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TMC2005-JT Ver la hoja de datos (PDF) - SMSC -> Microchip

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componentes Descripción
Lista de partido
TMC2005-JT
ARCNET 5 Port HUB Controller
SMSC
SMSC -> Microchip SMSC
TMC2005-JT Datasheet PDF : 32 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ARCNET 5 Port HUB Controller
Datasheet
PIN NO.
44
45
46
47
48
NAME
VDD5
nP1BAK
nPULSE2
nPULSE1
VSS7
49
RXINA0
50
SA
51
TXENA0
52
LA
53
RXINA1
54
MA
55
TXENA1
56
VDD6
57
NC
58
VSS8
59
RXINB0
60
SB
61
TXENB0
62
LB
63
RXINB1
64
MB
INPUT/OUTPUT
OUTPUT
OUTPUT
OUTPUT
INPUT
INPUT
OUTPUT
INPUT
INPUT
INPUT
OUTPUT
INPUT
INPUT
OUTPUT
INPUT
INPUT
INPUT
DESCRIPTION
Power Supply.
nPULSE1 output (for backplane mode).
nPULSE2 output (for normal mode).
nPULSE1 output (for normal mode)
Ground
Port A-0 Rx-data input from media
transceiver.
Port A. Polar assignment for RXINA0/A1
output (0:active Hi, 1:active Low)
Port A-0 Tx output to media transceiver.
Port A. Polar assignment for TXENA0/A1
output (0:active Low, 1:active Hi)
Port A-1 Rx-data input from media
transceiver.
Port A. Mode assignment for
TXENA0/A1 (0:pulse output, 1:Tx control
output)
Port A-1 Tx output to media transceiver.
Power Supply
Reserved. It should be open.
Ground
Port B-0 Rx-data input from media
transceiver.
Port B. Polar assignment for RXINA0/A1
input (0:active Hi, 1:Active Low)
Port B-0 Tx output to media transceiver.
Port B. Polar assignment for TXENA0/A1
output (0:active Low, 1:active Hi)
Port B-1 Rx-data input from media
transceiver.
Port B. Mode assignment for
TXENA0/A1 (0:pulse output, 1:TX control
output)
NOTE
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Note: Pull-up: Input with a pull-up resistor 70KΩ ± 30%
TX/RX Interface
RX Port
RX Port
TX Port
TX Port
TX Port
SMSC TMC2005-JT
FEATURE
Polar
Assignment
TX Control
TX Data
Output
NAME
RXINA [0:1]
RXINB [0:1]
EXTRX
SA, SB, SE
TXENA [0:1]
TXENB [0:1]
EXTTX
nPULSE [1:2]
nP1BAK
INPUT/OUTPUT
INPUT
INPUT
OUTPUT
OUTPUT
OUTPUT
Page 7
DESCRIPTION
Setup the polarity by SA, SB, SE.
Setup the polarity of RXINA [0:1],
RXINB [0:1], EXTTX.
0 : active H
1: active L
TX data pulse (Mx=0) or TX
enable signal (Mx=1).
Setup TX mode by MA, MB, ME.
Setup the polarity by LA, LB, LE
TX pulse data into HYC9068S-
SK/9088S-SK when ARCNET
chip is at normal mode.
The pulse is always active Low.
TX pulse data into RS485 driver
or HYC2485S/2488S when
ARCNET chip is at backplane
Revision 1.0 (01-30-06)
DATASHEET

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