UPSD3212C-40U6 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

UPSD3212C-40U6

Flash programmable system devices with 8032 MCU and USB and programmable logic

STMicroelectronics 

uPSD3212A, uPSD3212C, uPSD3212CV

Serial Port Control Register

The serial port control and status register is the

Special Function Register SCON (SCON2 for the

second port), shown in Figure 27. This register

(see Tables 43 and 44) contains not only the mode

Figure 27. Serial Port Mode 0, Block Diagram

selection bits, but also the 9th data bit for transmit

and receive (TB8 and RB8), and the Serial Port In-

terrupt Bits (TI and RI).

Write

to

SBUF

Internal Bus

D SQ

CL

SBUF

Zero Detector

RxD

P3.0 Alt

Output

Function

S6

REN

R1

Start

Tx Clock

Tx Control

T

Shift

Send

Serial

Port

Interrupt

Rx Clock

Start

R

Receive

Rx Control

Shift

76543210

Load

SBUF

Read

SBUF

Input Shift Register

SBUF

Shift

Internal Bus

Shift

Clock

RxD

P3.0 Alt

Input

Function

TxD

P3.1 Alt

Output

Function

AI06824

Table 43. Serial Port Control Register (SCON)

7

6

5

4

3

2

1

0

SM0

SM1

SM2

REN

TB8

RB8

TI

RI

56/163

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