TMP19A71CYFG Datasheet, PDF (351/402 Pages) Toshiba Semiconductor – 32-Bit RISC Microprocessor

TMP19A71
(10) Recommended baud rates for the boot program
Table 17.3.10 Recommended Baud Rates in Single Boot Mode (UART Mode)
PRSC = BR2CR[5:4], N = BR2CR [3:0], K = BR2ADD[3:0]
Note 1:
Note 2:
Note 3:
While the serial operation mode is being determined, the baud rate is determined by measuring the waveform
with a timer. Capture value errors generated by the prescaler source clock and division errors that occur in the
serial mode determination flow may make it impossible to set the baud rate.
The above table shows expected combinations of frequency and baud rate settings, and other combinations
may be used.
Due to the specifications of the boot program, the fastest baud rate setting allowed is BR2CR=02H. The
controller must communicate at a baud rate equal to or slower than this setting.
Table 17.3.11 Recommended Baud Rate Values in Single Boot Mode (I/O Interface Mode)
Operating Frequency
(MHz)
Baud Rate in I/O Interface Mode (bps)
56
3M
2.5M
1.25M
1M
500K
250K
40
2M
1.25M
1M
500K
250K
125K
Note: When I/O Interface mode is selected, a wait time is generated after transmitting/receiving every single byte.
TMP19A71 17-47