PIC18F2331-E/MM Microchip Technology, PIC18F2331-E/MM Datasheet - Page 322

• Manufacturer Part Number: PIC18F2331-E/MM
• Description: IC MCU FLASH 4KX16 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2331-E/MM

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-QFN
• Core: PIC
• Processor Series: PIC18F
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 40 MHz
• Data Ram Size: 768 B
• Data Rom Size: 256 B
• On-chip Adc: Yes
• Number Of Programmable I/os: 24
• Number Of Timers: 4
• Operating Supply Voltage: 2 V to 5.5 V
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit
• A/d Channels Available: 5
• Height: 0.88 mm
• Interface Type: EUSART, I2C, SPI, SSP
• Length: 6 mm
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Supply Voltage (max): 5.5 V, 5.8 V
• Supply Voltage (min): 3.9 V, 4.2 V
• Width: 6 mm
• For Use With: I3-DB18F4431 - BOARD DAUGHTER ICEPIC3
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification
• Other names: PIC18F2331-E/ML; PIC18F2331-E/ML

PIC18F2331/2431/4331/4431
TBLWT
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
DS39616D-page 322
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
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
gram Memory”
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
TBLPTR[0] = 0: Least Significant Byte
TBLPTR[0] = 1: Most Significant Byte
0000
TBLWT ( *; *+; *-; +*)
0000
Section 8.0 “Flash Pro-
for additional details on
of Program Memory
Word
of Program Memory
Word
0000
nn = 0 *
11nn
=1 *+
=2 *-
=3 +*
TBLWT Table Write (Continued)
Words:
Cycles: 2
Q Cycle Activity:
Example 1:
Example 2:
Before Instruction
After Instructions (table write completion)
Before Instruction
After Instruction (table write completion)
1
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)
 2010 Microchip Technology Inc.
(Read
Q2
No
No
*+;
+*;
=
=
=
=
=
=
=
=
=
=
=
=
=
=
operation
operation
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