PIC18F4220-E/PT Microchip Technology, PIC18F4220-E/PT Datasheet - Page 299
PIC18F4220-E/PT
Manufacturer Part Number
PIC18F4220-E/PT
Description
IC MCU FLASH 2KX16 EEPROM 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F1320-ISS.pdf
(36 pages)
3.PIC18F2220-ISO.pdf
(394 pages)
4.PIC18F2220-ISO.pdf
(6 pages)
5.PIC18F2220-ISO.pdf
(6 pages)
6.PIC18F2220-ISO.pdf
(8 pages)
7.PIC18F2220-ISO.pdf
(6 pages)
8.PIC18F2220-ISO.pdf
(6 pages)
Specifications of PIC18F4220-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
36
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4220-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC18F1320-ISS PDF datasheet #2
- PIC18F2220-ISO PDF datasheet #3
- PIC18F2220-ISO PDF datasheet #4
- PIC18F2220-ISO PDF datasheet #5
- PIC18F2220-ISO PDF datasheet #6
- PIC18F2220-ISO PDF datasheet #7
- PIC18F2220-ISO PDF datasheet #8
- Current page: 299 of 394
- Download datasheet (7Mb)
TBLWT
Syntax:
Operands:
Operation:
Status Affected: None
Encoding:
Description:
© 2007 Microchip Technology Inc.
Table Write
[ label ]
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 MBtye 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
0000
TBLPTR[0] = 0:Least Significant
TBLPTR[0] = 1:Most Significant
TBLWT ( *; *+; *-; +*)
0000
Byte of Program
Memory Word
Byte of Program
Memory Word
0000
PIC18F2220/2320/4220/4320
nn=0 *
11nn
=1 *+
=2 *-
=3 +*
TBLWT Table Write (Continued)
Words: 1
Cycles: 2
Q Cycle Activity:
Example1:
Example 2:
Before Instruction
After Instructions (table write completion)
Before Instruction
After Instruction (table write completion)
TABLAT
TBLPTR
HOLDING REGISTER
(0x00A356)
TABLAT
TBLPTR
HOLDING REGISTER
(0x00A356)
TABLAT
TBLPTR
HOLDING REGISTER
(0x01389A)
HOLDING REGISTER
(0x01389B)
TABLAT
TBLPTR
HOLDING REGISTER
(0x01389A)
HOLDING REGISTER
(0x01389B)
operation
Decode
Q1
No
TBLWT
TBLWT
operation
operation
TABLAT)
(Read
Q2
No
No
*+;
+*;
=
=
=
=
=
=
=
=
=
=
=
=
=
=
operation
operation
DS39599G-page 297
0x55
0x00A356
0xFF
0x55
0x00A357
0x55
0x34
0x01389A
0xFF
0xFF
0x34
0x01389B
0xFF
0x34
Q3
No
No
Register )
operation
operation
(Write to
Holding
Q4
No
No
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