UPD784035YGC NEC, UPD784035YGC Datasheet - Page 40

• Manufacturer Part Number: UPD784035YGC
• Description: 16-/8-BIT SINGLE-CHIP MICROCONTROLLERS
• Manufacturer: NEC

7.8
neously executed (refer to Figure 7-9).
40
Three independent serial interface channels are provided.
• Asynchronous serial interface (UART)/3-wire serial I/O (IOE)
• Clocked serial interface (CSI)
Therefore, communication with an external system and local communication within the system can be simulta-
Note Handshake line
• 3-wire serial I/O (IOE)
• 2-wire serial I/O (IOE)
• I
2
Serial Interface
C bus interface (I
driver/receiver
driver/receiver
RS-232-C
RS-232-C
PD4711A
PD4711A
driver/receiver
RS-232-C
PD4711A
2
C)
[UART]
[UART]
[UART]
(b) UART + 3-wire serial I/O + 2-wire serial I/O
PD784038Y (master)
RxD
TxD
RxD2
TxD2
Figure 7-9. Example of Serial Interface
1
Port
Port
PD784038Y (master)
RxD
TxD
Port
SDA
SCL
(a) UART + I
INTPm
INTPn
SCK1
PD784035Y, 784036Y, 784037Y, 784038Y
SDA
SO1
SCL
Port
Port
SI1
[I
2
C]
[3-wire serial I/O]
[2-wire serial I/O]
V
Note
Note
2
C
DD
2
V
V
DD
DD
PD6272 (EEPROM
PD78062Y (slave)
V
SDA
SCL
SDA
SCL
DD
SI
SO
SCK
Port
INT
SB0
SCK0
Port
INT
PD75108 (slave)
PD78014 (slave)
TM
)
LCD