillator can be used. In MII
mode, a 25MHz oscillator can be used.
RBIAS
I
72 92 Bias control resister, to provide the internal voltage control.
PD
I,D 9 14 Power down control.
1 = power down mode; 0 or floating = normal. Weakly pull down.
RPTR
I,D 61 81 Repeater mode select.
4
MTD981A Revision 1.2 02/19/2001
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