upd78f0114hgb-8es-a Renesas Electronics Corporation., upd78f0114hgb-8es-a Datasheet - Page 247
upd78f0114hgb-8es-a
Manufacturer Part Number
upd78f0114hgb-8es-a
Description
8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0114HGB-8ES-A.pdf
(505 pages)
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12.3 Registers Controlling Serial Interface UART0
(1) Asynchronous serial interface operation mode register 0 (ASIM0)
Address: FF70H After reset: 01H R/W
Serial interface UART0 is controlled by the following five registers.
Notes 1.
Symbol
ASIM0
This 8-bit register controls the serial communication operations of serial interface UART0.
This register can be set by a 1-bit or 8-bit memory manipulation instruction.
RESET input sets this register to 01H.
Asynchronous serial interface operation mode register 0 (ASIM0)
Asynchronous serial interface reception error status register 0 (ASIS0)
Baud rate generator control register 0 (BRGC0)
Port mode register 1 (PM1)
Port register 1 (P1)
Figure 12-2. Format of Asynchronous Serial Interface Operation Mode Register 0 (ASIM0) (1/2)
2.
POWER0
The input from the R
Asynchronous serial interface reception error status register 0 (ASIS0), transmit shift register 0 (TXS0),
and receive buffer register 0 (RXB0) are reset.
POWER0
RXE0
TXE0
0
<7>
Note 1
1
0
1
0
1
Disables operation of the internal operation clock (fixes the clock to low level) and asynchronously
resets the internal circuit
Enables operation of the internal operation clock.
Disables transmission (synchronously resets the transmission circuit).
Enables transmission.
Disables reception (synchronously resets the reception circuit).
Enables reception.
TXE0
<6>
X
D0 pin is fixed to high level when POWER0 = 0.
CHAPTER 12 SERIAL INTERFACE UART0
RXE0
<5>
User’s Manual U16961EJ4V0UD
Enables/disables operation of internal operation clock
Note 2
.
PS01
4
Enables/disables transmission
Enables/disables reception
PS00
3
CL0
2
SL0
1
0
1
247
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