- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377931 > MB90520B (Fujitsu Limited) 16-bit Proprietary Microcontroller PDF資料下載
參數(shù)資料
| 型號： | MB90520B |
| 廠商： | Fujitsu Limited |
| 英文描述： | 16-bit Proprietary Microcontroller |
| 中文描述： | 16位微控制器專有 |
| 文件頁數(shù)： | 69/99頁 |
| 文件大?。?/td> | 978K |
| 代理商： | MB90520B |
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頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁當(dāng)前第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁
MB90520A/520B Series
69
17. Communications Prescaler
Supplies the clock to the dedicated baud rate generator used by the UART (SCI) and extended I/O serial
interfaces.
By dividing the machine clock to produce the clock supply to the dedicated baud rate generator, the baud rate
can be specified independently of the machine clock speed.
The communications prescaler can divide the machine clock frequency
φ
by the following seven ratios to
generate the clock supply to the dedicated baud rate generator and extended I/O serial interface :
φ
/2,
φ
/3,
φ
/4,
φ
/5,
φ
/6,
φ
/7,
φ
/8
Communications prescaler functions
Note : As the same output from the communications prescaler is supplied to both the UART (SCI) and the extended
I/O serial interface, the transfer clock speed settings must be revised if the communications prescaler settings
are changed.
Block diagram
Function
Clock supply
Dedicated baud rate generator for the UART (SCI) and the extended I/O serial
interface. However, the same clock is supplied to both peripherals.
φ
/2,
φ
/3,
φ
/4,
φ
/5,
φ
/6,
φ
/7,
φ
/8 (
φ
: Machine clock frequency)
None
Not supported by the extended intelligent I/O service (EI
2
OS) .
Divided clock frequency
Interrupts
EI
2
OS support
MD
DIV3 DIV2 DIV1
DIV0
φ
/2
φ
/3
φ
/4
φ
/5
φ
/6
φ
/7
φ
/8
φ
SMCS:SMD2
～
SMD0
=
000
B
～
100
B
SMR:CS2
～
CS0
=
000
B
～
100
B
UART
CDCR
Extended serial I/O
Communications prescaler
φ
: Undefined
: Machine clock frequency
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB90522A | 16-bit Proprietary Microcontroller |
| MB90522APFF | 16-bit Proprietary Microcontroller |
| MB90522APFV | 16-bit Proprietary Microcontroller |
| MB90522B | 16-bit Proprietary Microcontroller |
| MB90522BPFF | 16-bit Proprietary Microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB90522 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90522A | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90522APFF | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90522APFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90522B | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。