VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
2.488Gb/s SONET/SDH
STS-48/STM-16 Section Terminator
VSC8151
Table 20: Pin Identification
Signal
Pin
I/O
Level
Pin Description
TXADDR0
TXADDR1
TXADDR2
TXADDR3
TXWRENA
TXADDR4
VMM
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
I
TTL
TTL
TX Regfile Address
TX Regfile Address
TX Regfile Address
TX Regfile Address
I
I
TTL
I
TTL
I
TTL
TX Regfile Write Enable
TX Regfile Address Input
I
TTL
PWR
+2.0V
+3.3V
+2.0V
GND
+3.3V
TTL
VCC
PWR
VMM
PWR
VEE
PWR
VCC
PWR
TXOHWI
TXOHIN7
TXOHIN6
TXOHIN5
TXOHIN4
TXOHIN3
TXOHIN2
TXOHIN1
TXOHIN0
VCC
I
TX Regfile Write Inhibit
TX Regfile Data Input
TX Regfile Data Input
TX Regfile Data Input
TX Regfile Data Input
TX Regfile Data Input
TX Regfile Data Input
TX Regfile Data Input
TX Regfile Data Input
I
TTL
I
TTL
I
TTL
I
I
TTL
TTL
I
TTL
I
TTL
I
TTL
PWR
PWR
O
+3.3V
+3.3V
PECL
PECL
GND
PECL
PECL
+2.0V
PECL
PECL
+3.3V
PECL
PECL
+3.3V
PECL
PECL
+2.0V
PECL
VCC
TXPOUT11
TXPOUT10
VEE
16 bit PECL output bus
16 bit PECL output bus
O
PWR
O
TXPOUT9
TXPOUT8
VMM
16 bit PECL output bus
16 bit PECL output bus
O
PWR
O
TXPOUT7
TXPOUT6
VCC
16 bit PECL output bus
16 bit PECL output bus
O
PWR
O
TXPOUT5
TXPOUT4
VCC
16 bit PECL output bus
16 bit PECL output bus
O
PWR
O
TXPOUT3
TXPOUT2
VMM
16 bit PECL output bus
16 bit PECL output bus
O
PWR
O
TXPOUT1
16 bit PECL output bus
G52225-0, Rev. 2.9
12/1/99
VITESSE SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
Page 25
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
