PIC18C858-I/L Microchip Technology, PIC18C858-I/L Datasheet - Page 72
PIC18C858-I/L
Manufacturer Part Number
PIC18C858-I/L
Description
IC PIC MCU OTP 16KX16 84PLCC
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-I/L
Core Size
8-Bit
Program Memory Size
32KB (16K x 16)
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Core Processor
PIC
Speed
40MHz
Connectivity
CAN, I²C, SPI, UART/USART
Number Of I /o
68
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 ~ 85°C
Package / Case
84-PLCC
Controller Family/series
PIC18
No. Of I/o's
68
Ram Memory Size
1.5KB
Cpu Speed
40MHz
No. Of Timers
4
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
+ 85 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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164310 - MODULE SKT FOR PM3 84PLCCDVA18XL840 - ADAPTER DEVICE ICE 84PLCCAC174012 - MODULE SKT PROMATEII 84PLCC
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
PIC18C858I/L
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18C858-I/L
Manufacturer:
Microchip
Quantity:
3 097
Company:
Part Number:
PIC18C858-I/L
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: 72 of 366
- Download datasheet (7Mb)
6.1
Example 6-1 shows the sequence to perform an 8 x 8
unsigned multiply. Only one instruction is required
when one argument of the multiply is already loaded in
the WREG register.
Example 6-2 shows the sequence to do an 8 x 8 signed
multiply. To account for the sign bits of the arguments,
each argument’s most significant bit (MSb) is tested
and the appropriate subtractions are done.
EXAMPLE 6-1:
EXAMPLE 6-2:
PIC18CXX8
MOVFF
MULWF
MOVFF
MULWF
BTFSC
SUBWF
MOVFF
BTFSC
SUBWF
DS30475A-page 72
Operation
ARG1, WREG
ARG2
ARG1, WREG
ARG2
ARG2, SB
PRODH, F
ARG2, WREG
ARG1, SB
PRODH, F
8 x 8 UNSIGNED MULTIPLY
ROUTINE
8 x 8 SIGNED MULTIPLY
ROUTINE
;
; ARG1 * ARG2 ->
;
PRODH:PRODL
; ARG1 * ARG2 ->
; PRODH:PRODL
; Test Sign Bit
; PRODH = PRODH
;
; Test Sign Bit
; PRODH = PRODH
;
- ARG1
- ARG2
Advanced Information
Example 6-3 shows the sequence to perform a 16 x 16
unsigned multiply. Equation 6-1 shows the algorithm
that is used. The 32-bit result is stored in 4 registers
RES3:RES0.
EQUATION 6-1:
EXAMPLE 6-3:
RES3:RES0
;
;
;
MOVFF
MULWF
MOVFF
MOVFF
MOVFF
MULWF
MOVFF
MOVFF
MOVFF
MULWF
MOVF
ADDWF
MOVF
ADDWFC
CLRF
ADDWFC
MOVFF
MULWF
MOVF
ADDWF
MOVF
ADDWFC
CLRF
ADDWFC
=
=
ARG1L, WREG
ARG2L
PRODH, RES1
PRODL, RES0
ARG1H, WREG
ARG2H
PRODH, RES3
PRODL, RES2
ARG1L, WREG
ARG2H
PRODL, W
RES1, F
PRODH, W
RES2, F
WREG
RES3, F
ARG1H, WREG
ARG2L
PRODL, W
RES1, F
PRODH, W
RES2, F
WREG
RES3, F
ARG1H:ARG1L • ARG2H:ARG2L
(ARG1H • ARG2H • 2
(ARG1H • ARG2L • 2
(ARG1L • ARG2H • 2
(ARG1L • ARG2L)
16 x 16 UNSIGNED
MULTIPLY ROUTINE
16 x 16 UNSIGNED
MULTIPLICATION
ALGORITHM
2000 Microchip Technology Inc.
; ARG1L * ARG2L ->
;
;
;
; ARG1H * ARG2H ->
;
;
;
; ARG1L * ARG2H ->
;
;
; Add cross
;
;
;
;
;
; ARG1H * ARG2L ->
;
;
; Add cross
;
;
;
;
PRODH:PRODL
PRODH:PRODL
PRODH:PRODL
PRODH:PRODL
products
products
16
8
8
)
)
)
+
+
+
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