UPD78F9418AGK-9EU Renesas Electronics America, UPD78F9418AGK-9EU Datasheet - Page 187

• Manufacturer Part Number: UPD78F9418AGK-9EU
• Manufacturer: Renesas Electronics America

Specifications of UPD78F9418AGK-9EU

• Lead Free Status / Rohs Status: Supplier Unconfirmed

13.4.2 Asynchronous serial interface (UART) mode
are possible.
rate. In addition, the baud rate can also be defined by dividing the clock input to the ASCK pin.
standard.
In this mode, the one-byte data following the start bit is transmitted/received and thus full-duplex communications
This device incorporates a UART-dedicated baud rate generator, enabling communication at the desired baud
The UART-dedicated baud rate generator can also output a 31.25 kbps baud rate, which complies with the MIDI
(1)
CSIM00
Symbol
Register setting
UART mode is set by serial operation mode register 00 (CSIM00), asynchronous serial interface mode
register 00 (ASIM00), asynchronous serial interface status register 00 (ASIS00), and baud rate generator
control register 00 (BRGC00).
(a)
Serial operation mode register 00 (CSIM00)
CSIM00 is set using a 1-bit or 8-bit memory manipulation instruction.
RESET input sets CSIM00 to 00H.
Set CSIM00 to 00H in the UART mode.
Caution Bits 0 and 3 to 6 must be fixed to 0.
CSCK00
CSIE00
CSIE00
DIR00
<7>
0
1
0
1
0
1
Operation stopped
Operation enabled
MSB
LSB
Clock input to SCK pin from external
Dedicated baud rate generator output
6
0
5
0
4
0
CHAPTER 13 SERIAL INTERFACE 00
3
0
User’s Manual U13952EJ3V1UD
DIR00 CSCK00
Operation control in 3-wire serial I/O mode
Clock selection in 3-wire serial I/O mode
2
1
Start bit specification
0
0
Address
FF72H
After reset
00H
R/W
R/W
185