- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45211 > MC68307CFG16 (MOTOROLA INC) 16-BIT, 16.67 MHz, MICROCONTROLLER, PQFP100 PDF資料下載
參數(shù)資料
| 型號(hào)： | MC68307CFG16 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, 16.67 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | PLASTIC, QFP-100 |
| 文件頁(yè)數(shù)： | 127/264頁(yè) |
| 文件大小： | 949K |
| 代理商： | MC68307CFG16 |
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)當(dāng)前第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)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)第223頁(yè)第224頁(yè)第225頁(yè)第226頁(yè)第227頁(yè)第228頁(yè)第229頁(yè)第230頁(yè)第231頁(yè)第232頁(yè)第233頁(yè)第234頁(yè)第235頁(yè)第236頁(yè)第237頁(yè)第238頁(yè)第239頁(yè)第240頁(yè)第241頁(yè)第242頁(yè)第243頁(yè)第244頁(yè)第245頁(yè)第246頁(yè)第247頁(yè)第248頁(yè)第249頁(yè)第250頁(yè)第251頁(yè)第252頁(yè)第253頁(yè)第254頁(yè)第255頁(yè)第256頁(yè)第257頁(yè)第258頁(yè)第259頁(yè)第260頁(yè)第261頁(yè)第262頁(yè)第263頁(yè)第264頁(yè)
Applications Information
MOTOROLA
MC68307 USER’S MANUAL
10-5
10.1.2 EPROM Memory Interface
The BUSW0 signal is used to select either an 8- or 16-bit EPROM mode for boot-up after
reset. In this case BUSW0 is tied low, and a standard, low cost, 8-bit EPROM is used. The
EPROM interface is a straight connection of CS0, address and data. The 8 data lines are
connected on the upper half of the data bus (D15–D8).
CS0 is used to select the EPROM and enable its output for a specified address range. After
reset, the default CS0 programming is for the first 8 Kbytes address range, accessible with
6 wait states. The CS0 registers are usually reprogrammed as one of the first software activ-
ities, to set up the desired address space and wait state options.
Some processor systems need a read/write control signal to the EPROM output enable to
avoid data contention in the event of an accidental write to ROM. The MC68307 can avoid
this by programming CS0 to assert for read accesses only.
Note that with BUSW0 pulled high, the 16-bit EPROM interface using two 8-bit EPROMs is
equally simple. Both EPROMs are chip selected by CS0. The upper (even) byte EPROM is
output enabled by UDS, while the lower (odd) byte EPROM is output enabled by LDS. The
address lines used by two 27C010’s would be A17–A1.
10.1.3 RAM Memory Interface
The 16-bit RAM interface is controlled using CS1, UDS, LDS, R/W, address and data. CS1
is used to select RAM for read/write accesses within a programmed address range. It must
be software configured before any RAM accesses are possible. For example, stacking oper-
ations such as interrupt or exception handling, and subroutine branches are not possible
until CS1 is configured. In this instance, CS1 should be programmed as a 16-bit port, with
suitable address range, address space and wait states.
The UDS/LDS signals are used to qualify accesses to the upper/lower byte of the selected
RAM data word. The R/W dictates whether a RAM read or write takes place.
It simplifies the interface to output enable the RAMs each time they are chip selected.
Although, when using alternative RAMs, care should be taken that the RAMs do not drive
data out when output enabled during a write. Almost all RAMs including the MCM6206 can
do this.
Note that for an 8-bit RAM interface using an MC6206, CS1 could be connected to the chip
enable, UDS to the output enable, R/W to the read/write, A14–A0 to the address lines and
D15-D8 to the data bus. After reset, CS1 must be software configured for 8-bit mode.
10.1.4 RS232 UART Port
The MC68307’s UART signals (TxD, RxD, RTS, CTS) are connected to an MC145407
RS232 level driver. On the RS232 side, the UART signals are made available to a standard
RS232 connector. This creates a communication channel between the user and system. For
instance, a terminal (or terminal emulator) could control the system via a user preferred
debug monitor coded into the EPROM; this is an invaluable debug feature during the devel-
opment stages of a system design.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68307PU16 | 16-BIT, 16.67 MHz, MICROCONTROLLER, PQFP100 |
| MC68307PU16V | 16-BIT, 16.67 MHz, MICROCONTROLLER, PQFP100 |
| MC68307FG16 | 16-BIT, 16.67 MHz, MICROCONTROLLER, PQFP100 |
| MC68322FT16 | 16-BIT, 16.667 MHz, RISC PROCESSOR, PQFP160 |
| MC68331CFC20B1 | 32-BIT, 20 MHz, MICROCONTROLLER, PQFP132 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68307UM | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Technical Summary Integrated Multiple-Bus Processor |
| MC68307V | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Technical Summary Integrated Multiple-Bus Processor |
| MC68322 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Integrated Printer Processor |
| MC68322AD | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Integrated Printer Processor |
| MC68322FT20 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。