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参数资料
| 型号： | XR16V794IV-0B-EVB |
| 厂商： | Exar Corporation |
| 文件页数： | 26/53页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR XR16V794-B 64TQFP |
| 设计资源： | XR17V798/794 Eval Board Schematic |
| 标准包装： | 1 |
| 系列： | * |
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XR16V794
32
HIGH PERFORMANCE 2.25V TO 3.6V QUAD UART WITH FRACTIONAL BAUD RATE
REV. 1.0.1
4.6
Line Control Register (LCR) - Read/Write
The Line Control Register is used to specify the asynchronous data communication format. The word or
character length, the number of stop bits, and the parity are selected by writing the appropriate bits in this
register.
LCR[7]: Baud Rate Divisors Enable
Baud rate generator divisor (DLL, DLM, DLD) enable.
Logic 0 = Data registers are selected (default).
Logic 1 = Divisor latch registers (DLL, DLM and DLD) are selected.
LCR[6]: Transmit Break Enable
When enabled the Break control bit 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.
TABLE 14: TRANSMIT AND RECEIVE FIFO TRIGGER TABLE AND LEVEL SELECTION
TRIGGER
TABLE
FCTR
BIT-7
FCTR
BIT-6
FCR
BIT-7
FCR
BIT-6
FCR
BIT-5
FCR
BIT
-4
RECEIVE
TRIGGER LEVEL
TRANSMIT
TRIGGER
LEVEL
COMPATIBILITY
Table-A
0
1
0
1
0
1
0
1 (default)
4
8
14
1 (default)
16C550, 16C2550,
16C2552, 16C554,
16C580, 16L580
Table-B
0
1
0
1
0
1
0
1
0
1
0
1
0
1
8
16
24
28
16
8
24
30
16C650A, 16L651
Table-C
1
0
1
0
1
0
1
0
1
0
1
0
1
8
16
56
60
8
16
32
56
16C654
Table-D
1
X
Programmable
via RXTRG
register
Programmable
via TXTRG
register
16L2752, 16L2750,
16C2852, 16C850,
16C854, 16C864
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XR16V794IV-F | 功能描述:UART 接口集成电路 UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| XR16V798 | 制造商:EXAR 制造商全称:EXAR 功能描述:HIGH PERFORMANCE 2.25V TO 3.6V OCTAL UART WITH FRACTIONAL |
| XR16V798_08 | 制造商:EXAR 制造商全称:EXAR 功能描述:HIGH PERFORMANCE 2.25V TO 3.6V OCTAL UART WITH FRACTIONAL |
| XR16V798IQ | 制造商:EXAR 制造商全称:EXAR 功能描述:HIGH PERFORMANCE 2.25V TO 3.6V OCTAL UART WITH FRACTIONAL |
| XR16V798IQ-0A-EVB | 功能描述:UART 接口集成电路 Supports V798 100 ld QFP,ISA Interface RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
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