KS8999 Просмотр технического описания (PDF) - Micrel
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KS8999 Datasheet PDF : 53 Pages
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Micrel, Inc.
Pin Number
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
Pin Name
VDD_RCV
VDD_RCV
BTOUT2
CTOUT2
RLPBK
MUX[1]
MUX[2]
TEST[1]
TEST[2]
AUTOMDIX
T[1]
T[2]
T[3]
EN1P
SDA
SCL
VDD
GND
MTXEN
MTXD[3]
MTXD[2]
MTXD[1]
MTXD[0]
MTXER
MTXC
MCOL
MCRS
VDD-IO
GND
GND
VDD
BIST
RST#
LED[1][3]
LED[1][2]
LED[1][1]
LED[1][0]
LED[2][3]
LED[2][2]
Type(1)
Pwr
Pwr
O
O
I
I
I
I
I
I
Ipu
Ipd
Ipd
Ipd
Ipd/O
Ipd/O
Pwr
GND
Ipd
Ipd
Ipd
Ipd
Ipd
Ipd
Ipd/O
Ipd/O
Ipd/O
Pwr
GND
GND
Pwr
Ipd
I
Ipu/O
Ipu/O
Ipu/O
Ipu/O
Ipu/O
Ipu/O
KS8999
Port
9
9
9
9
9
9
9
9
9
1
1
1
1
2
2
Pin Function
2.0V for clock recovery circuit
2.0V for clock recovery circuit
Factory test pin –leave open for normal operation
Factory test pin –leave open for normal operation
Enable loop back for testing –pull-down/float for normal operation
Factory test pin –float for normal operation
Factory test pin –float for normal operation
Factory test pin –float for normal operation
Factory test pin –float for normal operation
Auto MDI/MDIX enable and disable –pull-up/float enable; pull-down
disable
Factory test pin –float for normal operation
Factory test pin –float for normal operation
Factory test pin –float for normal operation
Enable 802.1p for all ports
Serial data from EEPROM or processor
Clock for EEPROM or from processor
2.0V for core digital circuitry
Ground for digital circuitry
MII transmit enable
MII transmit bit 3
MII transmit bit 2
MII transmit bit 1
MII transmit bit 0
MII transmit error
MII transmit clock
MII collision detected
MII carrier sense
2.0V, 2.5V or 3.3V for I/O circuitry
Ground for digital circuitry
Ground for digital circuitry
2.0V for core digital circuitry
Built in self test –tie low for normal operation
Reset –active low
LED indicator 3
LED indicator 2
LED indicator 1
LED indicator 0
LED indicator 3
LED indicator 2
January 2005
10
KS8999
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