PIC16F722A Datasheet, PDF (175/284 Pages) Microchip Technology – 28-Pin Flash Microcontrollers with nanoWatt XLP Technology

PIC16F/LF722A/723A
REGISTER 17-4: SSPSTAT: SYNCHRONOUS SERIAL PORT STATUS REGISTER (I²C MODE)
R/W-0
R/W-0
R-0
R-0
R-0
R-0
R-0
R-0
SMP
CKE
D/A
P
S
R/W
UA
BF
bit 7
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
SMP: SPI Data Input Sample Phase bit
1 = Slew Rate Control (limiting) disabled. Operating in I²C Standard mode (100 kHz and 1 MHz).
0 = Slew Rate Control (limiting) enabled. Operating in I²C Fast mode (400 kHz).
bit 6
CKE: SPI Clock Edge Select bit
This bit must be maintained clear. Used in SPI mode only.
bit 5
D/A: DATA/ADDRESS bit (I²C mode only)
1 = Indicates that the last byte received or transmitted was data
0 = Indicates that the last byte received or transmitted was address
bit 4
P: Stop bit
This bit is cleared when the SSP module is disabled, or when the Start bit is detected last.
1 = Indicates that a Stop bit has been detected last (this bit is ‘0’ on Reset)
0 = Stop bit was not detected last
bit 3
S: Start bit
This bit is cleared when the SSP module is disabled, or when the Stop bit is detected last.
1 = Indicates that a Start bit has been detected last (this bit is ‘0’ on Reset)
0 = Start bit was not detected last
bit 2
R/W: READ/WRITE bit Information
This bit holds the R/W bit information following the last address match. This bit is only valid from the
address match to the next Start bit, Stop bit or ACK bit.
1 = Read
0 = Write
bit 1
UA: Update Address bit (10-bit I²C mode only)
1 = Indicates that the user needs to update the address in the SSPADD register
0 = Address does not need to be updated
bit 0
BF: Buffer Full Status bit
Receive:
1 = Receive complete, SSPBUF is full
0 = Receive not complete, SSPBUF is empty
Transmit:
1 = Transmit in progress, SSPBUF is full
0 = Transmit complete, SSPBUF is empty
 2010 Microchip Technology Inc.
DS41417A-page 175