PIC16F884-E/P Microchip Technology, PIC16F884-E/P Datasheet - Page 183

• Manufacturer Part Number: PIC16F884-E/P
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,DIP,40PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F884-E/P

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DVA18XP400 - DEVICE ADAPTER 18F4220 PDIP 40LD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REGISTER 13-2:
© 2009 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3-0
WCOL
R/W-0
WCOL: Write Collision Detect bit
Master mode:
1 = A write to the SSPBUF register was attempted while the I
0 = No collision
Slave mode:
1 = The SSPBUF register is written while it is still transmitting the previous word (must be cleared in software)
0 = No collision
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
0 = No overflow
In I
1 = A byte is received while the SSPBUF register is still holding the previous byte. SSPOV is a “don’t care” in Transmit
0 = No overflow
SSPEN: Synchronous Serial Port Enable bit
In both modes, when enabled, these pins must be properly configured as input or output
In SPI mode:
1 = Enables serial port and configures SCK, SDO, SDI and SS as the source of the serial port pins
0 = Disables serial port and configures these pins as I/O port pins
In I
1 = Enables the serial port and configures the SDA and SCL pins as the source of the serial port pins
0 = Disables serial port and configures these pins as I/O port pins
CKP: Clock Polarity Select bit
In SPI mode:
1 = Idle state for clock is a high level
0 = Idle state for clock is a low level
In I
SCK release control
1 = Enable clock
0 = Holds clock low (clock stretch). (Used to ensure data setup time.)
In I
Unused in this mode
SSPM<3:0>: Synchronous Serial Port Mode Select bits
0000 = SPI Master mode, clock = F
0001 = SPI Master mode, clock = F
0010 = SPI Master mode, clock = F
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 = I
0111 = I
1000 = I
1001 = Load Mask function
1010 = Reserved
1011 = I
1100 = Reserved
1101 = Reserved
1110 = I
1111 = I
2
2
2
2
SSPOV
C mode:
C mode:
C Slave mode:
C Master mode:
R/W-0
is lost. Overflow can only occur in Slave mode. 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 (must be cleared in software).
mode (must be cleared in software).
SSPCON: SSP CONTROL REGISTER 1
2
2
2
2
2
2
C Slave mode, 7-bit address
C Slave mode, 10-bit address
C Master mode, clock = F
C firmware controlled Master mode (Slave idle)
C Slave mode, 7-bit address with Start and Stop bit interrupts enabled
C Slave mode, 10-bit address with Start and Stop bit interrupts enabled
W = Writable bit
‘1’ = Bit is set
SSPEN
R/W-0
OSC
OSC
OSC
OSC
PIC16F882/883/884/886/887
R/W-0
/4
/16
/64
/ (4 * (SSPADD+1))
CKP
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
SSPM3
R/W-0
2
C conditions were not valid for a transmission to be started
SSPM2
R/W-0
x = Bit is unknown
SSPM1
R/W-0
DS41291F-page 181
SSPM0
R/W-0
bit 0