- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄300147 > XC68307FG8V (MOTOROLA INC) 16.67 MHz, MICROCONTROLLER, PQFP100 PDF資料下載
參數(shù)資料
| 型號： | XC68307FG8V |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16.67 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | PLASTIC, QFP-100 |
| 文件頁數(shù)： | 6/35頁 |
| 文件大?。?/td> | 172K |
| 代理商： | XC68307FG8V |
第1頁第2頁第3頁第4頁第5頁當前第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
14
MC68307 TECHNICAL INFORMATION
MOTOROLA
M-BUS INTERFACE MODULE
The M-bus is a two-wire, bidirectional serial bus which provides a simple and efcient means of data exchange
between devices; it is fully compatible with the I2C bus standard. The maximum data rate is limited to 100 kbit/s
at 16.67-MHz system clock speed. The maximum communication length and the number of devices that can be
connected are limited by a maximum bus capacitance of 400 pF. The serial bit clock frequency of the M-bus is
programmable and ranges from 3830 Hz to 757 kHz for a 16.67-MHz internal operating frequency.
The M-bus system is a true multimaster bus including collision detection and arbitration to prevent data corruption
(when two or more masters intend to control the bus simultaneously). The M-bus system uses the SDA and SCL
signals for data transfer. All devices connected to the M-bus interface must have open-drain or open-collector
output; a logic AND function is exercised in both lines with pull-up resistors.
The features of the M-bus include:
Fully compatible with I2C bus standard
Multimaster operation
Software programmable for one of 32 different serial clock frequencies
Software selectable acknowledge bit
Interrupt driven byte-by-byte data transfer
Arbitration-lost driven interrupt with automatic mode switching from master to slave
Calling address identification interrupt
Generate/detect the START or STOP signal
Repeated START signal generation
Generate/recognize the acknowledge bit
Bus busy detection
M-Bus Programming Model
The programming model for the M-bus module is listed in Table 9. The FC (function code) column indicates
whether a register is restricted to supervisor access (S) or programmable to exist in either supervisor or user
space (S/U). The address column contains the offset from the base address (MBASE) contained in the SIM07
MBAR
.
Table 9. M-Bus Module Registers
Address
FC
Register Name
MBASE+$141
S/U
Do not access byte $140
M-bus address register (MADR)
MBASE+$143
S/U
Do not access byte $142 M-bus frequency divider register (MFDR)
MBASE+$145
S/U
Do not access byte $144
M-bus control register (MBCR)
MBASE+$147
S/U
Do not access byte $146
M-bus status register (MBSR)
MBASE+$149
S/U
Do not access byte $148
M-bus data I/O register (MBDR)
相關PDF資料 |
PDF描述 |
|---|---|
| XC912DG128PV8 | 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP112 |
| XC95108SERIES | In-System Programmable CPLD |
| XC9572XL-10CSG48C | High Performance CPLD |
| XC9572XL-10CSG48I | High Performance CPLD |
| XC9572XL-10PCG44C | High Performance CPLD |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| XC68307PU16 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
| XC68307PU16V | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
| XC68307PU8V | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| XC68328PV16V | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microprocessor |
| XC68332FC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microcontroller |
發(fā)布緊急采購，3分鐘左右您將得到回復。