參數資料
型號： XR17D152
廠商： Exar Corporation
英文描述： UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART
中文描述： 通用（3.3V和5V）PCI總線的雙UART
文件頁數： 17/68頁
文件大?。?/td> 772K
代理商： XR17D152
á
REV. 1.2.0
XR17D152
UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART
17
TIMERMSB [31:24] and TIMERLSB [23:16]
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. Notice that these registers do not hold the
current counter value when read. Reading the TIMERCNTL register will clear its interrupt. Default value is zero
(timer disabled) upon powerup and reset.
2.2.3
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.
8XMODE [7:0] (default 0x00)
2.2.4
2.2.5
Bits 0 to 1 of the Reset register [RESET] provides the software with the ability to reset the 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 on page 50
for details. Bit-0 =1 resets UART
channel 0 while bit-1=1 resets channel 1.
REGA [15:8]
Reserved
RESET [23:16] - (default 0x00)
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 Rsvd Rsvd Rsvd 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 Rsvd Rsvd Rsvd
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
相關PDF資料
PDF描述
XR17D152CM UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART
XR17D152IM UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART
XR17D158IV UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
XR17D158 UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
XR17D158CV UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
相關代理商/技術參數
參數描述
XR17D152CM 制造商:EXAR 制造商全稱:EXAR 功能描述:UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART
XR17D152CM-0A-EVB 功能描述:界面開發(fā)工具 Supports D152 100 ld TQFP, PCI Interface RoHS:否 制造商:Bourns 產品: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
XR17D152CM-F 功能描述:UART 接口集成電路 3.3V-5V 64B FIFO temp 0C to 70C; UART RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率: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
XR17D152CMTR-F 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率: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
XR17D152IM 制造商:EXAR 制造商全稱:EXAR 功能描述:UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART
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