PIC12LF1501 datasheet(204/352 Pages) MICROCHIP

204 / 352 page

PIC16(L)F1503

DS40001607D-page 204

 2011-2015 Microchip Technology Inc.

SSPxCON1: SSP CONTROL REGISTER 1

R/C/HS-0/0

R/W-0/0

WCOL

SSPOV(1)

SSPEN

CKP

SSPM<3:0>

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

u = Bit is unchanged

x = Bit is unknown

-n/n = Value at POR and BOR/Value at all other Resets

‘1’ = Bit is set

‘0’ = Bit is cleared

HS = Bit is set by hardware

C = User cleared

bit 7

WCOL:

Write Collision Detect bit

Master mode:

= A write to the SSPxBUF register was attempted while the I2C conditions were not valid for a transmission to be started

= No collision

Slave mode:

= The SSPxBUF register is written while it is still transmitting the previous word (must be cleared in software)

= No collision

bit 6

SSPOV:

Receive Overflow Indicator bit(1)

In SPI mode:

= A new byte is received while the SSPxBUF register is still holding the previous data. In case of overflow, the data in SSPxSR is lost.

Overflow can only occur in Slave mode. In Slave mode, the user must read the SSPxBUF, 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

SSPxBUF register (must be cleared in software).

= No overflow

In I2C mode:

= A byte is received while the SSPxBUF register is still holding the previous byte. SSPOV is a “don’t care” in Transmit mode

(must be cleared in software).

= No overflow

bit 5

SSPEN:

Synchronous Serial Port Enable bit

In both modes, when enabled, these pins must be properly configured as input or output

In SPI mode:

= Enables serial port and configures SCKx, SDOx, SDIx and SSx as the source of the serial port pins(2)

= Disables serial port and configures these pins as I/O port pins

In I2C mode:

= Enables the serial port and configures the SDAx and SCLx pins as the source of the serial port pins(3)

= Disables serial port and configures these pins as I/O port pins

bit 4

CKP:

Clock Polarity Select bit

In SPI mode:

= Idle state for clock is a high level

= Idle state for clock is a low level

In I2C Slave mode:

SCLx release control

= Enable clock

= Holds clock low (clock stretch). (Used to ensure data setup time.)

In I2C Master mode:

Unused in this mode

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 = T2_match/2

0100

= SPI Slave mode, clock = SCKx pin, SS pin control enabled

0101

= SPI Slave mode, clock = SCKx pin, SS pin control disabled, SSx can be used as I/O pin

0110

= I2C Slave mode, 7-bit address

0111

= I2C Slave mode, 10-bit address

1000

= I2C Master mode, clock = FOSC/(4 * (SSPxADD+1))(4)

1001

= Reserved

1010

= SPI Master mode, clock = FOSC/(4 * (SSPxADD+1))(5)

1011

= I2C firmware controlled Master mode (Slave idle)

1100

= Reserved

1101

= Reserved

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

Note

In Master mode, the overflow bit is not set since each new reception (and transmission) is initiated by writing to the SSPxBUF register.

When enabled, these pins must be properly configured as input or output.

When enabled, the SDAx and SCLx pins must be configured as inputs.

SSPxADD values of 0, 1 or 2 are not supported for I2C mode.

SSPxADD value of ‘0’ is not supported. Use SSPM = 0000 instead.

PIC12LF1501 Datasheet(PDF) 204 Page - Microchip Technology

PIC12LF1501 Datasheet(HTML) 204 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Descarga

Enlace URL