參數(shù)資料
型號： XR16V698IQ-0A-EVB
廠商： Exar Corporation
文件頁數(shù)： 22/58頁
文件大?。?/td> 0K
描述： EVAL BOARD FOR XR16V698-A 100QFP
標(biāo)準(zhǔn)包裝： 1
系列： *
XR16V698
29
REV. 1.0.3
2.25V TO 3.6V HIGH PERFORMANCE OCTAL UART WITH 32-BYTE FIFO
3.1.5
RESET [7:0] (default 0x00)
The 8-bit RESET register 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 18 for details. As an example, bit-0 =1 resets UART
channel 0 with bit-7=1 resets channel 7.
3.1.6
SLEEP [7:0] (default 0x00)
The 8-bit Sleep register enables each UART separately to enter Sleep mode. Sleep mode reduces power
consumption when the system needs to put the UART(s) to idle. The UART enters sleep mode when there is
no interrupt pending. When all 8 UARTs are put to sleep, the on-chip oscillator shuts off to further conserve
power. In this case, the octal UART is awaken by any of the UART channels from a receive data byte or a
change on any of the modem inputs (CTS#, DSR#, CD#, RI#). The UART is ready after 32 crystal clocks to
ensure full functionality. Also, a special interrupt is generated with an indication of no pending interrupt. Logic 0
(default) and logic 1 disable and enable sleep mode respectively.
3.1.7
Device Identification and Revision
There are 2 internal registers that provide device identification and revision, DVID and DREV registers. The 8-
bit content in the DVID register provides device identification. A return value of 0x68 from this register indicates
the device is a XR16V698. The DREV register returns a 8-bit value of 0x01 for revision A, 0x02 for revision B
and so on. This information is very useful to the software driver for identifying which device it is communicating
with and to keep up with revision changes.
3.1.7.1
DVID [7:0] (default 0x68)
Device identification for the type of UART. The Device ID for the V698 is 0x68.
3.1.7.2
DREV [7:0] (default (0x01)
Revision number of the XR16V698. A 0x01 represents "revision-A" with 0x02 for rev-B and so forth.
3.1.8
REGB [7:0] (default 0x00)
REGB[0]: Simultaneous write to all 8 UARTs
Logic 0 = Write to each UART configuration register individually (default).
Logic 1 = Enable simultaneous write to all 8 UART configuration registers. This can be very useful during
device initialization in the power-up and reset routines.
REGB[7:1]: Reserved.
Ch-6
Ch-7
Ch-5 Ch-4 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
Ch-6
Ch-7
Ch-5 Ch-4 Ch-3 Ch-2 Ch-1 Ch-0
Bit-7 Bit-6 Bit-5 Bit-4 Bit-3 Bit-2 Bit-1 Bit-0
SLEEP Register
Individual UART Channel Sleep Enable
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參數(shù)描述
XR16V698IQ-0B-EVB 功能描述:UART 接口集成電路 Supports V698 100 ld QFP, PCI 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
XR16V698IQ100 制造商:EXAR 制造商全稱:EXAR 功能描述:2.25V TO 3.6V HIGH PERFORMANCE OCTAL UART WITH 32-BYTE FIFO
XR16V698IQ100-F 功能描述:UART 接口集成電路 UART 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
XR16V698IQ100TR-F 制造商:Exar Corporation 功能描述:UART 8-CH 32Byte FIFO 2.5V/3.3V 100-Pin PQFP T/R 制造商:Exar Corporation 功能描述:XR16V698IQ100TR-F
XR16V794 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE 2.25V TO 3.6V QUAD UART WITH FRACTIONAL
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