PIC18C858-E/PT Microchip Technology, PIC18C858-E/PT Datasheet - Page 44
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
PIC18C858-E/PT
Manufacturer Part Number
PIC18C858-E/PT
Description
IC MCU OTP 16KX16 CAN 80TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16C770-ISO.pdf
(8 pages)
3.PIC18C658-IPT.pdf
(366 pages)
4.PIC18C658-IPT.pdf
(16 pages)
5.PIC18C658-IPT.pdf
(16 pages)
6.PIC18C658-IPT.pdf
(16 pages)
Specifications of PIC18C858-E/PT
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
68
Program Memory Size
32KB (16K x 16)
Program Memory Type
OTP
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
80-TFQFP
Processor Series
PIC18C
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1536 B
Interface Type
3-Wire, I2C, SPI, USART, CAN
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
68
Number Of Timers
4 bit
Operating Supply Voltage
2.5 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
ICE2000, DM163007, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
6
Data Rom Size
4 KB
Height
1 mm
Length
12 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.2 V
Width
12 mm
For Use With
XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPAC164320 - MODULE SKT MPLAB PM3 80TQFPAC174011 - MODULE SKT PROMATEII 80TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
PIC18C858E/PT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18C858-E/PT
Manufacturer:
MICROCHIP
Quantity:
12 000
Company:
Part Number:
PIC18C858-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16C770-ISO PDF datasheet #2
- PIC18C658-IPT PDF datasheet #3
- PIC18C658-IPT PDF datasheet #4
- PIC18C658-IPT PDF datasheet #5
- PIC18C658-IPT PDF datasheet #6
- Current page: 44 of 366
- Download datasheet (7Mb)
PIC18CXX8
4.2.3
Since the Top-of-Stack (TOS) is readable and writable,
the ability to push values onto the stack and pull values
off the stack without disturbing normal program execu-
tion is a desirable option. To push the current PC value
onto the stack, a PUSH instruction can be executed.
This will increment the stack pointer and load the cur-
rent PC value onto the stack. TOSU, TOSH and TOSL
can then be modified to place a return address on the
stack.
The POP instruction discards the current TOS by decre-
menting the stack pointer. The previous value pushed
onto the stack then becomes the TOS value.
4.2.4
These RESETs are enabled by programming the
STVREN configuration bit. When the STVREN bit is
disabled, a full or underflow condition will set the appro-
priate STKFUL or STKUNF bit, but not cause a device
RESET. When the STVREN bit is enabled, a full or
underflow will set the appropriate STKFUL or STKUNF
bit and then cause a device RESET. The STKFUL or
STKUNF bits are only cleared by the user software or
a POR.
DS30475A-page 44
PUSH AND POP INSTRUCTIONS
STACK FULL/UNDERFLOW RESETS
Advanced Information
4.3
A “fast return” option is available for interrupts and
calls. A fast register stack is provided for the STATUS,
WREG and BSR registers and is only one layer in
depth. The stack is not readable or writable and is
loaded with the current value of the corresponding reg-
ister when the processor vectors for an interrupt. The
values in the fast register stack are then loaded back
into the working registers if the fast return instruc-
tion is used to return from the interrupt.
A low or high priority interrupt source will push values
into the stack registers. If both low and high priority
interrupts are enabled, the stack registers cannot be
used reliably for low priority interrupts. If a high priority
interrupt occurs while servicing a low priority interrupt,
the stack register values stored by the low priority inter-
rupt will be overwritten.
If high priority interrupts are not disabled during low pri-
ority interrupts, users must save the key registers in
software during a low priority interrupt.
If no interrupts are used, the fast register stack can be
used to restore the STATUS, WREG and BSR registers
at the end of a subroutine call. To use the fast register
stack for a subroutine call, a fast call instruction
must be executed.
Example 4-1 shows a source code example that uses
the fast register stack.
EXAMPLE 4-1:
CALL SUB1, FAST
SUB1
RETURN FAST
Fast Register Stack
•
•
•
•
•
FAST REGISTER STACK
CODE EXAMPLE
;STATUS, WREG, BSR
;SAVED IN FAST REGISTER
;STACK
;RESTORE VALUES SAVED
;IN FAST REGISTER STACK
2000 Microchip Technology Inc.
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