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參數(shù)資料
| 型號： | PIC18F45J11-I/ML |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 31/228頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC PIC MCU FLASH 32K 2V 44-QFN |
| 產(chǎn)品培訓(xùn)模塊： | XLP Deep Sleep Mode PIC18 J Series MCU Overview 8-bit PIC® Microcontroller Portfolio |
| 標(biāo)準(zhǔn)包裝： | 45 |
| 系列： | PIC® XLP™ 18F |
| 核心處理器： | PIC |
| 芯體尺寸： | 8-位 |
| 速度： | 48MHz |
| 連通性： | I²C，SPI，UART/USART |
| 外圍設(shè)備： | 欠壓檢測/復(fù)位，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 34 |
| 程序存儲器容量： | 32KB（16K x 16） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 3.8K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.15 V ~ 3.6 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 13x10b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 44-VQFN 裸露焊盤 |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 657 (CN2011-ZH PDF) |
| 配用： | AC164322-ND - MODULE SOCKET MPLAB PM3 28/44QFN |
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dsPIC30F3014/4013
DS70138G-page 126
2010 Microchip Technology Inc.
18.3.8
SAMPLE CLOCK EDGE
CONTROL BIT
The sample clock edge (CSCKE) control bit determines
the sampling edge for the CSCK signal. If the CSCK bit
is cleared (default), data is sampled on the falling edge
of the CSCK signal. The AC-Link protocols and most
multichannel formats require that data be sampled on
the falling edge of the CSCK signal. If the CSCK bit is
set, data is sampled on the rising edge of CSCK. The
I2S protocol requires that data be sampled on the rising
edge of the CSCK signal.
18.3.9
DATA JUSTIFICATION
CONTROL BIT
In most applications, the data transfer begins one
CSCK cycle after the COFS signal is sampled active.
This is the default configuration of the DCI module. An
alternate data alignment can be selected by setting the
DJST control bit in the DCICON1 SFR. When DJST = 1,
data transfers begin during the same CSCK cycle when
the COFS signal is sampled active.
18.3.10
TRANSMIT SLOT ENABLE BITS
The TSCON SFR has control bits that are used to
enable up to 16 time slots for transmission. These con-
trol bits are the TSE<15:0> bits. The size of each time
slot is determined by the WS<3:0> word-size selection
bits and can vary up to 16 bits.
If a transmit time slot is enabled via one of the TSE bits
(TSEx = 1), the contents of the current transmit shadow
buffer location is loaded into the CSDO Shift register
and the DCI buffer control unit is incremented to point
to the next location.
During an unused transmit time slot, the CSDO pin
drives ‘0’s or is tri-stated during all disabled time slots
depending on the state of the CSDOM bit in the
DCICON1 SFR.
The data frame size in bits is determined by the chosen
data word size and the number of data word elements
in the frame. If the chosen frame size has less than
16 elements, the additional slot enable bits have no
effect.
Each transmit data word is written to the 16-bit transmit
buffer as left justified data. If the selected word size is
less than 16 bits, then the LSbs of the transmit buffer
memory have no effect on the transmitted data. The
user should write ‘0’s to the unused LSbs of each
transmit buffer location.
18.3.11
RECEIVE SLOT ENABLE BITS
The RSCON SFR contains control bits that are used to
enable up to 16 time slots for reception. These control
bits are the RSE<15:0> bits. The size of each receive
time slot is determined by the WS<3:0> word-size
selection bits and can vary from 1 to 16 bits.
If a receive time slot is enabled via one of the RSE bits
(RSEx = 1), the shift register contents are written to the
current DCI receive shadow buffer location and the buf-
fer control unit is incremented to point to the next buffer
location.
Data is not packed in the receive memory buffer loca-
tions if the selected word size is less than 16 bits. Each
received slot data word is stored in a separate 16-bit
buffer location. Data is always stored in a left justified
format in the receive memory buffer.
18.3.12
SLOT ENABLE BITS OPERATION
WITH FRAME SYNC
The TSE and RSE control bits operate in concert with
the DCI Frame Sync generator. In the Master mode, a
COFS signal is generated whenever the Frame Sync
generator is reset. In the Slave mode, the Frame Sync
generator is reset whenever a COFS pulse is received.
The TSE and RSE control bits allow up to 16 consecu-
tive time slots to be enabled for transmit or receive.
After the last enabled time slot has been transmitted/
received, the DCI stops buffering data until the next
occurring COFS pulse.
18.3.13
SYNCHRONOUS DATA
TRANSFERS
The DCI buffer control unit is incremented by one word
location whenever a given time slot has been enabled
for transmission or reception. In most cases, data input
and output transfers are synchronized, which means
that a data sample is received for a given channel at the
same time a data sample is transmitted. Therefore, the
transmit and receive buffers are filled with equal
amounts of data when a DCI interrupt is generated.
In some cases, the amount of data transmitted and
received during a data frame may not be equal. As an
example, assume a two-word data frame is used.
Furthermore, assume that data is only received during
slot #0 but is transmitted during slot #0 and slot #1. In
this case, the buffer control unit counter would be
incremented twice during a data frame but only one
receive register location would be filled with data.
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| PIC18F45J11T-I/ML | 功能描述:8位微控制器 -MCU 32KB Flash 4KBRAM 12MIPS nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC18F45J11T-I/PT | 功能描述:8位微控制器 -MCU 32KB Flash 4KBRAM 12MIPS nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC18F45J50-I/ML | 功能描述:8位微控制器 -MCU Full Spd USB 32KB 4KBRAM nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC18F45J50-I/PT | 功能描述:8位微控制器 -MCU Full Spd USB 32KB 4KBRAM nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| PIC18F45J50T-I/ML | 功能描述:8位微控制器 -MCU Full Spd USB 32KB 4KBRAM nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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