参数资料
型号: XR16L784CV-F
厂商: Exar Corporation
文件页数: 16/51页
文件大小: 0K
描述: IC UART 8B 3.3V QUAD 64LQFP
标准包装: 160
特点: *
通道数: 4,QUART
FIFO's: 64 字节
规程: RS485
电源电压: 2.97 V ~ 5.5 V
带自动流量控制功能:
带IrDA 编码器/解码器:
带故障启动位检测功能:
带调制解调器控制功能:
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-LQFP(10x10)
包装: 托盘
其它名称: 1016-1281
XR16L784
23
REV. 1.2.3
HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
TIMER [7:0] (default 0x00): Reserved.
TIMERMSB [7:0] and TIMERLSB [7:0]
TIMERMSB and TIMERLSB form a 16-bit value. The least-significant bit of the timer is being bit [0] of the
TIMERLSB with most-significant-bit being bit [7] in TIMERMSB. Reading the TIMERCNTL register will clear its
interrupt. Default value is zero upon powerup and reset.
3.1.3
8XMODE [7:0] (default 0x00)
Each bit selects 8X or 16X sampling rate for that UART channel, bit-0 is channel 0. Logic 0 (default) selects
normal 16X sampling with logic one selects 8X sampling rate. Transmit and receive data rates will double by
selecting 8X.
3.1.4
REGA [7:0] reserved (default 0x00)
3.1.5
RESET [7:0] (default 0x00)
The 8-bit Reset register [RESET] provides the software with the ability to reset individual UART(s) when there
is a need. Each bit is self-resetting after it is written a logic 1 to perform a reset to that channel. All registers in
that channel will be reset to the default condition, see Table 19 for details. As an example, bit-0 =1 resets
UART channel 0 with bit-3=1 resets channel 3.
TIMERCNTL Register
Rsvd
Clock
Select
Single/
Re-trigger
Start/
Stop
INT
Enable
Bit-7 Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
TIMERMSB Register
Bit-15
Bit-14
Bit-13
Bit-12
Bit-11
Bit-10
Bit-9
Bit-8
TIMERLSB Register
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
16-Bit Timer/Counter Programmable Registers
Rsvd
Rsvd Rsvd Ch-3 Ch-2 Ch-1 Ch-0
8XMODE Register
Individual UART Channel 8X Clock Mode Enable
Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2 Bit-1 Bit-0
Rsvd
Rsvd Rsvd Ch-3 Ch-2 Ch-1 Ch-0
RESET Register
Individual UART Channel Reset Enable
Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2 Bit-1 Bit-0
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