PIC16F1937-I/P Microchip Technology, PIC16F1937-I/P Datasheet - Page 95

• Manufacturer Part Number: PIC16F1937-I/P
• Description: IC PIC MCU FLASH 512KX14 40-PDIP
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1937-I/P

• Program Memory Type: FLASH
• Program Memory Size: 14KB (8K x 14)
• Package / Case: 40-DIP (0.600", 15.24mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 36
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: EUSART/MI2C/SPI
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14-ch x 10-bit
• A/d Bit Size: 10 bit
• A/d Channels Available: 14
• Height: 4.95 mm
• Length: 53.21 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Width: 14.73 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

6.4
PORTC is a 8-bit wide, bidirectional port. The
corresponding
(Register 6-13). Setting a TRISC bit (= 1) will make the
corresponding PORTC pin an input (i.e., put the
corresponding output driver in a High-Impedance mode).
Clearing a TRISC bit (= 0) will make the corresponding
PORTC pin an output (i.e., enable the output driver and
put the contents of the output latch on the selected pin).
Example 6-3 shows how to initialize PORTC.
Reading the PORTC register (Register 6-11) reads the
status of the pins, whereas writing to it will write to the
PORT latch. All write operations are read-modify-write
operations. Therefore, a write to a port implies that the
port pins are read, this value is modified and then written
to the PORT data latch.
REGISTER 6-11:
REGISTER 6-12:
© 2008 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
u = bit is unchanged
‘1’ = Bit is set
bit 7-0
bit 7
Legend:
R = Readable bit
u = bit is unchanged
‘1’ = Bit is set
bit 7-0
Note 1:
R/W-x/u
R/W-x/u
LATC7
RC7
PORTC and TRISC Registers
Writes to PORTC are actually written to corresponding LATC register. Reads from PORTC register is
return of actual I/O pin values.
data
RC<7:0>: PORTC General Purpose I/O Pin bits
1 = Port pin is > V
0 = Port pin is < V
LATC<7:0>: PORTC Output Latch Value bits
R/W-x/u
R/W-x/u
LATC6
RC6
PORTC: PORTC REGISTER
LATC: PORTC DATA LATCH REGISTER
direction
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
R/W-x/u
R/W-x/u
register
LATC5
IH
IL
RC5
is
TRISC
R/W-x/u
R/W-x/u
LATC4
RC4
Preliminary
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
(1)
R/W-x/u
R/W-x/u
LATC3
The TRISC register (Register 6-13) controls the PORTC
pin output drivers, even when they are being used as
analog inputs. The user should ensure the bits in the
TRISC register are maintained set when using them as
analog inputs. I/O pins configured as analog input always
read ‘0’.
EXAMPLE 6-3:
The location of the CCP2 function is controlled by the
CCP2SEL bit in the APFCON register (refer to
Register 6-1).
RC3
BANKSEL PORTC
CLRF
BANKSEL TRISC
MOVLW
MOVWF
PIC16F193X/LF193X
PORTC
B‘00001100’
TRISC
R/W-x/u
R/W-x/u
LATC2
RC2
INITIALIZING PORTC
;
;Init PORTC
;
;Set RC<3:2> as inputs
;and set RC<7:4,1:0>
;as outputs
R/W-x/u
R/W-x/u
LATC1
RC1
DS41364A-page 93
R/W-x/u
R/W-x/u
LATC0
RC0
bit 0
bit 0