參數(shù)資料
型號: PIC16LF1824-E/SL
廠商: Microchip Technology
文件頁數(shù): 19/101頁
文件大?。?/td> 0K
描述: IC MCU 8BIT 7KB FLASH 14SOIC
標(biāo)準(zhǔn)包裝: 57
系列: PIC® XLP™ mTouch™ 16F
核心處理器: PIC
芯體尺寸: 8-位
速度: 32MHz
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): 11
程序存儲器容量: 7KB(4K x 14)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 256 x 8
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 3.6 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 ~ 125°C
封裝/外殼: 14-SOIC(0.154",3.90mm 寬)
包裝: 管件
165
2552K–AVR–04/11
ATmega329/3290/649/6490
Figure 18-4. SPI Transfer Format with CPHA = 1
18.5
Register Description
18.5.1
SPCR – SPI Control Register
Bit 7 – SPIE: SPI Interrupt Enable
This bit causes the SPI interrupt to be executed if SPIF bit in the SPSR Register is set and the if
the Global Interrupt Enable bit in SREG is set.
Bit 6 – SPE: SPI Enable
When the SPE bit is written to one, the SPI is enabled. This bit must be set to enable any SPI
operations.
Bit 5 – DORD: Data Order
When the DORD bit is written to one, the LSB of the data word is transmitted first.
When the DORD bit is written to zero, the MSB of the data word is transmitted first.
Bit 4 – MSTR: Master/Slave Select
This bit selects Master SPI mode when written to one, and Slave SPI mode when written logic
zero. If SS is configured as an input and is driven low while MSTR is set, MSTR will be cleared,
and SPIF in SPSR will become set. The user will then have to set MSTR to re-enable SPI Mas-
ter mode.
SCK (CPOL = 0)
mode 1
SAMPLE I
MOSI/MISO
CHANGE 0
MOSI PIN
CHANGE 0
MISO PIN
SCK (CPOL = 1)
mode 3
SS
MSB
LSB
Bit 6
Bit 1
Bit 5
Bit 2
Bit 4
Bit 3
Bit 4
Bit 2
Bit 5
Bit 1
Bit 6
LSB
MSB
MSB first (DORD = 0)
LSB first (DORD = 1)
Bit
765
4321
0
SPIE
SPE
DORD
MSTR
CPOL
CPHA
SPR1
SPR0
SPCR
Read/Write
R/W
Initial Value
000
0000
0
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