M3062GF8NFP Datasheet, PDF (225/241 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Rev.1.1
Mitsubishi microcomputers
M3062GF8NFP/GP
Appendix Standard Serial I/O Mode 2 (Flash Memory Version) ^{SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER}
How frequency is identified
When "0016" data is received 16 times from a peripheral unit at a baud rate of 9,600 bps, the value of the
bit rate generator is set to match the operating frequency (2 - 16 MHz). The highest speed is taken from
the first 8 transmissions and the lowest from the last 8. These values are then used to calculate the bit
rate generator value for a baud rate of 9,600 bps.
Baud rate cannot be attained with some operating frequencies. Table 1.32.4 gives the operation fre-
quency and the baud rate that can be attained for.
Table 1.32.4 Operation frequency and the baud rate
Operation frequency
(MHZ)
Baud rate
9,600bps
Baud rate
19,200bps
Baud rate
38,400bps
(Note)
√
√
√
(Note)
√
√
√
(Note)
√
√
√
10MHZ
√
√
–
8MHZ
√
√
–
7.3728MH Z
√
√
√
6MHZ
√
√
√
5MHZ
√
√
–
4.5MHZ
√
√
–
4.194304MH Z
√
√
√
4MHZ
√
√
–
3.58MHZ
√
√
√
3MHZ
√
√
√
2MHZ
√
–
–
Note : Operating m aximum frequency of a microcomputer is 10 MHz.
√ : Communications possible
– : Communications not possible
Baud rate
57,600bps
√
–
–
√
√
√
–
–
√
–
–
√
–
–
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