PIC18C452-E/PT Microchip Technology, PIC18C452-E/PT Datasheet - Page 227
PIC18C452-E/PT
Manufacturer Part Number
PIC18C452-E/PT
Description
IC MCU OTP 16KX16 A/D 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16C770-ISO.pdf
(8 pages)
3.PIC18C242-ISO.pdf
(305 pages)
4.PIC18C242-ISO.pdf
(12 pages)
Specifications of PIC18C452-E/PT
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
33
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 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Other names
PIC18C452E/PT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18C452-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16C770-ISO PDF datasheet #2
- PIC18C242-ISO PDF datasheet #3
- PIC18C242-ISO PDF datasheet #4
- Current page: 227 of 305
- Download datasheet (6Mb)
TBLRD
Syntax:
Operands:
Operation:
Status Affected: None
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
2001 Microchip Technology Inc.
operation
Decode
No
Q1
operation
operation
Memory)
Table Read
[ label ]
None
if TBLRD *,
if TBLRD *+,
if TBLRD *-,
if TBLRD +*,
This instruction is used to read the
contents 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
Program
(Read
No
No
Q2
0000
(Prog Mem (TBLPTR))
TBLPTR - No Change;
(Prog Mem (TBLPTR))
(TBLPTR) +1
(Prog Mem (TBLPTR))
(TBLPTR) -1
(TBLPTR) +1
(Prog Mem (TBLPTR))
TBLPTR[0] = 0: Least Significant
Byte of Program Memory Word
TBLPTR[0] = 1: Most Significant
Byte of Program Memory Word
TBLRD ( *; *+; *-; +*)
operation
operation
0000
No
No
Q3
TBLPTR;
TBLPTR;
TBLPTR;
0000
operation
operation
TABLAT)
(Write
No
No
Q4
TABLAT;
TABLAT;
TABLAT;
TABLAT;
nn=0 *
10nn
=1 *+
=2 *-
=3 +*
TBLRD
Example 1:
Example 2:
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
PIC18CXX2
*+ ;
+* ;
=
=
=
=
=
=
=
=
=
=
=
DS39026C-page 225
0x55
0x00A356
0x34
0x34
0x00A357
0xAA
0x01A357
0x12
0x34
0x34
0x01A358
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