- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄299943 > ST52514K1 IC MAX 7000 CPLD 128 100-FBGA PDF資料下載
參數(shù)資料
| 型號： | ST52514K1 |
| 英文描述： | IC MAX 7000 CPLD 128 100-FBGA |
| 中文描述： | 8位重癥監(jiān)護(hù)病房，10位ADC。兩個定時器/脈寬調(diào)制。 I2C總線。的SPI。脊髓損傷。提供了8K閃存 |
| 文件頁數(shù)： | 76/106頁 |
| 文件大?。?/td> | 1355K |
| 代理商： | ST52514K1 |
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頁當(dāng)前第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁
71/106
11.5 PWM/Timer output modulation
The PWM/Timer outputs can be used to generate
signal
modulation
for
IR
transmission
in
applications like Remote Control.
This can be achieved by means of the Logic Unit or
the IR Driver. Configuring register 50 (032h)
PWM_LU_CR, T1OUTSEL bits, the T1OUT can
output the signal coming from PWM/Timer 1, Logic
Unit or the IR Driver (see Figure 11.5).
11.5.1 Logic Unit. The Logic Unit allows the
combination of the T0OUT and T1OUT signals in
order to generate digital signals, where one output
is used as a carrier and the other as modulator.
The resulting output goes to T1OUT pin.
By setting the Configuration Register 50 (032h)
PWM_LU_CR it is possible to combine the two
outputs with the logic operators AND, OR NOT,
XOR. The Logic Unit function should be used with
the Simultaneous Start function to correctly
synchronize the two signals.
11.5.2 IR Driver. The IR Driver implements the
digital modulation of the digital carrier, T1OUT
signal coming from the PWM/TIMER 1, and
outputs it on the T1OUT pin. The resulting signal
frequency is in the range 30 kHz - 80 kHz,
according with the Clock frequency and the
programmed Counter and Reload values.
The IR Driver has been built to implement the most
common protocols for Infrared Remote Control,
such as:
s
Pulse Coded Signals
s
Shape Coded Signals
s
Shift Coded Signals
s
RC5
The carrier is generated by the PWM/Timer 1, set
in PWM mode, which generates a square wave
with a period and duty cycle programmed by
means
of
the
PWM1_COUNT
and
PWM1_RELOAD 8-bit register, as explained in the
previous paragraphs.
When the start bit IRSTRT of the Configuration
Register IR_CR1 is set to ‘1’, the IR Driver
generates a PWM signal with a period equal to
IR_PERIOD (bits 6:0 of IR_CR1) times of the
carrier period and duty cycle proportional to
IR_DUTY (bits 6:0 of the IR_CR2 Configuration
Register).
The IRPOL bit (bit 7 of the IR_CR2 register) is used
to define the polarity (i.e. the logical level) of the
PWM signal at the start period: if IRPOL bit is ‘0”
the PWM signal is al low level during the Ton and
it is high during the Toff; vice versa if IRPOL is “1”.
The PWM signal obtained is used as a mask
(logical AND) with the carrier signal, implementing
the digital modulation. The figures below show
some examples of modulation.
By configuring the PWM_LU_CR Configuration
Registers with the IR Driver output on T1OUT, the
IR interrupt is automatically enabled. The interrupt
is
generated
at
the
start
of
the
“symbol”
transmission, i.e. at the beginning of the period of
the PWM modulator signal, to avoid dead times
between two transmissions.
Note: When the IR Interrupt is enabled, the other
PWM/Timer 1 interrupt sources are automatically
disabled
Figure 11.6 Pulse Coding signal modulation
1
0
D1
P0
P1
D0
Symbol “0” :
Symbol “1” :
IR_PERIOD = P0
IR_DUTY
= D0
IRPOL
= ‘1’
{
IR_PERIOD = P1
IR_DUTY
= D1
IRPOL
= ‘1’
{
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ST52514K3 | IC MAX 7000 CPLD 256 100-TQFP |
| ST525 | MAX 7000 CPLD 128 MC 100-FBGA |
| ST527 | IC MAX 7000 CPLD 512 208-PQFP |
| ST531 | IC MAX 7000 CPLD 160 100-TQFP |
| ST532 | MAX II CPLD 2210 LE 324-FBGA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST52514K3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT ICU WITH 10-BIT ADC. TWO TIMERS/PWM. I2C. SPI. SCI. UP TO 8K FLASH |
| ST526PND223MLZ | 制造商:COILCRAFT 制造商全稱:Coilcraft lnc. 功能描述:Coupled Inductors for Critical Applications |
| ST527 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TRANSISTOR | BJT | PNP | 200V V(BR)CEO | 8A I(C) | TO-3 |
| ST-5-28 | 功能描述:XFRMR PWR 115V 14VAC .84A RoHS:是 類別:變壓器 >> 功率 系列:ST 標(biāo)準(zhǔn)包裝:1 系列:260 類型:標(biāo)準(zhǔn) 最大功率:65 VA 主線圈:雙 副線圈:三路，中心抽頭 在某電流時的串聯(lián)輸出電壓:500 VAC @ 85mA，5 VAC @ 2A，6.3 VAC @ 2A 在某電流時的并聯(lián)輸出電壓:- 安裝類型:底座安裝 尺寸/尺寸:102.36mm L x 67.31mm W 高度 - 座高（最大）:66.80mm 端接類型:導(dǎo)線引線 |
| ST5-28 | 制造商:SUPERWORLD 制造商全稱:Superworld Electronics 功能描述:POWER TRANSFORMER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。