| 数据搜索系统,热门电子元器件搜索 |
|
PIC16F72/ML 数据表(PDF) 47 Page - Microchip Technology |
|
|
|||||||||||||||||||||||||||||
PIC16F72/ML 数据表(HTML) 47 Page - Microchip Technology |
|
47 / 136 page ![]() 2002 Microchip Technology Inc. DS39597B-page 45 PIC16F72 REGISTER 9-2: SSPCON: SYNC SERIAL PORT CONTROL REGISTER (ADDRESS 14h) R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 WCOL SSPOV SSPEN CKP SSPM3 SSPM2 SSPM1 SSPM0 bit 7 bit 0 bit 7 WCOL: Write Collision Detect bit 1 = The SSPBUF register is written while it is still transmitting the previous word (must be cleared in software) 0 = No collision bit 6 SSPOV: Receive Overflow Indicator bit In SPI mode: 1 = A new byte is received while the SSPBUF register is still holding the previous data. In case of overflow, the data in SSPSR is lost. Overflow can only occur in Slave mode. The user must read the SSPBUF, even if only transmitting data, to avoid setting overflow. In Master mode, the overflow bit is not set since each new reception (and transmission) is initiated by writing to the SSPBUF register. 0 = No overflow In I2C mode: 1 = A byte is received while the SSPBUF register is still holding the previous byte. SSPOV is a "don’t care" in Transmit mode. SSPOV must be cleared in software in either mode. 0 = No overflow bit 5 SSPEN: Synchronous Serial Port Enable bit In SPI mode: 1 = Enables serial port and configures SCK, SDO, and SDI as serial port pins 0 = Disables serial port and configures these pins as I/O port pins In I2C mode: 1 = Enables the serial port and configures the SDA and SCL pins as serial port pins 0 = Disables serial port and configures these pins as I/O port pins In both modes, when enabled, these pins must be properly configured as input or output. bit 4 CKP: Clock Polarity Select bit In SPI mode: 1 = IDLE state for clock is a high level (Microwire® default) 0 = IDLE state for clock is a low level (Microwire alternate) In I2C mode: SCK release control 1 = Enable clock 0 = Holds clock low (clock stretch - used to ensure data setup time) bit 3-0 SSPM<3:0>: Synchronous Serial Port Mode Select bits 0000 = SPI Master mode, clock = FOSC/4 0001 = SPI Master mode, clock = FOSC/16 0010 = SPI Master mode, clock = FOSC/64 0011 = SPI Master mode, clock = TMR2 output/2 0100 = SPI Slave mode, clock = SCK pin. SS pin control enabled. 0101 = SPI Slave mode, clock = SCK pin. SS pin control disabled. SS can be used as I/O pin. 0110 =I2C Slave mode, 7-bit address 0111 =I2C Slave mode, 10-bit address 1011 =I2C firmware controlled Master mode (Slave IDLE) 1110 =I2C Slave mode, 7-bit address with START and STOP bit interrupts enabled 1111 =I2C Slave mode, 10-bit address with START and STOP bit interrupts enabled Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ - n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |