tmp19a43fzxbg TOSHIBA Semiconductor CORPORATION, tmp19a43fzxbg Datasheet - Page 241
tmp19a43fzxbg
Manufacturer Part Number
tmp19a43fzxbg
Description
32bit Tx System Risc
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TMP19A43FZXBG.pdf
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(2) Baud rate
which data is transferred via serial channels.
the 6-bit prescaler. This input clock is selected by setting the bits BR0CR<BR0CK1:BR0CK0> in
the baud rate generator control register.
BR0CR<BR0ADDE,BR0S3:BR0S0> and BR0ADD<BR0K3:BR0K0> to specify the rate of
transfer.
•
•
BR0CR<BR0ADDE> to 0 so that the input clock will be divided by N.
16
1)
2)
m
Note: When N = 1 or 16, division by N+(16-K)/16 is disabled. In that case, always set
The baud rate generator is used to generate the transmit/receive clock which determines the rate at
The clock source fed to the baud rate generator is the clock φT0, φT2, φT8 or φT32 as output by
The baud rate generator contains a divider which can divide the input clock frequency by 1, n +
Division by N+(16-K)/16 cannot be used in I/O interface mode. In this mode always set
The baud rate is calculated as follows:
(n = 2-15, m = 0-15) or 16. The input clock frequency is divided according to the values set in
For UART mode
For I/O interface mode
When BR0CR<BR0ADDE> = 0
value N set in BR0CR<BR0S3:BR0S0> (N = 1, 2, 3... 16).
When BR0CR<BR0ADDE> = 1
<BR0S3:BR0S0> (N = 2, 3... 15) and the value of K is specified by BR0ADD<BR0K3:0> (K =
1, 2, 3... 15).
•
is generated when φT0 = 8 MHz.
If fsys/2 is used as a serial clock, the maximum baud rate is 1 Mbps, which is generated when
fsys = 32 MHz.
•
The value set in BR0ADD<BR0K3:BR0K0> is ignored and the input clock is divided by the
The input clock is divided by N+(16-K)/16, where the value of N is specified by BR0CR
The maximum baud rate which can be generated by the baud rate generator is 500 kbps and
In addition to an output from the baud rate generator, fsys/2 can also be used as a serial clock.
BR0CR<BR0ADDE> to 0.
In UART mode
In I/O interface mode
Baud rate =
Baud rate =
Baud
Baud
TMP1942CY/CZ-240
Baud
Baud
rate
rate
rate
rate
generator
generator
generator
generator
input
input
divisor
divisor
clock
clock
÷ 16
÷ 2
TMP1942CY/CZ
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