Intel 8XC251SA User Manual page 174

Embedded microcontroller

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Table of Contents

8XC251SA, SB, SP, SQ USER'S MANUAL

Table 10-2. Serial Port Special Function Registers

Serial Buffer. Two separate registers comprise the SBUF register. Writing

to SBUF loads the transmit buffer; reading SBUF accesses the receive

Serial Port Control. Selects the serial port operating mode. SCON enables

and disables the receiver, framing bit error detection, multiprocessor

communication, automatic address recognition, and the serial port interrupt

Serial Address. Defines the individual address for a slave device.

Serial Address Enable. Specifies the mask byte that is used to define the

given address for a slave device.

Figure 10-1. Serial Port Block Diagram

Shift Register

8xc251sb 8xc251sp 8xc251sq