TMPM330 - Keil

Under development
TMPM330 (rev 0.4) 9-33
TMPM330
(Note 1) To use the “N + (16 - K)/16” division function, be sure to set BR0K to
“1” after setting the K value to BR0K. The “N + (16 - K)/16” division function can
only be used in the UART mode.
(Note 2) The division ratio “1” of the baud rate generator can be specified only when
・the “N + (16 - K)/16” division function is not used in the UART mode.
・double buffering is used in the I/O interface mode.
(Note 3) As a division ratio, 1 (“0001”) or 16 (“0000”) cannot be applied to N when using the
“N + (16 - K)/16” division function.
(Note 4) Specifying “K = 0” is prohibited.
9.4.8 FIFO configuration register
SC0FCNF
7 6 5 4 3 2 1 0
bit Symbol Reserved Reserved Reserved RFST TFIE RFIE RXTXCNT CNFG
Read/Write R/W
After reset 0 0 0 0 0 0 0 0
Bytes used TX interrupt RX Automatic FIFO
in RX for TX FIFO interrupt for disable of enable
Be sure to write “000”.
FIFO 0: Disabled RX FIFO RXE/TXE 0:
Function
0:
Maximum
1: Enabled 0:Disabled
1: Enabled
0:None
1:Auto
Disabled
1:
1:Same as
disab Enabled
FILL level
of RX FIFO
le
: When RX FIFO is enabled, the number of RX FIFO bytes to be used is selected (see
note).
0: The maximum number of bytes of the FIFO configured (see also ).
1: Same as the fill level for receive interrupt generation specified by SC0RFC .
: When TX FIFO is enabled, transmit interrupts are enabled or disabled by this parameter.
: When RX FIFO is enabled, receive interrupts are enabled or disabled by this parameter.
: Controls automatic disabling of transmission and reception.
The mode control register SCOMOD1 is used to set the types of TX/RX.
Setting “1” enables to operate as follows.
Half duplex
RX
When the RX FIFO is filled up to the specified number of valid bytes,
SC0MOD0 is automatically set to “0” to inhibit further
reception.
Half duplex When the TX FIFO is empty, SC0MOD1 is automatically set
TX
to “0” to inhibit further transmission.
Full duplex When either of the above two conditions is satisfied, TXE/RXE are
automatically set to “0” to inhibit further transmission and
reception.
: Enables FIFO.
If enabled, the SCOMOD1 setting automatically configures FIFO as follows:
(The type of TX/RX can be specified in the mode control register 1
SC0MOD1).
Serial Channel (SIO)