tmp1940cyaf TOSHIBA Semiconductor CORPORATION, tmp1940cyaf Datasheet - Page 408

• Manufacturer Part Number: tmp1940cyaf
• Description: 32-bit Tx System Risc Tx19 Family
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Table 3.13 Relationships Between SIO Baud Rates and Frequencies Recommended in Single Boot Mode
External Clock
External Clock
3.5.17
Frequency
Frequency
20 MHz
16 MHz
20 MHz
16 MHz
8 MHz
7 MHz
6 MHz
8 MHz
7 MHz
6 MHz
Relationships Between Baud Rates and Operating Frequencies
Use the following table as a guide when determining the operating frequency and the baud rate.
I/O Interface Mode
UART Mode
PLL
PLL
On
On
On
Off
Off
On
On
On
Off
Off
Frequency
Frequency
Operating
Operating
32 MHz
28 MHz
24 MHz
20 MHz
16 MHz
32 MHz
28 MHz
24 MHz
20 MHz
16 MHz
TMP1940FDBF-50
1.25 M 850 M 500 K 250 K 125 K 62.5 K
76800 57600 38400 19200 9600
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Baud Rate (bps)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Baud Rate (bps)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
TMP1940FDBF
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
4800
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
2400
Yes
Yes
Yes
Yes
Yes