VITESSE
SEMICONDUCTOR CORPORATION
Datasheet
2.5Gb/s 17x17 Crosspoint Switch
with Input Signal Activity (ISA) Monitoring
VSC834
Table 9: Pin Identification
Signal
Name
Pin
Function
Level
Y16, YN16
P17, P18
Data Output
PECL
Programming Port
ADR0
ADR1
ADR2
ADR3
ADR4
ADR5
D0
B8
D8
C8
B7
C7
D7
V7
V8
U8
W8
Y8
Y9
A7
U7
W7
Y7
W6
Y6
A6
Program data address
Program data address
Program data address
Program data address
Program data address
Program data address
Program data
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
D1
Program data
D2
Program data
D3
Program data
D4
Program data
D5
Program data
ALE
Address latch enable (active high)
Interrupt (active low)
INTB
RDB
WRB
CONFIG
CSB
Read enable (active low)
Write enable (active low)
Configuration strobe (active high)
Chip select (active low)
MONCLK
Loss of activity monitor clock (active high)
Power Supplies
A1, A2, A3, A4, A5, A16, A17, A18,
A19, A20, B1, B2, B3, B4, B5, B15, B16,
B17, B18, B19, B20, C1, C2, C3, C4, C5,
C6, C16, C17, C18, C19, C20, D1, D2,
D3, D4, D5, D16, D17, D18, D19, D20,
E1, E2, E3, E4, E17, E18, E19, E20, F1,
F2, F3, F4, F19, F20, G3, G4, G19, H2,
J20, K2, K3, K4, K17, K18, K19, K20,
L1, L2, L3, L4, L17, L18, L19, M1, P2,
R1, R2, R4, R17, R18, R20, T1, T2, T3,
T4, T17, T18, T19, T20, U1, U2, U3, U4,
U16, U17, U18, U19, U20, V1, V2, V3,
V4, V16, V17, V18, V19, V20, W1, W2,
W3, W4, W5, W16, W17, W18, W19,
W20, Y1, Y2, Y3, Y4, Y5, Y16, Y17,
Y18, Y19, Y20
VCC
Power
+3.3V
G52247-0, Rev 4.2
02/09/01
Page 13
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