SLRC400 Datasheet, PDF (14/130 Pages) NXP Semiconductors – I·CODE Reader IC

Philips Semiconductors
I•CODE Reader IC
Product Specification Rev. 2.0 November 2001
SL RC400
4.3.2 COMMON READ/WRITE STROBE: MOTOROLA TYPE COMPATIBLE
Address Bus (A3...An)
Address
Decoder
SL RC400
NCS
Address Bus (A0...A2)
Data Bus (D0...D7)
HIGH
Data Strobe (NDS)
Read/Write (R/NW)
A0...A2
D0...D7
ALE
NRD
NWR
Non Multiplexed Address
Address
Decoder
LOW
HIGH
LOW
Multiplexed Address/Data (AD0...AD7)
Address Strobe (AS)
Data Strobe (NDS)
Read/Write (R/NW)
SL RC400
NCS
A2
A1
A0
D0...D7
ALE
NRD
NWR
Figure 4-2: Connection to µ-Processors with Common Read/Write Strobes
For timing specification refer to chapter 19.5.2.2.
14
Preliminary