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ARCNET 5 Port HUB Controller
Datasheet
Revision 1.1 (07-24-07) Page 30 SMSC TMC2005-JT
DATASHEET
ITEMS MARK MIN TYP MAX UNIT REMARK
9/8Tdr 10/8Tdr+50
RXIN First Active Edge
to nPULSE1 First Active Edge
t11
(450)
(550)
nS
Note3
(Value at 2.5Mbps)
1/4Tdr
nPULSE1 Low Pulse Width
t12
(100)
nS
(Value at 2.5Mbps)
3/4Tdr
nPULSE1 High Pulse Width
t13
(300)
nS
(Value at 2.5Mbps)
Tdr
nPULSE1 Period
t14
(400)
nS
(Value at 2.5Mbps)
5/8Tdr 9/8Tdr+50 14/8Tdr+50
RXIN Active Edge to
nPULSE1 Active Edge
(Except First Edge of RXIN)
t15
(250) (500) (750)
nS
Note3
(Value at 2.5Mbps)
nPULSE1 to nPULSE2 Overlap
t16 -10 0 +10 nS
1/4Tdr
nPULSE2 Low Pulse Width
t17
(100)
nS
(Value at 2.5Mbps)
3/4Tdr
nPULSE2 High Pulse Width
t18
(300)
nS
(Value at 2.5Mbps)
Tdr
nPULSE2 Period
t19
(400)
nS
(Value at 2.5Mbps)
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)