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參數(shù)資料
| 型號(hào)： | ST16654 |
| 廠商： | Exar Corporation |
| 英文描述： | QUAD UART WITH 64-BYTE FIFO AND INFRARED (IrDA) ENCODER/DECODER |
| 中文描述： | 四UART的64字節(jié)FIFO和紅外線（IrDA）編碼/解碼器 |
| 文件頁數(shù)： | 12/49頁 |
| 文件大小： | 444K |
| 代理商： | ST16654 |
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ST16C654/654D
5-76
Rev. 4.10
Symbol
Pin
100
Signal
type
Pin Description
68
64
RX/IRRX A-B
RX/IRRX C-D
7,29
41,63
97,34
47,85
62,20
29,51
I
Receive Data Input RX/IRRX A-D. - These inputs are
associated with individual serial channel data to the
ST16C654. Two user selectable interface options are avail-
able. The first option supports the standard modem inter-
face. The second option provides an Infrared decoder
interface, see figures 2/3. When using the standard modem
interface, the RX signal will be a logic 1 during reset, idle (no
data), or when the transmitter is disabled. The inactive state
(no data) for the Infrared decoder interface is a logic 0. MCR
bit-6 selects the standard modem or infrared interface.
During the local loopback mode, the RX input pin is disabled
and TX data is internally connected to the UART RX Input,
internally.
TX/IRTX A-B
TX/IRTX C-D
17,19
51,53
14,16
65,67
8,10
39,41
O
Transmit Data - These outputs are associated with indi-
vidual serial transmit channel data from the 654. Two user
selectable interface options are available. The first user
option supports a standard modem interface. The second
option provides an Infrared encoder interface, see figures 2/
3. When using the standard modem interface, the TX signal
will be a logic 1 during reset, idle (no data), or when the
transmitter is disabled. The inactive state (no data) for the
Infrared encoder/ decoder interface is a Logic 0. MCR bit-
6 selects the standard modem or infrared interface. During
the local loopback mode, the TX input pin is disabled and TX
data is internally connected to the UART RX Input.
SYMBOL DESCRIPTION
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