参数资料
型号: 784215AY
厂商: NEC Corp.
英文描述: MOS INTEGRATED CIRCUIT
中文描述: 马鞍山集成电路
文件页数: 45/100页
文件大小: 564K
代理商: 784215AY
Data Sheet U14121EJ2V0DS00
45
μ
PD784214A, 784215A, 784216A, 784217A, 784218A, 784214AY, 784215AY, 784216AY, 784217AY, 784218AY
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7.7.1 Asynchronous serial interface/3-wire serial I/O (UART/IOE)
Two channels of serial interfaces for which an asynchronous serial interface mode and a 3-wire serial I/O mode
can be selected are provided.
(1) Asynchronous serial interface mode
In this mode, data of 1 byte following the start bit is transmitted or received.
Because an on-chip baud rate generator is provided, a wide range of baud rates can be set.
Moreover, the clock input to the ASCK pin can be divided to define a baud rate.
When the baud rate generator is used, a baud rate conforming to the MIDI standard (31.25 kbps) can also be
obtained.
Figure 7-10. Block Diagram in Asynchronous Serial Interface Mode
Internal bus
8
8
8
Receive buffer register
1, 2 (RXB1, RXB2)
Receive shift register
1, 2 (RX1, RX2)
Transmit shift register
1, 2 (TXS1, TXS2)
Receive control
parity check
Transmit control
parity addition
5-bit counter
×
2 transmit/
receive clock generation
RxD1, RxD2
TxD1, TxD2
ASCK1, ASCK2
Baud rate generator
INTSR1,
INTSR2
INTST1,
INTST2
Selector
f
XX
to f
XX
/2
5
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784216A MOS INTEGRATED CIRCUIT
784216AY MOS INTEGRATED CIRCUIT
784217A MOS INTEGRATED CIRCUIT
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784218AY MOS INTEGRATED CIRCUIT
相关代理商/技术参数
参数描述
784216A 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT
784216AY 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT
784217A 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT
784217AY 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT
784218A 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT