- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄371076 > MC908QL4V (Motorola, Inc.) Microcontrollers PDF資料下載
參數(shù)資料
| 型號(hào)： | MC908QL4V |
| 廠商： | Motorola, Inc. |
| 英文描述： | Microcontrollers |
| 中文描述： | 微控制器 |
| 文件頁(yè)數(shù)： | 143/222頁(yè) |
| 文件大?。?/td> | 2861K |
| 代理商： | MC908QL4V |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)當(dāng)前第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)第149頁(yè)第150頁(yè)第151頁(yè)第152頁(yè)第153頁(yè)第154頁(yè)第155頁(yè)第156頁(yè)第157頁(yè)第158頁(yè)第159頁(yè)第160頁(yè)第161頁(yè)第162頁(yè)第163頁(yè)第164頁(yè)第165頁(yè)第166頁(yè)第167頁(yè)第168頁(yè)第169頁(yè)第170頁(yè)第171頁(yè)第172頁(yè)第173頁(yè)第174頁(yè)第175頁(yè)第176頁(yè)第177頁(yè)第178頁(yè)第179頁(yè)第180頁(yè)第181頁(yè)第182頁(yè)第183頁(yè)第184頁(yè)第185頁(yè)第186頁(yè)第187頁(yè)第188頁(yè)第189頁(yè)第190頁(yè)第191頁(yè)第192頁(yè)第193頁(yè)第194頁(yè)第195頁(yè)第196頁(yè)第197頁(yè)第198頁(yè)第199頁(yè)第200頁(yè)第201頁(yè)第202頁(yè)第203頁(yè)第204頁(yè)第205頁(yè)第206頁(yè)第207頁(yè)第208頁(yè)第209頁(yè)第210頁(yè)第211頁(yè)第212頁(yè)第213頁(yè)第214頁(yè)第215頁(yè)第216頁(yè)第217頁(yè)第218頁(yè)第219頁(yè)第220頁(yè)第221頁(yè)第222頁(yè)
Registers
MC68HC908QL4 MC68HC908QL3 MC68HC908QL2 Data Sheet, Rev. 4
Freescale Semiconductor
143
high-speed downloads for reprogramming of FLASH memory or diagnostics in a test environment where
radiated emissions requirements are not as stringent. In these situations, the user may choose to run
faster than the 20 kbps limit which is imposed by the LIN specification for EMC reasons. Details of how
to calculate maximum bit rates and operate the SLIC above 20 kbps are detailed in
14.9.14 High-Speed
LIN Operation
. Refer to
14.9.6 SLIC Module Initialization Procedure
for more information on when to set
up this register.
14.8.5 SLIC Bit Time Registers
NOTE
In this subsection, the SLIC bit time registers are collectively referred to as
SLCBT.
In LIN operating mode (BTM = 0), the SLCBT is updated by the SLIC upon reception of a LIN break-synch
combination and provides the number of SLIC clock counts that equal one LIN bit time to the user
software. This value can be used by the software to calculate the clock drift in the oscillator as an offset
to a known count value (based on nominal oscillator frequency and LIN bus speed). The user software
can then trim the oscillator to compensate for clock drift. Refer to
14.9.16 Oscillator Trimming with SLIC
for more information on this procedure. The user cannot read the bit time value from SLCBTH and
SLCBTL any time after the identifier byte is received until the beginning of the next LIN message frame
on the bus. The beginning of this message frame activity will be indicated by SLCACT.
When in byte transfer mode (BTM = 1), the SLCBT must be written by the user to set the length of one
bit at the desired bit rate in SLIC clock counts. The user software must initialize this number prior to
sending or receiving data, based on the input clock selection, prescaler stage choice, and desired bit rate.
This setting is similar to choosing an input capture or output compare value for a timer. The closest even
value must be chosen for this value, as BT0 will be forced to 0 by the SLIC module and any odd value will
always be reduced to the next lowest even integer value. For example, a write of value 51 (0x33) will be
forced to value of 50 and read back as 0x32. A write to both registers is required to update the bit time
value.
NOTE
The SLIC bit time will not be updated until a write of the SLCBTL has
occurred.
Bit 7
6
5
4
3
2
1
Bit 0
Read:
0
0
0
BT12
BT11
BT10
BT9
BT8
Write:
Reset:
0
0
0
0
0
0
0
0
= Unimplemented
Figure 14-8. SLIC Bit Time Register High (SLCBTH)
Bit 7
6
5
4
3
2
1
Bit 0
Read:
BT7
BT6
BT5
BT4
BT3
BT2
BT1
0
Write:
Reset:
0
0
0
0
0
0
0
0
= Unimplemented
Figure 14-9. SLIC Bit Time Register Low (SLCBTL)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC912DG128x | microcontroller unit 16BIT DEVICE |
| MC68HC912DG128A | microcontroller unit 16BIT DEVICE |
| MC912DG128A | microcontroller unit 16BIT DEVICE |
| MC68HC912DT128A | microcontroller unit 16BIT DEVICE |
| MC92052 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC908QL4VDTE | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:M68HC08 Microcontrollers |
| MC908QL4VDWE | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:M68HC08 Microcontrollers |
| MC908QT1 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| MC908QT1A | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| MC908QT1ACDTE | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:M68HC08 Microcontrollers |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。