PIC18F4450-I/PT Microchip Technology, PIC18F4450-I/PT Datasheet - Page 254
PIC18F4450-I/PT
Manufacturer Part Number
PIC18F4450-I/PT
Description
IC PIC MCU FLASH 8KX16 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F2221-ISO.pdf
(46 pages)
2.PIC18F2450-ISO.pdf
(324 pages)
3.PIC18F2450-ISO.pdf
(6 pages)
4.PIC18F2450-ISO.pdf
(8 pages)
5.PIC18F2450-ISO.pdf
(4 pages)
6.PIC18F2450-ISO.pdf
(4 pages)
7.PIC18F4450-IP.pdf
(322 pages)
Specifications of PIC18F4450-I/PT
Program Memory Type
FLASH
Program Memory Size
16KB (8K x 16)
Package / Case
44-TQFP, 44-VQFP
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
UART/USART, USB
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
34
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
EUSART/USB
Maximum Clock Frequency
48 MHz
Number Of Programmable I/os
34
Number Of Timers
3
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, DM163025, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
13-ch x 10-bit
Height
1 mm
Length
10 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2 V
Width
10 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DM163025 - PIC DEM FULL SPEED USB DEMO BRD444-1001 - DEMO BOARD FOR PICMICRO MCUAC164020 - MODULE SKT PROMATEII 44TQFP
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4450-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC18F2221-ISO PDF datasheet
- PIC18F2450-ISO PDF datasheet #2
- PIC18F2450-ISO PDF datasheet #3
- PIC18F2450-ISO PDF datasheet #4
- PIC18F2450-ISO PDF datasheet #5
- PIC18F2450-ISO PDF datasheet #6
- PIC18F4450-IP PDF datasheet #7
- Current page: 254 of 324
- Download datasheet (6Mb)
PIC18F2450/4450
TBLWT
Syntax:
Operands:
Operation:
Status Affected: None
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
DS39760D-page 252
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
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 6.0 “Flash Program Memory”
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
TBLPTR<0> = 0: Least Significant Byte of
TBLPTR<0> = 1: Most Significant Byte of
Decode
0000
Q1
No
operation
operation
TABLAT)
(Read
0000
Q2
No
No
Program Memory Word
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
TABLAT
TBLPTR
HOLDING REGISTER
TABLAT
TBLPTR
HOLDING REGISTER
HOLDING REGISTER
TABLAT
TBLPTR
HOLDING REGISTER
HOLDING REGISTER
(00A356h)
(00A356h)
(01389Bh)
(01389Ah)
(01389Bh)
(01389Ah)
Table Write (Continued)
TBLWT
TBLWT
© 2008 Microchip Technology Inc.
*+;
+*;
=
=
=
=
=
=
=
=
=
=
=
=
=
=
55h
00A356h
FFh
55h
00A357h
55h
34h
01389Ah
FFh
FFh
34h
01389Bh
FFh
34h
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