PIC18LF4685-I/P Microchip Technology, PIC18LF4685-I/P Datasheet - Page 403

• Manufacturer Part Number: PIC18LF4685-I/P
• Description: IC PIC MCU FLASH 48KX16 40DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18LF4685-I/P

• Core Size: 8-Bit
• Program Memory Size: 96KB (48K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 3.25K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Controller Family/series: PIC18
• No. Of I/o's: 36
• Eeprom Memory Size: 1024Byte
• Ram Memory Size: 3.25KB
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Package: 40PDIP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 44
• Interface Type: CAN/I2C/SPI/USART
• On-chip Adc: 11-chx10-bit
• Number Of Timers: 4
• Core: PIC
• Processor Series: PIC18LF
• Maximum Clock Frequency: 40 MHz
• Data Ram Size: 3.25 KB
• Mounting Style: Through Hole
• A/d Bit Size: 10 bit
• A/d Channels Available: 11
• Height: 4.95 mm
• Length: 53.21 mm
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2 V
• Width: 14.73 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

TBLRD
Syntax:
Operands:
Operation:
Status Affected: None
Encoding:
Description:
Words:
Cycles:
© 2009 Microchip Technology Inc.
Q Cycle Activity:
operation
Decode
No
Q1
(Read Program
Table Read
TBLRD ( *; *+; *-; +*)
None
if TBLRD *,
(Prog Mem (TBLPTR)) → TABLAT,
TBLPTR – No Change;
if TBLRD *+,
(Prog Mem (TBLPTR)) → TABLAT,
(TBLPTR) + 1 → TBLPTR;
if TBLRD *-,
(Prog Mem (TBLPTR)) → TABLAT,
(TBLPTR) – 1 → TBLPTR;
if TBLRD +*,
(TBLPTR) + 1 → TBLPTR,
(Prog Mem (TBLPTR)) → TABLAT
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
No operation
operation
Memory)
TBLPTR[0] = 0: Least Significant Byte of
TBLPTR[0] = 1: Most Significant Byte of
0000
No
Q2
0000
operation
operation
Program Memory Word
Program Memory Word
No
No
Q3
0000
No operation
operation
TABLAT)
(Write
PIC18F2682/2685/4682/4685
No
Q4
nn=0 *
10nn
=1 *+
=2 *-
=3 +*
TBLRD
Example 1:
Example 2:
Before Instruction
After Instruction
Before Instruction
After Instruction
TABLAT
TBLPTR
MEMORY(00A356h)
TABLAT
TBLPTR
TABLAT
TBLPTR
MEMORY(01A357h)
MEMORY(01A358h)
TABLAT
TBLPTR
Table Read (Continued)
TBLRD
TBLRD
*+ ;
+* ;
=
=
=
=
=
=
=
=
=
=
=
DS39761C-page 403
55h
00A356h
34h
34h
00A357h
0AAh
01A357h
12h
34h
34h
01A358h