TMC2005-JT SMSC Corporation, TMC2005-JT Datasheet - Page 7

• Manufacturer Part Number: TMC2005-JT
• Description: ARCNET 5 Port HUB Controller
• Manufacturer: SMSC Corporation

Note:
TX/RX Interface
SMSC TMC2005-JT
PIN NO.
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
Pull-up: Input with a pull-up resistor 70KΩ ± 30%
RX Port
RX Port
TX Port
TX Port
TX Port
VDD5
nP1BAK
nPULSE2
nPULSE1
VSS7
RXINA0
SA
TXENA0
LA
RXINA1
MA
TXENA1
VDD6
NC
VSS8
RXINB0
SB
TXENB0
LB
RXINB1
MB
NAME
Assignment
FEATURE
TX Control
TX Data
Output
Polar
INPUT/OUTPUT
TXENA [0:1]
TXENB [0:1]
EXTTX
nPULSE [1:2]
RXINA [0:1]
RXINB [0:1]
SA, SB, SE
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
nP1BAK
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
EXTRX
NAME
DATASHEET
INPUT/OUTPUT
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)
Page 7
OUTPUT
OUTPUT
OUTPUT
INPUT
INPUT
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
DESCRIPTION
ARCNET 5 Port HUB Controller
Revision 1.0 (01-30-06)
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
NOTE
Datasheet