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MX809J 参数 Datasheet PDF下载

MX809J图片预览
型号: MX809J
PDF下载: 下载PDF文件 查看货源
内容描述: 1200bps的调制解调器MSK [1200bps MSK Modem]
分类和应用: 调制解调器
文件页数/大小: 22 页 / 276 K
品牌: CMLMICRO [ CML MICROCIRCUITS ]
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MSK Modem  
11  
MX809  
Reading  
MSB  
Status Bits  
Received First  
Undefined  
Bit 7  
0
1
“0” or  
“1”  
6
Undefined  
0
1
“0” or  
“1”  
5
RX SYNC Detect  
0
1
SYNC  
4
RX SYNC Detect  
0
1
SYNC  
3
TX Idle  
0
1
Idle  
2
TX Data Ready  
0
1
TX Date Ready  
1
RX Checksum True  
0
1
True  
0
RX Data Ready  
0
1
RX Data Ready  
Table 8: Status Register  
5.8 Interrupt Request  
The conditions that cause interrupts to be output (if enabled by the Control Register) from the MX809 are:  
TX Idle  
TX Data Ready  
RX SYNC Detect  
RX Data Ready  
RX SYNC Detect  
The Status Register should be read to find the cause of the interrupt. Interrupts are cleared by (1) reading the  
Status Register, or (2) changing the state of the RX / TX bit.  
5.9 General Reset  
Upon power-up, the bits in the MX809 Mode register and buffer will be random (either “0” or “1”). The  
General Reset command (01 ) will “reset” all microcircuits in the C-BUS and had the following effect on the  
H
MX809.  
All bits in the Control Register will be set to logic “0”. The Tx Out output will be set to V  
.
BIAS  
Note: The Status register, RX Data Buffer, TX Data Buffer, and SYNC Program register are not affected by  
the General Reset Command.  
1998 MX-COM, Inc.  
www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054  
Doc. # 20480036.004  
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA  
All trademarks and service marks are held by their respective companies.  
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