- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄16526 > XR16M2752IJ-0B-EB (Exar Corporation)EVAL BOARD FOR M2752-B 44PLCC PDF資料下載
參數(shù)資料
| 型號(hào)： | XR16M2752IJ-0B-EB |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 49/51頁 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR M2752-B 44PLCC |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | * |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁當(dāng)前第49頁第50頁第51頁
XR16M2752
7
REV. 1.0.0
1.62V TO 3.63V HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
2.0
FUNCTIONAL DESCRIPTIONS
2.1
CPU Interface
The CPU interface is 8 data bits wide with 3 address lines and control signals to execute data bus read and
write transactions. The M2752 data interface supports the Intel compatible types of CPUs and it is compatible
to the industry standard 16C550 UART. No clock (oscillator nor external clock) is required to operate a data
bus transaction. Each bus cycle is asynchronous using CS#, IOR# and IOW# signals. Both UART channels
share the same data bus for host operations. The data bus interconnections are shown in Figure 3
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 16). An active high pulse of longer than 40 ns duration will be required to activate the reset
function in the device.
2.3
Device Identification and Revision
The XR16M2752 provides a Device Identification code and a Device Revision code to distinguish the part from
other devices and revisions. To read the identification code from the part, it is required to set the baud rate
generator registers DLL and DLM both to 0x00 (DLD = 0xXX). Now reading the content of the DLM will provide
0x0A for the XR16M2752 and reading the content of DLL will provide the revision of the part; for example, a
reading of 0x01 means revision A.
2.4
Channel A and B Selection
The UART provides the user with the capability to bi-directionally transfer information between an external
CPU and an external serial communication device. A logic 0 on chip select pin (CS#) allows the user to select
the UART and then using the channel select (CHSEL) pin, the user can select channel A or B to configure,
send transmit data and/or unload receive data to/from the UART. Individual channel select functions are shown
in Table 1.
FIGURE 3. XR16L2750 DATA BUS INTERCONNECTIONS
VC C
(O P 2 A # )
DS RA #
CT S A #
RT S A #
DT RA #
RX A
TX A
RIA #
CDA #
(O P2 B# )
DS RB #
CT S B #
RT S B #
DT RB #
RX B
TX B
RIB #
CD B #
GN D
A0
A1
A2
UA RT _ C S #
UA RT _ CHS E L
IO R #
IO W #
D0
D1
D2
D3
D4
D5
D6
D7
A0
A1
A2
CS #
CHS E L
D0
D1
D2
D3
D4
D5
D6
D7
IO R #
IO W #
UA RT
C h an ne l A
UA RT
C h an ne l B
UA RT _ INT B
UA RT _ INT A
IN T B
IN T A
(R XR D YA# )
TXR D YA#
(R XR D YA# )
T X R D YA#
(R XR D YB# )
TXR D YB#
(R XR D YB# )
T X R D YB#
UA RT _ R E S E T
RE S E T
S e ria l In te rfa c e o f
RS -2 3 2 , RS -4 8 5
S e ria l In te rfa c e o f
RS -2 3 2 , RS -4 8 5
27 50 in t
(B A UDO UT B # )
(B A UDO UT A # )
P ins in p a re nthe s e s be c o m e availa b le th ro u g h th e M F # p in . M F # A /B b e com e s R X R D Y # A /B w h en A F R [2:1] = '1 0 '. M F # A /B be c o m e s O P 2 # A /B
w h en A F R [2:1] = '0 0 '. M F # A /B be c o m e s B A U D O U T # A /B w h en A F R [1:0] = '0 1 '.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AQ1055N1S-T | INDUCTOR 5.1NH 460MA 0402 SMD |
| VE-J0F-EZ-S | CONVERTER MOD DC/DC 72V 25W |
| 1-5504970-2 | CA 62.5/125UMLDS SC TO SC |
| H8MMH-4036M | DIP CABLE - HDM40H/AE40M/HDM40H |
| VE-JTF-EZ-S | CONVERTER MOD DC/DC 72V 25W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR16M2752IJ44 | 制造商:EXAR 制造商全稱:EXAR 功能描述:1.62V TO 3.63V HIGH PERFORMANCE DUART WITH 64-BYTE FIFO |
| XR16M2752IJ44-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 |
| XR16M2752IL-0A-EB | 功能描述:界面開發(fā)工具 Eval Board for XR16M2752IL-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 |
| XR16M2752IL-0B-EB | 功能描述:界面開發(fā)工具 Eval Board for XR16M2752IL Series 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 |
| XR16M2752IL32 | 制造商:EXAR 制造商全稱:EXAR 功能描述:1.62V TO 3.63V HIGH PERFORMANCE DUART WITH 64-BYTE FIFO |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。