Toshiba H1 Series - Manual (Page 59)

TMP92CZ26A
92CZ26A-56
e) User program receive error
If either of the following error conditions occurs while a user program is being
received, the boot program stops operation.
If the record type is other than 00H, 01H, or 02H
If a checksum error occurs
f) Measured frequency/baud rate error
When the boot program receives matching data, it measures the oscillation
frequency. If an error is within plus or minus 3%, the boot program decides on that
frequency.
Each baud rate includes a setting error as shown in Table 3.4.13. For example,
in the case of 10.00 MHz /9600 bps, the baud rate is actually set at 9615.38 bps. To
establish communication, the sum of the baud rate setting error and the measured
frequency error must be within plus or minus 3 %.
Table 3.4.13 Baud Rate Setting Errors (%)
9600 bps 19200 bps 38400 bps 57600 bps 115200 bps
6.000 MHz 0.2 0.2
− − −
8.000 MHz 0.2 0.2 − − −
9.000 MHz 0.2
−0.7 − − −
10.000 MHz 0.2 0.2 −1.4 − −
−: Not supported