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參數(shù)資料
| 型號： | DSPIC30F6013T-20I/PF |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 3/228頁 |
| 文件大小： | 0K |
| 描述： | IC DSPIC MCU/DSP 132K 80TQFP |
| 標(biāo)準(zhǔn)包裝： | 1,200 |
| 系列： | dsPIC™ 30F |
| 核心處理器： | dsPIC |
| 芯體尺寸： | 16-位 |
| 速度： | 20 MIPS |
| 連通性： | CAN，I²C，SPI，UART/USART |
| 外圍設(shè)備： | 欠壓檢測/復(fù)位，LVD，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 68 |
| 程序存儲器容量： | 132KB（44K x 24） |
| 程序存儲器類型： | 閃存 |
| EEPROM 大?。?/td> | 2K x 8 |
| RAM 容量： | 6K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.5 V ~ 5.5 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 16x12b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 80-TQFP |
| 包裝： | 帶卷 (TR) |
| 配用： | DM300024-ND - KIT DEMO DSPICDEM 1.1 AC164314-ND - MODULE SKT FOR PM3 80PF |
| 其它名稱： | DSPIC30F6013T20IP |
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dsPIC30F6011/6012/6013/6014
DS70117F-page 98
2006 Microchip Technology Inc.
15.4.2
10-BIT MODE SLAVE RECEPTION
Once addressed, the master can generate a Repeated
Start, reset the high byte of the address and set the
R_W bit without generating a Stop bit, thus initiating a
slave transmit operation.
15.5
Automatic Clock Stretch
In the Slave modes, the module can synchronize buffer
reads and write to the master device by clock stretching.
15.5.1
TRANSMIT CLOCK STRETCHING
Both 10-bit and 7-bit Transmit modes implement clock
stretching by asserting the SCLREL bit after the falling
edge of the ninth clock, if the TBF bit is cleared, indicat-
ing the buffer is empty.
In Slave Transmit modes, clock stretching is always
performed irrespective of the STREN bit.
Clock synchronization takes place following the ninth
clock of the transmit sequence. If the device samples
an ACK on the falling edge of the ninth clock and if the
TBF bit is still clear, then the SCLREL bit is automati-
cally cleared. The SCLREL being cleared to ‘0’ will
assert the SCL line low. The user’s ISR must set the
SCLREL bit before transmission is allowed to continue.
By holding the SCL line low, the user has time to ser-
vice the ISR and load the contents of the I2CTRN
before the master device can initiate another transmit
sequence.
15.5.2
RECEIVE CLOCK STRETCHING
The STREN bit in the I2CCON register can be used to
enable clock stretching in Slave Receive mode. When
the STREN bit is set, the SCL pin will be held low at the
end of each data receive sequence.
15.5.3
CLOCK STRETCHING DURING
7-BIT ADDRESSING (STREN = 1)
When the STREN bit is set in Slave Receive mode, the
SCL line is held low when the buffer register is full. The
method for stretching the SCL output is the same for
both 7 and 10-bit addressing modes.
Clock stretching takes place following the ninth clock of
the receive sequence. On the falling edge of the ninth
clock at the end of the ACK sequence, if the RBF bit is
set, the SCLREL bit is automatically cleared, forcing
the SCL output to be held low. The user’s ISR must set
the SCLREL bit before reception is allowed to continue.
By holding the SCL line low, the user has time to ser-
vice the ISR and read the contents of the I2CRCV
before the master device can initiate another receive
sequence. This will prevent buffer overruns from
occurring.
15.5.4
CLOCK STRETCHING DURING
10-BIT ADDRESSING (STREN = 1)
Clock stretching takes place automatically during the
addressing sequence. Because this module has a
register for the entire address, it is not necessary for
the protocol to wait for the address to be updated.
After the address phase is complete, clock stretching
will occur on each data receive or transmit sequence as
was described earlier.
15.6
Software Controlled Clock
Stretching (STREN = 1)
When the STREN bit is ‘1’, the SCLREL bit may be
cleared by software to allow software to control the
clock stretching. The logic will synchronize writes to the
SCLREL bit with the SCL clock. Clearing the SCLREL
bit will not assert the SCL output until the module
detects a falling edge on the SCL output and SCL is
sampled low. If the SCLREL bit is cleared by the user
while the SCL line has been sampled low, the SCL out-
put will be asserted (held low). The SCL output will
remain low until the SCLREL bit is set, and all other
devices on the I2C bus have de-asserted SCL. This
ensures that a write to the SCLREL bit will not violate
the minimum high time requirement for SCL.
If the STREN bit is ‘0’, a software write to the SCLREL
bit will be disregarded and have no effect on the
SCLREL bit.
15.7
Interrupts
The I2C module generates two interrupt flags, MI2CIF
(I2C Master Interrupt Flag) and SI2CIF (I2C Slave Inter-
rupt Flag). The MI2CIF interrupt flag is activated on
completion of a master message event. The SI2CIF
interrupt flag is activated on detection of a message
directed to the slave.
Note 1: If the user loads the contents of I2CTRN,
setting the TBF bit before the falling edge
of the ninth clock, the SCLREL bit will not
be cleared and clock stretching will not
occur.
2: The SCLREL bit can be set in software,
regardless of the state of the TBF bit.
Note 1: If the user reads the contents of the
I2CRCV, clearing the RBF bit before the
falling edge of the ninth clock, the
SCLREL bit will not be cleared and clock
stretching will not occur.
2: The SCLREL bit can be set in software
regardless of the state of the RBF bit. The
user should be careful to clear the RBF bit
in the ISR before the next receive
sequence in order to prevent an overflow
condition.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| DSPIC30F6013T-30I/PF | 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 30MHz 132KB Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| DSPIC30F6014-20E/PF | 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 30MHz 132KB Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| DSPIC30F6014-20I/P | 制造商:Microchip Technology Inc 功能描述:MCU - Rail/Tube |
| DSPIC30F6014-20I/PF | 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 20MHz 144KB Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| DSPIC30F6014-20I/PF | 制造商:Microchip Technology Inc 功能描述:16BIT 20MIPS DSPIC SMD 30F6014 |
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