PIC16F914-I/PT Microchip Technology, PIC16F914-I/PT Datasheet - Page 164

• Manufacturer Part Number: PIC16F914-I/PT
• Description: IC PIC MCU FLASH 4KX14 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F914-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 7KB (4K x 14)
• Package / Case: 44-TQFP, 44-VQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 35
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SSP/I2C/AUSART/SPI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 35
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DV164120, DM163029
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT44PT3 - SOCKET TRAN ICE 44MQFP/TQFPAC164305 - MODULE SKT FOR PM3 44TQFP444-1001 - DEMO BOARD FOR PICMICRO MCUAC164020 - MODULE SKT PROMATEII 44TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC16F91X
FIGURE 14-1:
To enable the serial port, SSPEN bit (SSPCON<5>)
must be set. To reset or reconfigure SPI mode:
• Clear bit SSPEN
• Re-initialize the SSPCON register
• Set SSPEN bit
This configures the SDI, SDO, SCK and SS pins as
serial port pins. For the pins to behave in a serial port
function, they must have their data direction bits (in the
TRISC register) appropriately programmed. This is:
• SDI must have TRISC<7> set
• SDO must have TRISC<4> cleared
• SCK (Master mode) must have TRISC<6>
• SCK (Slave mode) must have TRISC<6> set
• SS must have TRISA<5> set.
DS41250B-page 162
SDO/SEG11
C2OUT/SS/
RC6/TX/CK/
SCK/
RA5/AN2/
SEG9
SEG5
SDA/SEG8
RC4/T1G/
cleared
RC7/RX/
DT/SDI/
SCL/
Peripheral OE
Read
SS Control
Select
TRISC<6>
Edge
bit 0
Enable
Select
Edge
SSPBUF reg
SSP BLOCK DIAGRAM
(SPI MODE)
SSPSR reg
SSPM<3:0>
Clock Select
4
2
Write
Prescaler
4, 16, 64
Clock
Shift
TMR2 Output
Data Bus
Internal
2
T
CY
Preliminary
.
Note 1: When the SPI is in Slave mode with SS
2: If the SPI is used in Slave mode with
3: When the SPI is in Slave mode with SS pin
pin control enabled (SSPCON<3:0> =
0100), the SPI module will reset if the SS
pin is set to V
CKE = 1, then the SS pin control must be
enabled.
control enabled (SSPCON<3:0> = 0100),
the state of the SS pin can affect the state
read back from the TRISC<4> bit. The
peripheral OE signal from the SSP module
into PORTC controls the state that is read
back from the TRISC<4> bit (see
Section 19.4
PIC16F91X-I (Industrial), PIC16F91X-E
(Extended)” for information on PORTC).
If read-modify-write instructions, such as
BSF, are performed on the TRISC register
while the SS pin is high, this will cause the
TRISC<4> bit to be set, thus disabling the
SDO output.
 2004 Microchip Technology Inc.
DD
.
“DC
Characteristics: