VTech Alphabert s Magic Readport User Manual download pdf (Page 47)

BM Dept., Govt. Engg. College, Gandhinagar Page 47

MOV TH1,#0FDh ;Count value for baud rate 9600

MOV SCON,#50h ;8 bit UART mode, REN enable

MOV R0,#20h ;Pointer to the RAM location

SETB TR1 ;Start timer 1 to generated baud rate.

next: MOV A,SBUF

HERE: JNB RI,HERE

CLR RI

MOV @R0,A

INC R0

SJMP next ;Repeat task

END

:: WORKSHEET ::

A. Modify program to display received data on the LCD connected at port P1. Assume

control lines of LCD RS, EN and WR are connected to P2.0, P2.1 and P2.2 respectively.

Memory

Location

HEX

code

Label Opcode Operands Comments

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 79 80

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VTech Alphabert s Magic Readport User Manual Page 47