參數(shù)資料
型號： XR16L788
廠商： Exar Corporation
英文描述： HIGH PERFORMANCE OCTAL UART
中文描述： 高性能八進制的UART
文件頁數(shù)： 26/42頁
文件大?。?/td> 557K
代理商： XR16L788
áyyyyyyyyyyyy
XR16L788 OCTAL UART
REV. 1.1.4
26
LCR[2]: TX and RX Stop-bit Length Select
The length of stop bit is specified by this bit in con-
junction with the programmed word length.
LCR[3]: TX and RX Parity Select
Parity or no parity can be selected via this bit. The
parity bit is a simple way used in communications for
data integrity check. See
Table 11
for parity selection
summary below.
Logic 0 = No parity.
Logic 1 = A parity bit is generated during the trans-
mission while the receiver checks for parity error of
the data character received.
LCR[4]: TX and RX Parity Select
If the parity bit is enabled with LCR bit-3 set to a logic
1, LCR BIT-4 selects the even or odd parity format.
Logic 0 = ODD Parity is generated by forcing an odd
number of logic 1’s in the transmitted character. The
receiver must be programmed to check the same for-
mat. (default).
Logic 1 = EVEN Parity is generated by forcing an
even the number of logic 1’s in the transmitted
character. The receiver must be programmed to
check the same format.
LCR[5]: TX and RX Parity Select
If the parity bit is enabled, LCR BIT-5 selects the
forced parity format.
LCR BIT-5 = logic 0, parity is not forced. (default)
LCR BIT-5 = logic 1 and LCR BIT-4 = logic 0, parity
bit is forced to a logical 1 for the transmit and
receive data.
LCR BIT-5 = logic 1 and LCR BIT-4 = logic 1, parity
bit is forced to a logical 0 for the transmit and
receive data.
T
ABLE
11: P
ARITY
SELECTION
LCR[6]: Transmit Break Enable
When enabled the Break control bit it causes a
break condition to be transmitted (the TX output is
forced to a “space’, logic 0, state). This condition
remains until disabled by setting LCR bit-6 to a
logic 0.
Logic 0 = No TX break condition. (default)
Logic 1 = Forces the transmitter output (TX) to a
“space”, logic 0, for alerting the remote receiver of a
line break condition.
LCR[7]: Baud Rate Divisors Enable
Baud rate generator divisor (DLL/DLM) enable.
Logic 0 = Data registers are selected. (default)
Logic 1 = Divisor latch registers are selected.
Modem Control Register (MCR) or General Pur-
pose Outputs Control.
This register controls the serial interface signals with
the modem or a peripheral device.
Modem Control Register (MCR)
The MCR register is used for controlling the modem
interface signals or general purpose inputs/outputs.
MCR[0]: DTR# Pins
The DTR# pin may be used for automatic hardware
flow control enabled by EFR bit-6 and MCR bit-2=1. If
the modem interface is not used, this output may be
used for general purpose.
Logic 0 = Force DTR# output to a logic 1. (default)
Logic 1 = Force DTR# output to a logic 0.
MCR[1]: RTS# Pins
The RTS# pin may be used for automatic hardware
flow control by enabled by EFR bit-6 and MCR bit-
2=0. If the modem interface is not used, this output
may be used for general purpose.
Logic 0 = Force RTS# output to a logic 1. (default)
Logic 1 = Force RTS# output to a logic 0.
MCR[2]: RTS/CTS or DTR/DSR for Auto Flow Con-
trol
DTR# or RTS# auto hardware flow control select.
This bit is in effect only when auto RTS/DTR is en-
abled by EFR bit-6.
Logic 0 = RTS# (RX side) and CTS# (TX side) pins
are used for auto hardware flow control.
Logic 1 = DTR# (RX side) and DSR# (TX side) pins
are used for auto hardware flow control.
MCR[3]:
Reserved. Logic zero is default.
BIT-2
W
ORD
LENGTH
S
TOP
BIT
LENGTH
(B
IT
TIME
(
S
))
0
1
1
5,6,7,8
5
6,7,8
1 (default)
1-1/2
2
LCR B
IT
-5 LCR B
IT
-4 LCR B
IT
-3
P
ARITY
SELECTION
X
0
0
1
1
X
0
1
0
1
0
1
1
1
1
No parity
Odd parity
Even parity
Force parity to mark, “1”
Forced parity to space,
“0”
相關(guān)PDF資料
PDF描述
XR16L788CQ HIGH PERFORMANCE OCTAL UART
XR16L788IQ HIGH PERFORMANCE OCTAL UART
XR17C154 Tip, Offset Tapered Needle, 1mm Diameter
XR17C154CV Burner
XR17C154IV Tools, Heatgun; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No RoHS Compliant: No
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16L788_05 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
XR16L788_08 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
XR16L788CQ 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
XR16L788CQ-0A-EVB 功能描述:UART 接口集成電路 Supports L788 100 ld QFP, ISA Interface RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR16L788CQ-0B-EVB 功能描述:界面開發(fā)工具 Supports L788 100 ld QFP, PCI Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*