参数资料
型号: XR16L788CQ-F
厂商: Exar Corporation
文件页数: 17/54页
文件大小: 0K
描述: IC UART 64B 3.3V OCTAL 100QFP
标准包装: 66
特点: *
通道数: 8
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: 100-BQFP
供应商设备封装: 100-QFP(14x20)
包装: 托盘
其它名称: 1016-1283
XR16L788
24
HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
REV. 1.2.3
3.1.2.1
TIMER [7:0] (default 0x00):
Reserved.
3.1.2.2
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 power-up 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 [15:8](default 0x00)
Reserved.
TABLE 10: TIMER CONTROL REGISTER
TIMERCNTL [0]
Logic zero (default) disables Timer-Counter interrupt and logic one enables the interrupt, reading the
TIMERCNTL clears the interrupt.
TIMERCNTL [1]
Logic zero (default) stops/pauses the timer and logic one starts/re-starts the timer/counter.
TIMERCNTL [2]
Logic zero (default) selects re-trigger timer function and logic one selects one-shot (timer function.
TIMERCNTL [3]
Logic zero (default) selects internal and logic one selects external clock to the timer/counter.
TIMERCNTL [7:4]
Reserved (defaults to zero).
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
Ch-6
Ch-7
Ch-5 Ch-4 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
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