UPD78F9418A NEC, UPD78F9418A Datasheet - Page 171
UPD78F9418A
Manufacturer Part Number
UPD78F9418A
Description
(UPD7894xxA) 8-Bit Single Chip Microcontrollers
Manufacturer
NEC
Datasheet
1.UPD78F9418A.pdf
(319 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F9418A
Manufacturer:
NEC
Quantity:
1 831
Part Number:
UPD78F9418AGC
Manufacturer:
NEC
Quantity:
20 000
Company:
Part Number:
UPD78F9418AGC-8BT-A
Manufacturer:
RENESAS
Quantity:
800
Company:
Part Number:
UPD78F9418AGC-8BT-A
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Part Number:
UPD78F9418AGK-9EU
Manufacturer:
NEC
Quantity:
20 000
Company:
Part Number:
UPD78F9418AGK-9EU-A
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 171 of 319
- Download datasheet (3Mb)
www.DataSheet4U.com
13.1 Functions of Serial Interface 00
Serial interface 00 has the following three modes.
• Operation stopped mode
• Asynchronous serial interface (UART) mode
• 3-wire serial I/O mode
(1)
(2)
(3)
Operation stopped mode
This mode is used to reduce power consumption when serial transfer is not carried out.
Asynchronous serial interface (UART) mode
In this mode, one byte of data following the start bit is transmitted/received, and full-duplex operation is
possible.
A dedicated UART baud rate generator is incorporated, allowing communication over a wide range of baud
rates. In addition, the baud rate can be defined by dividing the clock input to the ASCK pin.
3-wire serial I/O mode (MSB/LSB start bit switchable)
In this mode, 8-bit data transfer is carried out using three lines, one for the serial clock (SCK) and two for
serial data (SI, SO).
The 3-wire serial I/O mode supports simultaneous transmit and receive operations, reducing data transfer
processing time.
It is possible to switch the start bit of 8-bit data to be transmitted between the MSB and the LSB, thus
allowing connection to devices with either start bit.
The 3-wire serial I/O mode is effective for connecting display controllers and peripheral I/Os such as the
75XL Series, 78K Series, and 17K Series, which have conventional clock synchronous serial interfaces.
CHAPTER 13 SERIAL INTERFACE 00
User’s Manual U13952EJ3V0UD
171
Related parts for UPD78F9418A
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
16BIT MCU, 128K FLASH, 8K RAM, SMD
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
8BIT UC, 32K FLASH, 1KB RAM, LCD
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
8BIT MCU, 60K FLASH, 3KB RAM, CAN
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
8BIT MCU, 128K FLASH, 7K RAM, LQFP
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
8BIT MCU, 4K FLASH, 128B RAM, SMD
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
16/8 bit single-chip microcomputer
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
Dual audio power amp circuit
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
Dual comparator
Manufacturer:
NEC
Datasheet:
Part Number:
Description:
MOS type composite field effect transistor
Manufacturer:
NEC
Datasheet: