PIC18F86J50T-I/PT Microchip Technology, PIC18F86J50T-I/PT Datasheet - Page 218

• Manufacturer Part Number: PIC18F86J50T-I/PT
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,64PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F86J50T-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 65
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Ram Size: 3.8K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TFQFP
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3904 B
• Interface Type: I2C, MSSP, SPI, EUSART
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 65
• 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, 12 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162087 - HEADER MPLAB ICD2 18F87J50 68/84MA180021 - MODULE PLUG-IN 18F87J50 FS USBAC164328 - MODULE SKT FOR 80TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: PIC18F86J50T-I/PTTR

PIC18F87J50 FAMILY
18.1
Each of the Enhanced CCP modules may have up to
four PWM outputs, depending on the selected operat-
ing mode. These outputs, designated PxA through
PxD, are multiplexed with various I/O pins. Some
ECCP pin assignments are constant, while others
change based on device configuration. For those pins
that do change, the controlling bits are:
• CCP2MX Configuration bit
• ECCPMX Configuration bit (80-pin devices only)
• Program Memory Operating mode, set by the
The pin assignments for the Enhanced CCP modules
are summarized in Table 18-1, Table 18-2 and
Table 18-3. To configure the I/O pins as PWM outputs,
the proper PWM mode must be selected by setting the
PxMx and CCPxMx bits (CCPxCON<7:6> and <3:0>,
respectively). The appropriate TRIS direction bits for
the corresponding port pins must also be set as
outputs.
18.1.1
In 80-pin devices, the use of Extended Microcontroller
mode has an indirect effect on the use of ECCP1 and
ECCP3 in Enhanced PWM modes. By default, PWM
outputs, P1B/P1C and P3B/P3C, are multiplexed to
PORTE pins along with the high-order byte of the
External Memory Bus. When the bus is active in
Extended Microcontroller mode, it overrides the
Enhanced CCP outputs and makes them unavailable.
Because of this, ECCP1 and ECCP3 can only be used
in compatible (single output) PWM modes when the
device is in Extended Microcontroller mode and default
pin configuration.
An exception to this configuration is when a 12-bit
address width is selected for the external bus
(EMB1:EMB0 Configuration bits = 01). In this case, the
upper pins of PORTE continue to operate as digital I/O,
even when the external bus is active. P1B/P1C and
P3B/P3C remain available for use as Enhanced PWM
outputs.
If an application requires the use of additional PWM
outputs during enhanced microcontroller operation, the
P1B/P1C and P3B/P3C outputs can be reassigned to
the upper bits of PORTH. This is done by clearing the
ECCPMX Configuration bit.
18.1.2
For 80-pin devices, the program memory mode of the
device (Section 5.1.3 “PIC18F87J50 Family Program
Memory Modes”) also impacts pin multiplexing for the
module. The ECCP2 input/output (ECCP2/P2A) can be
multiplexed to one of three pins. The default assignment
(CCP2MX Configuration bit is set) for all devices is
RC1. Clearing CCP2MX reassigns ECCP2/P2A to RE7.
DS39775C-page 218
EMB Configuration bits (80-pin devices only)
ECCP Outputs and Configuration
ECCP1/ECCP3 OUTPUTS AND
PROGRAM MEMORY MODE
ECCP2 OUTPUTS AND PROGRAM
MEMORY MODES
An additional option exists for 80-pin devices. When
these devices are operating in Microcontroller mode,
the multiplexing options described above still apply. In
Extended Microcontroller mode, clearing CCP2MX
reassigns ECCP2/P2A to RB3.
Changing the pin assignment of ECCP2 does not auto-
matically change any requirements for configuring the
port pin. Users must always verify that the appropriate
TRIS register is configured correctly for ECCP2
operation regardless of where it is located.
18.1.3
Only the ECCP2 module has four dedicated output pins
that are available for use. Assuming that the I/O ports
or other multiplexed functions on those pins are not
needed, they may be used whenever needed without
interfering with any other CCP module.
ECCP1 and ECCP3, on the other hand, only have
three dedicated output pins: ECCPx/PxA, PxB and
PxC. Whenever these modules are configured for
Quad PWM mode, the pin normally used for CCP4 or
CCP5 becomes the PxD output pins for ECCP3 and
ECCP1, respectively. The CCP4 and CCP5 modules
remain functional but their outputs are overridden.
18.1.4
Like the standard CCP modules, the ECCP modules
can utilize Timers 1, 2, 3 or 4, depending on the mode
selected. Timer1 and Timer3 are available for modules
in Capture or Compare modes, while Timer2 and
Timer4 are available for modules in PWM mode.
Additional details on timer resources are provided in
Section 17.1.1
Resources”.
18.1.5
When operating in compare or standard PWM modes,
the drivers for the ECCPx pins can be optionally config-
ured as open-drain outputs. This feature allows the
voltage level on the pin to be pulled to a higher level
through an external pull-up resistor, and allows the out-
put to communicate with external circuits without the
need for additional level shifters. For more information,
see Section 10.1.4 “Open-Drain Outputs”.
The open-drain output option is controlled by the bits in
the ODCON1 register. Setting the appropriate bit con-
figures the pin for the corresponding module for
open-drain operation. The ODCON1 memory shares
the same address space as of TMR1H. The ODCON1
register can be accessed by setting the ADSHR bit in
the WDTCON register (WDTCON<4>).
USE OF CCP4 AND CCP5 WITH
ECCP1 AND ECCP3
ECCP MODULES AND TIMER
RESOURCES
OPEN-DRAIN OUTPUT OPTION
“CCP
© 2009 Microchip Technology Inc.
Modules
and
Timer