PIC18F87J50-I/PT Microchip Technology, PIC18F87J50-I/PT Datasheet - Page 404

• Manufacturer Part Number: PIC18F87J50-I/PT
• Description: IC PIC MCU FLASH 64KX16 80TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F87J50-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 128KB (64K x 16)
• Package / Case: 80-TFQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 65
• Ram Size: 3.8K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3936 B
• Interface Type: I2C, MSSP, SPI, EUSART
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 66
• Number Of Timers: 5
• Maximum Operating Temperature: + 100 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DM183032, DM183022, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162087 - HEADER MPLAB ICD2 18F87J50 68/84MA180021 - MODULE PLUG-IN 18F87J50 FS USBAC164328 - MODULE SKT FOR 80TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18F87J50 FAMILY
TBLWT
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
DS39775C-page 404
Table Write
TBLWT ( *; *+; *-; +*)
None
if TBLWT*,
(TABLAT) → Holding Register,
TBLPTR – No Change;
if TBLWT*+,
(TABLAT) → Holding Register,
(TBLPTR) + 1 → TBLPTR;
if TBLWT*-,
(TABLAT) → Holding Register,
(TBLPTR) – 1 → TBLPTR;
if TBLWT+*,
(TBLPTR) + 1 → TBLPTR,
(TABLAT) → Holding Register
None
This instruction uses the 3 LSBs of
TBLPTR to determine which of the
8 holding registers the TABLAT is written
to. The holding registers are used to
program the contents of Program Memory
(P.M.). (Refer to Section 5.0 “Memory
Organization” for additional details on
programming Flash memory.)
The TBLPTR (a 21-bit pointer) points to
each byte in the program memory.
TBLPTR has a 2-Mbyte address range.
The LSb of the TBLPTR selects which
byte of the program memory location to
access.
The TBLWT instruction can modify the
value of TBLPTR as follows:
• no change
• post-increment
• post-decrement
• pre-increment
1
2
operation
Decode
TBLPTR<0> = 0: Least Significant Byte
TBLPTR<0> = 1: Most Significant Byte
0000
Q1
No
operation
operation
TABLAT)
(Read
0000
Q2
No
No
of Program Memory
Word
of Program Memory
Word
operation
operation
0000
Q3
No
No
nn=0 *
operation
operation
Register)
(Write to
Holding
=1 *+
=2 *-
=3 +*
11nn
Q4
No
No
TBLWT
Example 1:
Example 2:
Before Instruction
After Instructions (table write completion)
Before Instruction
After Instruction (table write completion)
TABLAT
TBLPTR
HOLDING REGISTER
(00A356h)
TABLAT
TBLPTR
HOLDING REGISTER
(00A356h)
TABLAT
TBLPTR
HOLDING REGISTER
(01389Ah)
HOLDING REGISTER
(01389Bh)
TABLAT
TBLPTR
HOLDING REGISTER
(01389Ah)
HOLDING REGISTER
(01389Bh)
Table Write (Continued)
TBLWT *+;
TBLWT +*;
© 2009 Microchip Technology Inc.
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55h
00A356h
FFh
55h
00A357h
55h
34h
01389Ah
FFh
FFh
34h
01389Bh
FFh
34h