- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98144 > ST72141K2B3/XXX (STMICROELECTRONICS) 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP32 PDF資料下載
參數(shù)資料
| 型號： | ST72141K2B3/XXX |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP32 |
| 封裝： | 0.400 INCH, PLASTIC, SDIP-32 |
| 文件頁數(shù)： | 6/133頁 |
| 文件大?。?/td> | 2615K |
| 代理商： | ST72141K2B3/XXX |
第1頁第2頁第3頁第4頁第5頁當(dāng)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頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁
Obsolete
Product(s)
- Obsolete
Product(s)
ST72141K2
103/133
SERIAL PERIPHERAL INTERFACE (Cont’d)
8.4.4.5 Master Mode Fault
Master mode fault occurs when the master device
has its SS pin pulled low, then the MODF bit is set.
Master mode fault affects the SPI peripheral in the
following ways:
– The MODF bit is set and an SPI interrupt is
generated if the SPIE bit is set.
– The SPE bit is reset. This blocks all output
from the device and disables the SPI periph-
eral.
– The MSTR bit is reset, thus forcing the device
into slave mode.
Clearing the MODF bit is done through a software
sequence:
1. A read or write access to the SR register while
the MODF bit is set.
2. A write to the CR register.
Notes: To avoid any multiple slave conflicts in the
case of a system comprising several MCUs, the
SS pin must be pulled high during the clearing se-
quence of the MODF bit. The SPE and MSTR bits
may be restored to their original state during or af-
ter this clearing sequence.
Hardware does not allow the user to set the SPE
and MSTR bits while the MODF bit is set except in
the MODF bit clearing sequence.
In a slave device the MODF bit can not be set, but
in a multi master configuration the device can be in
slave mode with this MODF bit set.
The MODF bit indicates that there might have
been a multi-master conflict for system control and
allows a proper exit from system operation to a re-
set or default system state using an interrupt rou-
tine.
8.4.4.6 Overrun Condition
An overrun condition occurs when the master de-
vice has sent several data bytes and the slave de-
vice has not cleared the SPIF bit issuing from the
previous data byte transmitted.
In this case, the receiver buffer contains the byte
sent after the SPIF bit was last cleared. A read to
the DR register returns this byte. All other bytes
are lost.
This condition is not detected by the SPI peripher-
al.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ST72311N4T6/XXX | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP64 |
| ST72311J2B6/XXX | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42 |
| ST72311N2T3/XXX | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP64 |
| ST72321BAR7T6 | MICROCONTROLLER, QFP64 |
| ST72321BR7T3 | MICROCONTROLLER, QFP64 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST72141K2B6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH ELECTRIC-MOTOR CONTROL, ADC, 16-BIT TIMERS, SPI INTERFACE |
| ST72141K2M1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH ELECTRIC-MOTOR CONTROL, ADC, 16-BIT TIMERS, SPI INTERFACE |
| ST72141K2M3 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH ELECTRIC-MOTOR CONTROL, ADC, 16-BIT TIMERS, SPI INTERFACE |
| ST72141K2M3/XXX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| ST72141K2M6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH ELECTRIC-MOTOR CONTROL, ADC, 16-BIT TIMERS, SPI INTERFACE |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。