C51: SUPPORT FOR THE 8744 SDLC MICROCONTROLLER

QUESTION

We currently use the Keil 8051 development tools. Will these tools support the Intel 8744 SDLC microcontroller?

ANSWER

Yes. The Keil 8051 development tools support ALL 8051 derivatives including the 8044, 8344, and 8744 devices.

You will need to add SFR definitions for the SDLC special function registers, but that is very easy to do.

For example, the serial mode register (SMD), status/command register (STS), and send/receive count register (NSNR) are defined as follows:

sfr SMD = 0xC9;
sfr STS = 0xC8;
sfr NSNR = 0xD8;

Refer to the Intel 8-bit Embedded Controllers databook for the SFRs and their addresses.

Last Reviewed: Thursday, May 13, 2004