- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69026 > MC68HC05JB3JDW (MOTOROLA INC) 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PDSO28 PDF資料下載
參數(shù)資料
| 型號(hào)： | MC68HC05JB3JDW |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PDSO28 |
| 封裝： | SOIC-28 |
| 文件頁(yè)數(shù)： | 103/148頁(yè) |
| 文件大?。?/td> | 1600K |
| 代理商： | MC68HC05JB3JDW |
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)當(dāng)前第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)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)
GENERAL RELEASE SPECIFICATION
November 5, 1998
MOTOROLA
16-BIT TIMER
MC68HC05JB3
9-2
REV 1
The basis of the 16-bit Timer is a 16-bit free-running counter which increases in
count with each internal bus clock cycle. The counter is the timing reference for
the input capture and output compare functions. The input capture and output
compare functions provide a means to latch the times at which external events
occur, to measure input waveforms, and to generate output waveforms and timing
delays. Software can read the value in the 16-bit free-running counter at any time
without affect the counter sequence.
Because of the 16-bit timer architecture, the I/O registers for the input capture and
output compare functions are pairs of 8-bit registers. Each register pair contains
the high and low byte of that function. Generally, accessing the low byte of a spe-
cic timer function allows full control of that function; however, an access of the
high byte inhibits that specic timer function until the low byte is also accessed.
Because the counter is 16 bits long and preceded by a xed divide-by-four pres-
caler, the counter rolls over every 262,144 internal clock cycles. Timer resolution
with a 4MHz crystal oscillator is 2 microsecond/count.
The interrupt capability, the input capture edge, and the output compare state are
controlled by the timer control register (TCR) located at $0012 and the status of
the interrupt ags can be read from the timer status register (TSR) located at
$0013.
9.1
TIMER REGISTERS (TMRH, TMRL)
The functional block diagram of the 16-bit free-running timer counter and timer
registers is shown in Figure 9-2. The timer registers include a transparent buffer
latch on the LSB of the 16-bit timer counter.
Figure 9-2. Programmable Timer Counter Block Diagram
T
OIE
TMRH ($0018)
TMR LSB
16-BIT COUNTER
÷ 4
INTERNAL
(fOSC ÷ 2)
TIMER CONTROL REG.
TIMER
REQUEST
OVERFLOW (TOF)
RESET
CLOCK
INTERRUPT
TMRL ($0019)
TO
F
TIMER STATUS REG.
$0012
$0013
INTERNAL
($FFFC)
DATA
READ
TMRH
READ
TMRL
READ
LATCH
BUS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC05JB3JP | 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PDIP20 |
| MC68HC05K3CSD | 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDSO20 |
| MC68HC05K3P | 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDIP16 |
| MC68HC05L25PB | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP52 |
| MC68HC05LJ5P | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC05JJ6 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification Microcontrollers |
| MC68HC05JJ6CDW | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification Microcontrollers |
| MC68HC05JJ6CDWE | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification Microcontrollers |
| MC68HC05JJ6CP | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification Microcontrollers |
| MC68HC05JJ6CPE | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification Microcontrollers |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。