PIC16F1934-E/ML Microchip Technology, PIC16F1934-E/ML Datasheet - Page 98

• Manufacturer Part Number: PIC16F1934-E/ML
• Description: IC PIC MCU FLASH 256KX7 44-QFN
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1934-E/ML

• Program Memory Type: FLASH
• Program Memory Size: 7KB (4K x 14)
• Package / Case: 44-QFN
• 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: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: EUSART/MI2C/SPI
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 5
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC16F193X/LF193X
6.5
PORTD
corresponding
(Register 6-16). Setting a TRISD bit (= 1) will make the
corresponding PORTD pin an input (i.e., put the
corresponding output driver in a High-Impedance mode).
Clearing a TRISD bit (= 0) will make the corresponding
PORTD pin an output (i.e., enable the output driver and
put the contents of the output latch on the selected pin).
Example 6-4 shows how to initialize PORTD.
Reading the PORTD register (Register 6-14) 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 6-14:
REGISTER 6-15:
DS41364A-page 96
bit 7
Legend:
R = Readable bit
u = bit is unchanged
‘1’ = Bit is set
bit 7-0
Note 1:
bit 7
Legend:
R = Readable bit
u = bit is unchanged
‘1’ = Bit is set
bit 7-0
Note 1:
Note 1: PORTD is available on PIC16F1936 and
R/W-x/u
R/W-x/u
LATD7
RD7
2:
(1)
PORTD and TRISD Registers
is a 8-bit wide, bidirectional port. The
PORTD is not implemented on PIC16F1933/1936/1938 devices, read as ‘0’.
Writes to PORTD are actually written to corresponding LATD register. Reads from PORTD register is
return of actual I/O pin values.
PORTD implemented on PIC16F1934/1937/1939/PIC16LF1934/1937/1939 devices only.
PIC16F1938 only.
data
RD<7:0>: PORTD General Purpose I/O Pin bits
1 = Port pin is > V
0 = Port pin is < V
LATD<7:0>: PORTD Output Latch Value bits
R/W-x/u
R/W-x/u
LATD6
RD6
PORTD: PORTD REGISTER
LATD: PORTD 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
LATD5
IH
IL
RD5
is
TRISD
R/W-x/u
R/W-x/u
LATD4
RD4
Preliminary
(1)
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
(1,2)
R/W-x/u
R/W-x/u
LATD3
The TRISD register (Register 6-16) controls the
PORTD pin output drivers, even when they are being
used as analog inputs. The user should ensure the bits
in the TRISD register are maintained set when using
them as analog inputs. I/O pins configured as analog
input always read ‘0’.
EXAMPLE 6-4:
RD3
BANKSEL PORTD
CLRF
BANKSEL ANSELD
CLRF
BANKSEL TRISD
MOVLW
MOVWF
PORTD
ANSELD
B‘00001100’
TRISD
R/W-x/u
R/W-x/u
LATD2
RD2
INITIALIZING PORTD
© 2008 Microchip Technology Inc.
;
;Init PORTD
;Make PORTD digital
;
;Set RD<3:2> as inputs
;and set RD<7:4,1:0>
;as outputs
R/W-x/u
R/W-x/u
LATD1
RD1
R/W-x/u
R/W-x/u
LATD0
RD0
bit 0
bit 0