參數(shù)資料
型號: UPD784216AGC
廠商: NEC Corp.
英文描述: 16-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 16位單晶片微控制器
文件頁數(shù): 44/100頁
文件大?。?/td> 561K
代理商: UPD784216AGC
Data Sheet U14121EJ2V0DS00
44
μ
PD784214A, 784215A, 784216A, 784217A, 784218A, 784214AY, 784215AY, 784216AY, 784217AY, 784218AY
7.7 Serial Interface
Three independent serial interface channels are provided.
Asynchronous serial interface (UART)/3-wire serial I/O (IOE)
×
2
Clocked serial interface (CSI)
×
1
3-wire serial I/O (IOE)
I
2
C bus interface (I
2
C) (
μ
PD784216AY/784218AY Subseries only)
Therefore, communication with an external system and local communication within the system can be
simultaneously executed (refer to
Figure 7-9
).
Figure 7-9. Example of Serial Interface
(a) UART + I
2
C
(b)
[UART]
[UART]
RS-232-C
driver/receiver
RxD1
TxD1
RS-232-C
driver/receiver
Port
RxD2
TxD2
Port
SDA0
SCL0
[I
2
C]
V
DD
V
DD
SDA
SCL
SDA
SCL
LCD
PD4711A
μ
PD4711A
μ
PD784218AY (master)
μ
PD780078Y (slave)
μ
PD780308Y (slave)
μ
(b) UART + 3-wire serial I/O
PD784218AY (master)
μ
RS-232-C
driver/receiver
[UART]
Port
RxD2
TxD2
PD753106 (slave)
μ
SI
SO
SCK
Port
INT
[3-wire serial I/O]
Note
SO1
SI1
SCK1
INTPm
Port
PD4711A
μ
Note
Handshake line
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