PIC18F442-E/P Microchip Technology, PIC18F442-E/P Datasheet - Page 251
![IC MCU CMOS 40MHZ 8K FLASH 40DIP](/photos/6/61/66192/150-40-dip_sml.jpg)
PIC18F442-E/P
Manufacturer Part Number
PIC18F442-E/P
Description
IC MCU CMOS 40MHZ 8K FLASH 40DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F242-ISO.pdf
(332 pages)
3.PIC18F242-ISO.pdf
(14 pages)
4.PIC18F242-ISO.pdf
(16 pages)
5.PIC18F242-ISO.pdf
(16 pages)
6.PIC18F242-ISO.pdf
(14 pages)
7.PIC18LF242-ISO.pdf
(36 pages)
Specifications of PIC18F442-E/P
Core Size
8-Bit
Program Memory Size
16KB (8K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
34
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
40-DIP (0.600", 15.24mm)
Controller Family/series
PIC18
No. Of I/o's
34
Eeprom Memory Size
256Byte
Ram Memory Size
768Byte
Cpu Speed
40MHz
No. Of Timers
4
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DVA18XP400 - DEVICE ADAPTER 18F4220 PDIP 40LDACICE0206 - ADAPTER MPLABICE 40P 600 MIL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F442-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC18F242-ISO PDF datasheet #2
- PIC18F242-ISO PDF datasheet #3
- PIC18F242-ISO PDF datasheet #4
- PIC18F242-ISO PDF datasheet #5
- PIC18F242-ISO PDF datasheet #6
- PIC18LF242-ISO PDF datasheet #7
- Current page: 251 of 332
- Download datasheet (6Mb)
TBLRD
Syntax:
Operands:
Operation:
Status Affected:None
Encoding:
Description:
Words:
Cycles:
© 2006 Microchip Technology Inc.
Q Cycle Activity:
operation
Decode
No
Q1
(Read Program
[ label ]
None
if TBLRD *,
(Prog Mem (TBLPTR))
TBLPTR - No Change;
if TBLRD *+,
(Prog Mem (TBLPTR))
(TBLPTR) +1
if TBLRD *-,
(Prog Mem (TBLPTR))
(TBLPTR) -1
if TBLRD +*,
(TBLPTR) +1
(Prog Mem (TBLPTR))
This instruction is used to read the con-
tents of Program Memory (P.M.). To
address the program memory, a pointer
called Table Pointer (TBLPTR) is used.
The TBLPTR (a 21-bit pointer) points
to each byte in the program memory.
TBLPTR has a 2 Mbyte address range.
The TBLRD instruction can modify the
value of TBLPTR as follows:
• no change
• post-increment
• post-decrement
• pre-increment
1
2
Table Read
No operation
operation
Memory)
0000
TBLPTR[0] = 0: Least Significant
TBLPTR[0] = 1: Most Significant
No
Q2
TBLRD ( *; *+; *-; +*)
0000
operation
operation
TBLPTR;
TBLPTR;
TBLPTR;
No
No
Q3
Byte of Program
Memory Word
Byte of Program
Memory Word
0000
(Write TABLAT)
TABLAT;
TABLAT;
TABLAT;
TABLAT;
No operation
operation
nn=0 *
No
Q4
10nn
=1 *+
=2 *-
=3 +*
TBLRD
Example1:
Example2:
Before Instruction
After Instruction
Before Instruction
After Instruction
TABLAT
TBLPTR
MEMORY(0x00A356)
TABLAT
TBLPTR
TABLAT
TBLPTR
MEMORY(0x01A357)
MEMORY(0x01A358)
TABLAT
TBLPTR
Table Read (cont’d)
TBLRD
TBLRD
PIC18FXX2
*+ ;
+* ;
=
=
=
=
=
=
=
=
=
=
=
DS39564C-page 249
0x55
0x00A356
0x34
0x34
0x00A357
0xAA
0x01A357
0x12
0x34
0x34
0x01A358
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