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COM20022ITQFP Datasheet(PDF) 76 Page - SMSC Corporation

Part # COM20022ITQFP
Description  10 MBPS ARCNET CONTROLLER WITH 2KX8 ON BOARD RAM
PDF  83 Pages
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

COM20022ITQFP Datasheet(HTML) 76 Page - SMSC Corporation

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10 Mbps ARCNET (ANSI 878.1) Controller with 2Kx8 On-Board RAM
Datasheet
Rev. 08-18-03
Page 76
SMSC COM20022I
DATASHEET
Note*: t7 is measured from the latest active timing among TC, Write/Read.
VALID
VALID
nCS
nREFEX
DREQ
nDACK
TC
DIR
nDS
DATA
(D15-D0)
t10
t19
t3
t2
t21
t24
t6
t20
t19
t20
t3
t7*
t25
t24
t25
t5
t4
t15
t16
t11
t12
t8
t9
t14
t13
t17
t18
Write LOW-POINTER
when DMAEN=1
t22
t23
t22
t23
VALID
VALID
t26
t1
Figure 8.18
- DMA Timing (Motorola Mode 68XX)



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