Datasheet

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