MX809J データシートの表示（PDF） - MX-COM Inc
部品番号
コンポーネント説明
メーカー
MX809J Datasheet PDF : 22 Pages
| |||
MSK Modem
Section
2
Contents
MX809
Page
1 Block Diagram................................................................................................................ 3
2 Signal List....................................................................................................................... 4
3 External Components.................................................................................................... 6
4 General Description....................................................................................................... 7
5 Controlling Protocol ...................................................................................................... 7
5.1 Address/Commands ............................................................................................................ 7
5.2 Address Select .................................................................................................................... 8
5.3 Write to Control Register ..................................................................................................... 9
5.4 RX Data buffer -- “Read RX Data Buffer” ............................................................................ 9
5.5 TX Data Buffer -- “Write to TX Data Buffer” ....................................................................... 10
5.6 SYNC Program -- “Write to SYNC Program” ..................................................................... 10
5.7 Read Status Register ........................................................................................................ 10
5.8 Interrupt Request............................................................................................................... 11
5.9 General Reset ................................................................................................................... 11
6 Application ................................................................................................................... 12
6.1 Checksum Generation and Checking ................................................................................ 12
6.1.1 Generation .............................................................................................................................. 12
6.1.2 Checking ................................................................................................................................. 12
6.2 Modem Performance ......................................................................................................... 12
6.3 Modem Timing Information................................................................................................ 13
6.4 TX Timing .......................................................................................................................... 14
6.4.1 TX More Than One Message, SYNC Before Every Message, TX Checksum Enabled ......... 14
6.4.2 TX More Than One Message, TX Checksum Not Enabled. ................................................... 14
6.4.3 TX One Message, TX Checksum Enabled ............................................................................. 15
6.4.4 TX One Message, TX Checksum Not Enabled....................................................................... 15
6.5 RX Timing.......................................................................................................................... 16
6.5.1
6.5.2
RX SYNC / SYNC Required Before Every Message, Rx Checksum Not Enabled ................. 16
RX Additional Data Follows Initial Address (6 Data & 2 Checksum Bytes) Data, RX checksum
Enabled................................................................................................................................... 16
7 Performance Specifications........................................................................................ 17
7.1 Electrical Specifications..................................................................................................... 17
7.1.1 Absolute Maximum Limits ....................................................................................................... 17
7.1.2 Operating Limits...................................................................................................................... 17
7.1.3 Operating Characteristics ....................................................................................................... 18
7.1.4 Timing ..................................................................................................................................... 20
7.2 Packages........................................................................................................................... 21
MXCOM, Inc. reserves the right to change specifications at any time without notice.
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.
Share Link: 