- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45047 > M38588GCFP 8-BIT, MROM, 6.25 MHz, MICROCONTROLLER, PDSO42 PDF資料下載
參數(shù)資料
| 型號： | M38588GCFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 6.25 MHz, MICROCONTROLLER, PDSO42 |
| 封裝： | 8.40 X 17.50 MM, 0.80 MM PITCH, PLASTIC, SSOP-42 |
| 文件頁數(shù)： | 22/77頁 |
| 文件大?。?/td> | 824K |
| 代理商： | M38588GCFP |
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頁當前第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
Rev.1.10
Apr 3, 2006
page 29 of 75
REJ03B0139-0110
3858 Group
(6) Programmable waveform generating mode
qMode selection
This mode can be selected by setting “100” to the timer Z1 operat-
ing mode bits (bits 2 to 0) and setting “0” to the timer/event
counter mode switch bit (b7) of the timer Z1 mode register (ad-
dress 002816).
qCount source selection
In high-, or middle-speed mode, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/
128, 1/256, 1/512 or 1/1024 of f(XIN); or f(XCIN) can be selected as
the count source.
In low-speed mode, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, 1/256, 1/
512 or 1/1024 of f(XCIN); or f(XCIN) can be selected as the count
source.
qInterrupt
The interrupt at an underflow is the same as the timer mode’s.
qExplanation of operation
The operation is the same as the timer mode’s. Moreover the
timer outputs the data set in the output level latch (bit 4) of the
timer Z1 mode register (address 002816) from the CNTR2 pin each
time the timer underflows.
Changing the value of the output level latch and the timer latch af-
ter an underflow makes it possible to output an optional waveform
from the CNTR2 pin.
sPrecautions
The double-function port of CNTR2 pin and port P22 is automati-
cally set to the programmable waveform generating port in this
mode.
Figure 26 shows the timing chart of the programmable waveform
generating mode.
(7) Programmable one-shot generating mode
qMode selection
This mode can be selected by setting “101” to the timer Z1 operat-
ing mode bits (bits 2 to 0) and setting “0” to the timer/event
counter mode switch bit (b7) of the timer Z1 mode register (ad-
dress 002816).
qCount source selection
In high-, or middle-speed mode, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/
128, 1/256, 1/512 or 1/1024 of f(XIN); or f(XCIN) can be selected as
the count source.
qInterrupt
The interrupt at an underflow is the same as the timer mode’s.
The trigger to generate one-shot pulse can be selected by the
INT1 active edge selection bit (bit 1) of the interrupt edge selection
register (address 003A16). When it is “0”, the falling edge active is
selected; when it is “1”, the rising edge active is selected.
When the valid edge of the INT1 pin is detected, the INT1 interrupt
request bit (bit 1) of the interrupt request register 1 (address
003C16) is set to “1”.
qExplanation of operation
“H” one-shot pulse; Bit 5 of timer Z1 mode register = “0”
The output level of the CNTR2 pin is initialized to “L” at mode se-
lection. When trigger generation (input signal to INT1 pin) is
detected, “H” is output from the CNTR2 pin. When an underflow
occurs, “L” is output. The “H” one-shot pulse width is set by the
setting value to the timer Z1 register low-order and high-order.
When trigger generating is detected during timer count stop, al-
though “H” is output from the CNTR2 pin, “H” output state contin-
ues because an underflow does not occur.
“L” one-shot pulse; Bit 5 of timer Z1 mode register = “1”
The output level of the CNTR2 pin is initialized to “H” at mode se-
lection. When trigger generation (input signal to INT1 pin) is
detected, “L” is output from the CNTR2 pin. When an underflow
occurs, “H” is output. The “L” one-shot pulse width is set by the
setting value to the timer Z1 low-order and high-order. When trig-
ger generating is detected during timer count stop, although “L” is
output from the CNTR2 pin, “L” output state continues because an
underflow does not occur.
sPrecautions
Set the double-function port of INT1 pin and port P42 to input in
this mode.
Set the double function port of CNTR2 pin and port P22 is automati-
cally set to the programmable one-shot generating port in this mode.
This mode cannot be used in low-speed mode.
If the value of the CNTR2 active edge switch bit is changed during
one-shot generating enabled or generating one-shot pulse, then
the output level from CNTR2 pin changes.
Figure 27 shows the timing chart of the programmable one-shot
generating mode.
sNotes regarding all modes
qTimer Z1 write control
Which write control can be selected by the timer Z1 write control
bit (bit 3) of the timer Z1 mode register (address 002816), writing
data to both the latch and the timer at the same time or writing
data only to the latch.
When the operation “writing data only to the latch” is selected, the
value is set to the timer latch by writing data to the address of timer
Z1 and the timer is updated at next underflow. After reset release, the
operation “writing data to both the latch and the timer at the same
time” is selected, and the value is set to both the latch and the timer
at the same time by writing data to the address of timer Z1.
In the case of writing data only to the latch, if writing data to the
latch and an underflow are performed almost at the same time,
the timer value may become undefined.
qTimer Z1 read control
A read-out of timer value is impossible in pulse period measure-
ment mode and pulse width measurement mode. In the other
modes, a read-out of timer value is possible regardless of count
operating or stopped.
However, a read-out of timer latch value is impossible.
qSwitch of interrupt active edge of CNTR2 and INT1
Each interrupt active edge depends on setting of the CNTR2 ac-
tive edge switch bit and the INT1 active edge selection bit.
qSwitch of count source
When switching the count source by the timer Z1 count source selec-
tion bits, the value of timer count is altered in inconsiderable amount
owing to generating of thin pulses on the count input signals.
Therefore, select the timer count source before setting the value
to the prescaler and the timer.
qUsage of CNTR2 pin as normal I/O port P22
To use the CNTR2 pin as normal I/O port P22, set timer Z1 operat-
ing mode bits (b2, b1, b0) of timer Z1 mode register (address
002816) to “000”.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M38749EFT | 8-BIT, OTPROM, 6.4 MHz, MICROCONTROLLER, PQFP80 |
| M38747M4T | 8-BIT, MROM, 6.4 MHz, MICROCONTROLLER, PQFP80 |
| M38747M6T | 8-BIT, MROM, 6.4 MHz, MICROCONTROLLER, PQFP80 |
| M38747M8T | 8-BIT, MROM, 6.4 MHz, MICROCONTROLLER, PQFP80 |
| M38747MCF | 8-BIT, MROM, 6.4 MHz, MICROCONTROLLER, PQFP80 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M38588GCFP#U0 | 功能描述:IC 740/3858 MCU QZ-ROM 42SSOP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標準包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設(shè)備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR) |
| M38588GCSP#U0 | 功能描述:IC 740/3858 MCU QZ-ROM 42DIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標準包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設(shè)備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR) |
| M3860 | 功能描述:電纜固定件和配件 FLEX LTSCG 500 RoHS:否 制造商:Heyco 類型:Cable Grips, Liquid Tight 材料:Nylon 顏色:Black 安裝方法:Cable 最大光束直徑:11.4 mm 抗拉強度: |
| M3860 BK001 | 制造商:Alpha Wire Company 功能描述:CBL 30COND 14AWG BLK 1000' |
| M3860 BK002 | 制造商:Alpha Wire Company 功能描述:CBL 30COND 14AWG BLK 500' |
發(fā)布緊急采購，3分鐘左右您將得到回復。