PIC18F8620-I/PT Microchip Technology, PIC18F8620-I/PT Datasheet - Page 116

• Manufacturer Part Number: PIC18F8620-I/PT
• Description: IC MCU FLASH 32KX16 EE 80TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F8620-I/PT

• Core Size: 8-Bit
• Program Memory Size: 64KB (32K x 16)
• Core Processor: PIC
• Speed: 25MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 68
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 3.75K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TFQFP
• Controller Family/series: PIC18
• No. Of I/o's: 68
• Eeprom Memory Size: 1024Byte
• Ram Memory Size: 3.75KB
• Cpu Speed: 25MHz
• No. Of Timers: 5
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3840 B
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 68
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136, DM183022, DM183032
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPAC164320 - MODULE SKT MPLAB PM3 80TQFPAC174011 - MODULE SKT PROMATEII 80TQFP
• Lead Free Status / Rohs Status: Details

PIC18F6520/8520/6620/8620/6720/8720
10.5
PORTE is an 8-bit wide, bidirectional port. The corre-
sponding 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.,
put the contents of the output latch on the selected pin).
Read-modify-write operations on the LATE register,
read and write the latched output value for PORTE.
PORTE is an 8-bit port with Schmitt Trigger input buff-
ers. Each pin is individually configurable as an input or
output. PORTE is multiplexed with the CCP module
(Table 10-9).
On PIC18F8X20 devices, PORTE is also multiplexed
with the system bus as the external memory interface;
the I/O bus is available only when the system bus is
disabled, by setting the EBDIS bit in the MEMCON
register (MEMCON<7>). If the device is configured in
Microprocessor or Extended Microcontroller mode,
then the PORTE<7:0> becomes the high byte of the
address/data bus for the external program memory
interface. In Microcontroller mode, the PORTE<2:0>
pins become the control inputs for the Parallel Slave
Port when bit PSPMODE (PSPCON<4>) is set. (Refer
to Section 4.1.1 “PIC18F8X20 Program Memory
Modes” for more information on program memory
modes.)
DS39609B-page 114
PORTE, TRISE and LATE
Registers
When the Parallel Slave Port is active, three PORTE
pins (RE0/RD/AD8, RE1/WR/AD9 and RE2/CS/AD10)
function as its control inputs. This automatically occurs
when the PSPMODE bit (PSPCON<4>) is set. Users
must also make certain that bits TRISE<2:0> are set to
configure the pins as digital inputs and the ADCON1
register is configured for digital I/O. The PORTE PSP
control functions are summarized in Table 10-9.
Pin RE7 can be configured as the alternate peripheral
pin for CCP module 2 when the device is operating in
Microcontroller mode. This is done by clearing the
configuration bit, CCP2MX, in configuration register,
CONFIG3H (CONFIG3H<0>).
EXAMPLE 10-5:
CLRF
CLRF
MOVLW
MOVWF
Note:
PORTE
LATE
0x03
TRISE
For PIC18F8X20 (80-pin) devices operat-
ing in Extended Microcontroller mode,
PORTE defaults to the system bus on
Power-on Reset.
; Initialize PORTE by
; clearing output
; data latches
; Alternate method
; to clear output
; data latches
; Value used to
; initialize data
; direction
; Set RE1:RE0 as inputs
; RE7:RE2 as outputs
INITIALIZING PORTE
 2004 Microchip Technology Inc.