May 2024
Intermediate to advanced
534 pages
17h 58m
English
book
8051 Microcontroller, Internals, Instructions, Programming and Interfacing, 2nd Edition
by Subrata Ghoshal
Content preview from 8051 Microcontroller, Internals, Instructions, Programming and Interfacing, 2nd Edition
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249
whereas under identical condition (SMOD = 0), using 11.0592 MHz crystal, the value would be
TH1 ⫽ 256 ⫺ 2
0
⫻ 11059200/(32 ⫻ 12 ⫻ 4800)
⫽ 256 ⫺ 6
⫽ 250 (in decimal)
To conclude, 11.0592 MHz is the LCM of 32, 12 and all standard baud rates and would, therefore, produce
integer results. is is not the case with 12 MHz crystal.
16.5.4 | Initiation of Data Transmission and Reception
Whenever a byte is written in SBUF, the transmission begins automatically. is is valid for all four modes of
communication. erefore, the programmer must ensure that after completion of loading all other registers,
the byte to be transmitted is loaded in SBUF.
Reception is initiated in Mode 0 when REN = 1 and RI = 0. For Modes 1, 2 and 3, reception is ...
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