CLRC63201TSLASH0FE datasheet(155/163 Pages) PHILIPS

155 / 163 page

Philips Semiconductors

Product Specification Rev. 3.0; May 2003

Multiple Protocol Contactless Reader IC

CL RC632

155

Confidential

22.5.2.3 Bus Timing for EPP

SYMBOL

PARAMETER

MIN

MAX

UNIT

tLLLH

nAStrb pulse width

tAVLH

Multiplexed Address Bus valid to nAStrb high (Set Up Time)

tLHAX

Multiplexed Address Bus valid after nAStrb high (Hold Time)

tCLSL

NCS low to nDStrb low

tSHCH

nDStrb high to NCS high

tSLDV,R

nDStrb low to DATA valid (read cycle)

tSHDZ

nDStrb low to DATA high impedance (read cycle)

tSLDV,W

nDStrb low to DATA valid (write cycle, Set up Time)

tSHDX

DATA hold after nDStrb high (write cycle, Hold Time)

tSHRX

nWrite hold after nDStrb high

tSLSH

nDStrb pulse width

tRVSL

nWrite valid to nDStrb low

tSLWH

nDStrb low to nWait high

tSHWL

nDStrb high to nWait low

Table 22-12: Timing Specification for Common Read/Write Strobe

Remark: The figure does not distinguish between the Address Write Cycle and a Data Write Cycle. Take in

account, that timings for the Address Write and Data Write Cycle are different. For the EPP-Mode the

address lines A0 to A2 have to be connected as described in 4.3.

NCS

CLSL

SHDX

SHDZ

D0 ... D7

A0 ... A7

SLDV,R

SLDV,W

nDStrb

nAStrb

SLSH

nWrite

nWait

SLWH

SHWL

RVSL

SHRX

SHCH

Figure 22-3: Timing Diagram for Common Read/Write Strobe

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