PIC16F872-E/SO Microchip Technology, PIC16F872-E/SO Datasheet - Page 54

• Manufacturer Part Number: PIC16F872-E/SO
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SOP,28PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F872-E/SO

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC16F872
REGISTER 9-1:
DS30221C-page 52
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
SSPSTAT: SYNC SERIAL PORT STATUS REGISTER (ADDRESS: 94h)
bit 7
SMP: Sample bit
SPI Master mode:
1 = Input data sampled at end of data output time
0 = Input data sampled at middle of data output time
SPI Slave mode:
SMP must be cleared when SPI is used in Slave mode
In I
1= Slew rate control disabled for Standard Speed mode (100 kHz and 1 MHz)
0= Slew rate control enabled for High Speed mode (400 kHz)
CKE: SPI Clock Edge Select bit (Figure 9-2, Figure 9-3 and Figure 9-4)
SPI mode:
For CKP = 0
1 = Transmit happens on transition from active clock state to idle clock state
0 = Transmit happens on transition from idle clock state to active clock state
For CKP = 1
1 = Data transmitted on falling edge of SCK
0 = Data transmitted on rising edge of SCK
In I
1 = Input levels conform to SMBus spec
0 = Input levels conform to I
D/A: Data/Address bit (I
1 = Indicates that the last byte received or transmitted was data
0 = Indicates that the last byte received or transmitted was address
P: STOP bit
(I
1 = Indicates that a STOP bit has been detected last (this bit is '0' on RESET)
0 = STOP bit was not detected last
S: START bit
(I
1 = Indicates that a START bit has been detected last (this bit is '0' on RESET)
0 = START bit was not detected last
R/W: Read/Write bit information (I
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 not ACK bit.
In I
1 = Read
0 = Write
In I
1 = Transmit is in progress
0 = Transmit is not in progress.
Logical OR of this bit with SEN, RSEN, PEN, RCEN or ACKEN will indicate if the MSSP is in IDLE
mode.
UA: Update Address bit (10-bit I
1 = Indicates that the user needs to update the address in the SSPADD register
0 = Address does not need to be updated
BF: Buffer Full Status bit
Receive (SPI and I
1 = Receive complete, SSPBUF is full
0 = Receive not complete, SSPBUF is empty
Transmit (I
1 = Data Transmit in progress (does not include the ACK and STOP bits), SSPBUF is full
0 = Data Transmit complete (does not include the ACK and STOP bits), SSPBUF is empty
Legend:
R = Readable bit
- n = Value at POR
2
2
R/W-0
C mode only. This bit is cleared when the MSSP module is disabled, SSPEN is cleared.)
C mode only. This bit is cleared when the MSSP module is disabled, SSPEN is cleared.)
SMP
2
2
2
2
C Master or Slave mode:
C Master or Slave mode:
C Slave mode:
C Master mode:
2
C mode only):
R/W-0
CKE
2
C modes):
2
C mode only)
W = Writable bit
’1’ = Bit is set
2
R-0
D/A
C specs
2
C mode only)
2
C mode only)
R-0
P
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
R-0
S
R/W
R-0
© 2006 Microchip Technology Inc.
x = Bit is unknown
R-0
UA
R-0
BF
bit 0