PIC16F707-I/MV Microchip Technology, PIC16F707-I/MV Datasheet - Page 65
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PIC16F707-I/MV
Manufacturer Part Number
PIC16F707-I/MV
Description
14KB Flash Program, MTouch, 32ch CSM, 1.8V-5.5V, 16MHz Internal Oscillator, 8b A
Manufacturer
Microchip Technology
Series
PIC® XLP™ mTouch™ 16Fr
Datasheet
1.PIC16F707-IPT.pdf
(284 pages)
Specifications of PIC16F707-I/MV
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
36
Program Memory Size
14KB (8K x 14)
Program Memory Type
FLASH
Ram Size
363 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 14x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-UFQFN Exposed Pad
Processor Series
PIC16F
Core
PIC
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
- Current page: 65 of 284
- Download datasheet (3Mb)
6.6
PORTE is a 4-bit wide, bidirectional port. The
corresponding data direction register is TRISE. Setting a
TRISE bit (= 1) will make the corresponding PORTE pin
an input (i.e., put the corresponding output driver in a
High-Impedance mode). Clearing a TRISE bit (= 0) will
make the corresponding PORTE pin an output (i.e.,
enable the output driver and put the contents of the
output latch on the selected pin). The exception is RE3,
which is input only and its TRIS bit will always read as
‘1’. Example 6-5 shows how to initialize PORTE.
Reading the PORTE register (Register 6-16) 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. RE3 reads ‘0’ when
MCLRE = 1.
The TRISE register (Register 6-17) controls the PORTE
pin output drivers, even when they are being used as
analog inputs. The user should ensure the bits in the
TRISE register are maintained set when using them as
analog inputs. I/O pins configured as analog input always
read ‘0’.
REGISTER 6-16:
2010 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-4
bit 3-0
Note:
U-0
—
PORTE and TRISE Registers
The ANSELE register must be initialized to
configure an analog channel as a digital
input. Pins configured as analog inputs will
read ‘0’.
Unimplemented: Read as ‘0’
RE<3:0>: PORTE I/O Pin bits
1 = Port pin is > V
0 = Port pin is < V
U-0
—
PORTE: PORTE REGISTER
W = Writable bit
‘1’ = Bit is set
IH
IL
U-0
—
U-0
Preliminary
—
PIC16F707/PIC16LF707
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
EXAMPLE 6-5:
6.6.1
The ANSELE register (Register 6-18) is used to
configure the Input mode of an I/O pin to analog.
Setting the appropriate ANSELE bit high will cause all
digital reads on the pin to be read as ‘0’ and allow
analog functions on the pin to operate correctly.
The state of the ANSELE bits has no affect on digital
output functions. A pin with TRIS clear and ANSELE
set will still operate as a digital output, but the Input
mode will be analog. This can cause unexpected
behavior
instructions on the affected port.
RE3
BANKSEL PORTE
CLRF
BANKSEL ANSELE
CLRF
BANKSEL TRISE
MOVLW
MOVWF
R-x
PORTE
ANSELE
B‘00001100’
TRISE
ANSELE REGISTER
when
R/W-x
RE2
INITIALIZING PORTE
executing
;
;Init PORTE
;
;digital I/O
;
;Set RE<2> as an input
;and set RE<1:0>
;as outputs
x = Bit is unknown
R/W-x
RE1
DS41418A-page 65
read-modify-write
R/W-x
RE0
bit 0
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