IMSC011 データシートの表示（PDF） - STMicroelectronics

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IMSC011

Link adaptor

STMicroelectronics 

6 Mode 2 parallel interface

Symbol

TRSVCSL

TCSLRSX

TRWVCSL

TCSLRWX

TCSLCSH

TCSHCSL

Parameter

Register select setup

Register select hold

Read/write strobe setup

Read/write strobe hold

Chip select active

Delay before re-assertion of chip select

Min Nom Max

5

8

5

8

60

50

Table 6.2 IMS C011 Mode 2 parallel interface control

Units

ns

ns

ns

ns

ns

ns

Notes

Symbol

TLdVIIH

TCSLIIL

TCSLDrX

TCSLDrV

TCSHDrZ

TCSHDrX

TCSHLaV

Parameter

Start of link data to InputInt high

Chip select to InputInt low

Chip select to bus active

Chip select to data valid

Chip select high to bus tristate

Data hold after chip select high

Chip de-select to start of Ack

Min Nom Max Units Notes

14

bits

1

35

ns

5

ns

50

ns

38

ns

5

ns

0.8

2.5

bits

1,2

Notes

1 Unit of measurement is one link data bit time; at 10 Mbits/s data link speed, one bit time is nomi-

nally 100 ns.

2 Maximum time assumes there is no data packet already on the link. Maximum time with data on

the link is extended by 11 bits.

Table 6.3 IMS C011 Mode 2 parallel interface read

LinkIn

InputInt

RS0–1

RnotW

notCS

D0–7

LinkOut

Data

TLdVIIH

TRSVCSL

TCSLIIL

TCSLRSX

Data

TRWVCSL

TCSLRSX

TCSLCSH TCSHCSL

TCSLDrV

TCSLDrX

TCSHDrZ

TCSHDrX

TCSHLaV

Ack

Figure 6.1 IMS C011 Mode 2 read parallel data from link adaptor

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