參數(shù)資料
型號: μPD780988
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8 Bit Single Chip Microcontrollers
中文描述: 8位單片機(jī)微控制器
文件頁數(shù): 27/48頁
文件大小: 256K
代理商: ΜPD780988
27
μ
PD780984, 780986, 780988
5.6 Serial Interface
Three serial interface channels are incorporated.
Serial interface (UART0n) (n = 0, 1): 2 channels
Serial interface (SIO3): 1 channel
(1) Serial interface (UART00, UART01)
UART0n (n = 0, 1) provides the following modes:
Asynchronous serial interface (UART) mode
This mode is used to transmit and receive 1-byte data following the start bit. Full-duplex operation is
available. A UART dedicated baud rate generator is incorporated. Any baud rate in a wide range can be
used for communication. By setting the mode register, the baud rate can be selected in the range of 600
bps to 115.2 kbps (@ f
X
= 8.38-MHz operation) for UART00 and of 300 bps to 38.4 kpbs (@ f
X
= 8.38-MHz
operation) for UART01.
Infrared data transfer mode (UART00 only)
115.2 kbps baud rate communication (@ fx = 7.3728-MHz operation) is available.
Figure 5-8. Serial Interface (UART0n) Block Diagram
Notes 1.
Fixed to 0 for UART01.
2.
Receive error interrupt request does not occur for UART 01.
Remark
n = 0, 1
Internal Bus
Receive
Buffer
Register n
RXB0n
RX0n
RxD0n
TxD0n
Receive
Shift
Register n
Transmit
Shift
Register n
PE0n FE0n
OVE0n
ASIS0n
TXS0n
Receive
Controller
(Parity
Check)
Transmit
Controller
(With
Parity)
INTSER0
Note 2
INTSTn
Baud Rate
Generator
f
X
/2 to f
X
/2
8
(For UART00)
f
X
/2
2
to f
X
/2
9
(For UART01)
TXE0n RXE0n
PS0n1 PS0n0
CL0n SL0n
Note 1
ISRM00
Note 1
IRDAM00
ASIM0n
INTSRn
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