ARCNET 5 Port HUB Controller

Datasheet

ITEMS

MARK

MIN

TYP

MAX

UNIT

REMARK

 

 

 

 

 

 

 

RXIN First Active Edge

t11

9/8Tdr

 

10/8Tdr+50

nS

Note3

 

 

 

to nPULSE1 First Active Edge

(450)

 

(550)

(Value at 2.5Mbps)

 

 

 

 

 

 

 

 

 

 

 

 

nPULSE1 Low Pulse Width

t12

 

1/4Tdr

 

nS

(Value at 2.5Mbps)

 

 

 

 

(100)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nPULSE1 High Pulse Width

t13

 

3/4Tdr

 

nS

(Value at 2.5Mbps)

 

 

 

 

(300)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nPULSE1 Period

t14

 

Tdr

 

nS

(Value at 2.5Mbps)

 

 

 

 

(400)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RXIN Active Edge to

t15

5/8Tdr

9/8Tdr+50

14/8Tdr+50

nS

(ValueNote3 at 2.5Mbps)

nPULSE1 Active Edge

 

 

 

(250)

(500)

(750)

(Except First Edge of RXIN)

 

 

 

 

 

 

 

 

 

 

nPULSE1 to nPULSE2 Overlap

t16

-10

0

+10

nS

 

 

 

 

 

 

 

 

nPULSE2 Low Pulse Width

t17

 

1/4Tdr

 

nS

(Value at 2.5Mbps)

 

 

 

 

(100)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nPULSE2 High Pulse Width

t18

 

3/4Tdr

 

nS

(Value at 2.5Mbps)

 

 

 

 

(300)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nPULSE2 Period

t19

 

Tdr

 

nS

(Value at 2.5Mbps)

 

 

 

 

(400)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tdr: Period of data rate, ex) Tdr=400nS at 2.5Mbps

Note1: Applied to TXENx which is set to Mx=1. (Tx Control mode)

Note2: Applied to TXENx which is set to Mx=0. (Pulse output mode)

Note3: Extra one “Tdr” time to be added at RXINx is set to nBJx=0. (Big Jitter mode)

Revision 1.1 (07-24-07)

Page 30

SMSC TMC2005-JT

DATASHEET