Q67120-C1045 データシートの表示（PDF） - Infineon Technologies

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Q67120-C1045

8-Bit CMOS Microcontroller

Infineon Technologies 

C509-L

Normal Mode Configuration

The Normal Mode is the standard 8051 compatible operating mode of the C509-L. In this mode 64K

byte external code memory and 61K byte external SRAM as well as 3K byte internal data memory

(XRAM) are provided. If the is disabled (default after reset), totally 64K byte external data memory

are available. The Boot ROM is disabled. The external program memory is controlled by the PSEN/

RDF signal. Read and write accesses to the external data memory are controlled by the RD and WR

pins of port 3.

Figure 6

Locations of Code- and Data Memory in Normal Mode

Semiconductor Group

17

09.96

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