VSC7182 Datasheet, PDF (14/18 Pages) Vitesse Semiconductor Corporation – Quad Transceiver for Gigabit Ethernet and Fibre Channel

® VITESSE
SEMICONDUCTOR CORPORATION
Quad Transceiver
for Gigabit Ethernet and Fibre Channel
Advance Product Information
VSC7182
Pin
N14
C9
R3
P4
K4
D5
R17
F2
A4
B10
B15
P9
R9
T17
D9
R15
P15
K2
T9
R8
A2,A10,C14
G4,J14,K16
L4,N15,R4
R14,T3
T4,T14,U5
C4, D3,F3
A9, B7, C5
A13, A16, C11
C15, E14, G17
T5
T7
T11
T13
Name
PLUP
SLPN
LPNA
LPNB
LPNC
LPND
SYNC
SYNCA
SYNCB
SYNCC
SYNCD
CAP0
CAP1
TCK
TMS
TRSTN
TDI
TDO
VDDA
VSSA
Description
INPUT - TTL: Parallel Loopback Enable Input. RXi is input to the CRU for Channel x
(normal operation) when PLUP is LOW. When HIGH, internal loopback paths from
TXi to RXi are enabled. Refer to Table 2.
INPUT - TTL: Serial Loopback Enable Input. Normal operation when HIGH. When
LOW, SI+/- is looped back to TXi+/- internally for diagnostic purposes. Refer to Table
2 and related description.
INPUT - TTL: Loopback Enable Pins. When LPNi is LOW, PLUP/SLPN impact
Channel x. When HIGH, PLUP/SLPN have no effect on Channel x.
INPUT - TTL: Enables SYNi and Word Alignment when HIGH. When LOW, keeps
current word alignment and disables SYNi (always LOW).
OUTPUT - TTL: Comma Detect for Channel x. This output goes HIGH for half of an
RCi1 period to indicate that RXi[0:9] contains a “comma” character
(‘0011111XXX’). SYNi will go HIGH only during a cycle when RCi0 is rising. SYNi
is enabled when SYNC is HIGH.
ANALOG: Loop Filter capacitor for the Clock Multiply Unit. Typically 0.1µF
connected between CAP0 and CAP1. Amplitude is less than 3.3V.
INPUT - TTL: JTAG Test Clock
INPUT - TTL: JTAG Test Mode Select
INPUT - TTL: JTAG Test Reset, Active LOW
INPUT - TTL: JTAG Test Data Input
OUTPUT - TTL: JTAG Test Data Output
Analog Power Supply
Analog Ground. Tie to common ground plane with VSS.
VDD
Digital Logic Power Supply
VDDT
TTL Output Power Supply
VDDPA
VDDPB
VDDPC
VDDPD
PECL I/O Power Supply for Channel x.
Page 14
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: [phone] • Email: [e-mail]
Internet: www.vitesse.com
G52307-0, Rev 2.2
10/10/00