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PCD6003 Datasheet(PDF) 53 Page - NXP Semiconductors |
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PCD6003 Datasheet(HTML) 53 Page - NXP Semiconductors |
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53 / 96 page  2001 Apr 17 53 Philips Semiconductors Product specification Digital telephone answering machine chip PCD6003 12 EXTERNAL MEMORY INTERFACE The external memory interface consists of the interface from the 80C51 microcontroller to external flash memory and software debugging circuitry such as a Metalink emulator or target debugger. The external memory interface is shown in Fig.22. handbook, full pagewidth MBL284 80C51 MCB and P4 EA ALE P0_INT P2_INT ARD ALE RST P4.3 RD WR PSE P4.1/FSK P4.2/FSO P4.4/FSI P4.0/LE P4.5/GPC WNCAD SCK/CLE DI/ALE DO PSEN E_LCD P0 P0 P1 P3 MA P2 MA P2 IO7 to IO0 CENFLASH OENCAD FLASH and LCD OTP PCD6003 EXTERNAL MEMORY INTERFACE control XRAM MAPPED REGISTERS Fig.22 External memory interface. |
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