- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄361246 > QADCRM Queued Analog-to-Digital Converter Reference Manual PDF資料下載
參數(shù)資料
| 型號(hào)： | QADCRM |
| 英文描述： | Queued Analog-to-Digital Converter Reference Manual |
| 中文描述： | 排隊(duì)模擬到數(shù)字轉(zhuǎn)換器參考手冊(cè) |
| 文件頁(yè)數(shù)： | 21/122頁(yè) |
| 文件大小： | 940K |
| 代理商： | QADCRM |
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)當(dāng)前第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)
QADC
REFERENCE MANUAL
CONFIGURATION AND CONTROL
MOTOROLA
3-1
SECTION 3 CONFIGURATION AND CONTROL
The QADC module communicates with other microcontroller modules via the inter-
module bus (IMB). The QADC bus interface unit (BIU) coordinates IMB activity with
internal QADC bus activity. This section describes the operation of the BIU, IMB read/
write accesses to QADC memory locations, module configuration, and general-pur-
pose I/O operation.
3.1 QADC Bus Interface Unit
The BIU is designed to act as a slave device on the IMB. The BIU has the following
functions: to respond with the appropriate bus cycle termination, and to supply IMB in-
terface timing to all internal module signals.
BIU components consist of IMB buffers, address match and module select logic, inter-
rupt and arbitration logic, the BIU state machine, clock prescaler logic, data bus routing
logic, and the interface to the internal module data bus.
The QADC responds to all IMB operations and signals, allowing byte, word, and long
word addressable read and write operations in any addressable space.
NOTE
Normal accesses to the QADC require two clocks. However, if the
CPU tries to access locations that are also accessible by the QADC
while the QADC is accessing them, the QADC produces wait states.
From one to four CPU wait states may be inserted by the QADC in
the process of reading and writing.
3.2 QADC Bus Accessing
The QADC permits software access to 8-bit, 16-bit words, and 32-bit long words, at
even and odd addresses, however, coherency (ensuring that all samples are taken
consecutively in one scan) is not provided for accesses that require more than one bus
cycle. For example, if a read of two consecutive word locations in a result area are
made, the QADC could change one word in the result area between the bus cycles.
There is no holding register for the second word. Refer to paragraph 7.6.3 in
SECTION
7 DIGITAL CONTROL
for more information on coherency. All read and write accesses
that require more than one 16-bit access to complete occur as two or more indepen-
dent bus cycles. These accesses include misaligned and long word accesses.
NOTE
CPU32 does not support word access or long word access to an odd
address. Both of these are considered misaligned accesses. The
CPU16 supports misaligned and long word accesses.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| QAK2E104JCP | PLASTIC FILM CAPACITORS |
| QAK2E104JTP | PLASTIC FILM CAPACITORS |
| QAK2E104KCP | PLASTIC FILM CAPACITORS |
| QAK2E104KTP | PLASTIC FILM CAPACITORS |
| QAK2E105JCP | PLASTIC FILM CAPACITORS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| QAE100 | 制造商:P-DUKE 制造商全稱:Power Mate Technology Co., LTD 功能描述:QUARTER-BRICK DC-DC CONVERTER 2:1 ULTRA WIDE INPUT RANGE UP TO 108Watts |
| QAE100W | 制造商:P-DUKE 制造商全稱:Power Mate Technology Co., LTD 功能描述:QUARTER-BRICK DC-DC CONVERTER 4:1 ULTRA WIDE INPUT RANGE UP TO 90Watts |
| QAE150 | 制造商:P-DUKE 制造商全稱:Power Mate Technology Co., LTD 功能描述:QUARTER-BRICK DC-DC CONVERTER 2:1 ULTRA WIDE INPUT RANGE UP TO 150Watts |
| QAE150W | 制造商:P-DUKE 制造商全稱:Power Mate Technology Co., LTD 功能描述:QUARTER-BRICK DC-DC CONVERTER 4:1 ULTRA WIDE INPUT RANGE UP TO 132Watts |
| QAEP | 制造商:Omnimount 功能描述:10.6 ~ 21 Inch Adjustable 1.5 Inch NPT Pipe Extension |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。