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參數(shù)資料
| 型號(hào)： | XR16M564DIV-0B-EVB |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 3/55頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVAL BRD FOR XR16M654D-B 64LQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | * |
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XR16M564/564D
11
REV. 1.0.0
1.62V TO 3.63V QUAD UART WITH 32-BYTE FIFO
2.2
Device Reset
The RESET input resets the internal registers and the serial interface outputs in both channels to their default
state (see Table 17). An active high pulse of longer than 40 ns duration will be required to activate the reset
function in the device. Following a power-on reset or an external reset, the M564 is software compatible with
previous generation of UARTs, 16C454 and 16C554.
2.3
Channel Selection
The UART provides the user with the capability to bi-directionally transfer information between an external
CPU and an external serial communication device. During Intel Bus Mode (16/68# pin is connected to VCC), a
LOW on chip select pins, CSA#, CSB#, CSC# or CSD# allows the user to select UART channel A, B, C or D to
configure, send transmit data and/or unload receive data to/from the UART. Selecting all four UARTs can be
useful during power up initialization to write to the same internal registers, but do not attempt to read from all
four uarts simultaneously. Individual channel select functions are shown in Table 1.
During Motorola Bus Mode (16/68# pin is connected to GND), the package interface pins are configured for
connection with Motorola, and other popular microprocessor bus types. In this mode the M564 decodes two
additional addresses, A3 and A4, to select one of the four UART ports. The A3 and A4 address decode
function is used only when in the Motorola Bus Mode. See Table 2.
TABLE 1: CHANNEL A-D SELECT IN 16 MODE
CSA#
CSB#
CSC#
CSD#
FUNCTION
1
UART de-selected
0
1
Channel A selected
1
0
1
Channel B selected
1
0
1
Channel C selected
1
0
Channel D selected
0
Channels A-D selected
TABLE 2: CHANNEL A-D SELECT IN 68 MODE
CS#
A4
A3
FUNCTION
1
X
UART de-selected
0
Channel A selected
0
1
Channel B selected
0
1
0
Channel C selected
0
1
Channel D selected
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR16M564DIV64 | 制造商:EXAR 制造商全稱:EXAR 功能描述:1.62V TO 3.63V QUAD UART WITH 32-BYTE FIFO |
| XR16M564DIV64-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 |
| XR16M564IJ-0A-EVB | 功能描述:界面開發(fā)工具 Eval Board for XR16M564IJ-0A RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XR16M564IJ-0B-EVB | 功能描述:界面開發(fā)工具 Eval Board for XR16M564IJ-0B RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XR16M564IJ68 | 制造商:EXAR 制造商全稱:EXAR 功能描述:1.62V TO 3.63V QUAD UART WITH 32-BYTE FIFO |
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