- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄371046 > MC68C912B32FU8 (MOTOROLA INC) 16-Bit Microcontroller PDF資料下載
參數(shù)資料
| 型號(hào)： | MC68C912B32FU8 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-Bit Microcontroller |
| 中文描述： | 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁數(shù)： | 106/128頁 |
| 文件大小： | 748K |
| 代理商： | MC68C912B32FU8 |
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頁當(dāng)前第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
MOTOROLA
106
MC68HC912B32
MC68HC912B32TS/D
Read and write anytime.
DDDLC[6:0] — Data Direction Port DLC Pin 6 through Pin 0
0 = Configure I/O pin for input only
1 = Configure I/O pin for output
14.5 J1850 Bus Errors
The BDLC detects several types of transmit and receive errors which can occur during the transmission
of a message onto the J1850 bus.
If the BDLC transmits a message containing invalid bits, or framing symbols on non-byte boundaries,
then a transmission error has occurred. When a transmission error is detected, the BDLC will immedi-
ately cease transmitting. The error condition is reflected in the BSVR register. If the interrupt enable bit
(IE) is set, an interrupt request from the BDLC is generated.
CRC Error
— A CRC error is detected when the data bytes and CRC byte of a received message are
processed, and the CRC calculation result is not equal to $C4. The CRC code should detect any single
and 2-bit errors, as well as all 8-bit burst errors, and almost all other types of errors. CRC error flag is
set when a CRC error is detected.
Symbol Error
— A symbol error is detected when an abnormal (invalid) symbol is detected in a mes-
sage being received from the J1850 bus. However, if the BDLC is transmitting when this happens, it
may be treated as a loss of arbitration rather than a transmitter error. Symbol invalid or out of range flag
is set when a symbol error is detected.
Framing Error
— A framing error is detected if an EOD or EOF symbol is detected on a non-byte
boundary from the J1850 bus. Symbol invalid or out of range flag is set when a framing error is detected.
Bus Fault
— If a bus fault occurs, the response of the BDLC will depend upon the type of bus fault.
If the bus is shorted to V
BATT
, the BDLC will wait for the bus to fall to a passive state before it will attempt
to transmit a message. As long as the short remains, the BDLC will never attempt to transmit a message
onto the J1850 bus.
If the bus is shorted to ground, the BDLC will see an idle bus, begin to transmit the message, and then
detect a transmission error, since the short to ground would not allow the bus to be driven to the active
(dominant) state. The BDLC will abort that transmission and wait for the next CPU command to transmit.
In any case, if the bus fault is temporary, as soon as the fault is cleared, the BDLC will resume normal
operation. If the bus fault is permanent, it may result in permanent loss of communication on the J1850
bus.
BREAK
— Any BDLC transmitting at the time a BREAK is detected will treat the BREAK as if a trans-
mission error had occurred, and halt transmission.
If while receiving a message the BDLC detects a BREAK symbol, it will treat the BREAK as a reception
error.
DDRDLC
— Port DLC Data Direction Register
$00FF
Bit 7
6
5
4
3
2
1
Bit 0
0
DDDLC6
DDDLC5
DDDLC4
DDDLC3
DDDLC2
DDDLC1
DDDLC0
RESET:
0
0
0
0
0
0
0
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68B912B32FU8 | 16-Bit Microcontroller |
| MC68C912B32CFU8 | 16-Bit Microcontroller |
| MC68CK338 | Highly Integrated, Low-Power, 32-Bit Microcontroller |
| MC68EC060 | 32-Bit Microprocessors.(32位微處理器) |
| MC68EN360RC25V | QUad Integrated Communications Controller Users Manual |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68CK16Z1 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
| MC68CK16Z1CAG16 | 功能描述:16位微控制器 - MCU 16BIT 1KRAM 32KHZ CRYSTAL RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| MC68CK16Z1CAG16 | 制造商:Freescale Semiconductor 功能描述:Microcontroller |
| MC68CK16Z1CFC16 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
| MC68CK16Z1CPV16 | 功能描述:16位微控制器 - MCU 16 Bit 16MHz RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。