PIC18F24J11-I/SP Microchip Technology, PIC18F24J11-I/SP Datasheet - Page 80
![IC PIC MCU FLASH 16KB 28-DIP](/photos/6/59/65908/150-28-dip_sml.jpg)
PIC18F24J11-I/SP
Manufacturer Part Number
PIC18F24J11-I/SP
Description
IC PIC MCU FLASH 16KB 28-DIP
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.MA180023.pdf
(528 pages)
2.PIC18LF24J10-ISS.pdf
(32 pages)
3.PIC18F24J11-ISS.pdf
(14 pages)
Specifications of PIC18F24J11-I/SP
Core Size
8-Bit
Program Memory Size
16KB (8K x 16)
Core Processor
PIC
Speed
48MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Program Memory Type
FLASH
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2.15 V ~ 3.6 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-DIP (0.300", 7.62mm)
Controller Family/series
PIC18
No. Of I/o's
16
Ram Memory Size
3.6875KB
Cpu Speed
48MHz
No. Of Timers
5
Interface
EUSART, I2C, SPI
Embedded Interface Type
EUSART, I2C, SPI
Rohs Compliant
Yes
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3776 B
Interface Type
EUSART, I2C, SPI
Maximum Clock Frequency
48 MHz
Number Of Timers
5
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, DM183032, DM183022, DM183033, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 10 Channel
Package
28SPDIP
Device Core
PIC
Family Name
PIC18
Maximum Speed
48 MHz
Operating Supply Voltage
2.5|3.3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC162067 - HEADER INTRFC MPLAB ICD2 40/28PAC164329 - MODULE SKT FOR 40DIP 18F45J10
Eeprom Size
-
Lead Free Status / Rohs Status
Details
- Current page: 80 of 528
- Download datasheet (8Mb)
PIC18F46J11 FAMILY
FIGURE 5-7:
5.3.2
While the use of the BSR with an embedded 8-bit
address allows users to address the entire range of
data memory, it also means that the user must always
ensure that the correct bank is selected. Otherwise,
data may be read from or written to the wrong location.
This can be disastrous if a GPR is the intended target
of an operation, but an SFR is written to instead.
Verifying and/or changing the BSR for each read or
write to data memory can become very inefficient.
To streamline access for the most commonly used data
memory locations, the data memory is configured with
an Access Bank, which allows users to access a
mapped block of memory without specifying a BSR.
The Access Bank consists of the first 96 bytes of
memory (00h-5Fh) in Bank 0 and the last 160 bytes of
memory (60h-FFh) in Bank 15. The lower half is known
as the Access RAM and is composed of GPRs. The
upper half is where the device’s SFRs are mapped.
These two areas are mapped contiguously in the
Access Bank and can be addressed in a linear fashion
by an 8-bit address (Figure 5-6).
The Access Bank is used by core PIC18 instructions
that include the Access RAM bit (the ‘a’ parameter in
the instruction). When ‘a’ is equal to ‘1’, the instruction
uses the BSR and the 8-bit address included in the
opcode for the data memory address. When ‘a’ is ‘0’,
however, the instruction is forced to use the Access
Bank address map; the current value of the BSR is
ignored entirely.
DS39932C-page 80
Note 1:
Bank Select
7
0
ACCESS BANK
2:
0
The Access RAM bit of the instruction can be used to force an override of the selected bank (BSR<3:0>) to
the registers of the Access Bank.
The MOVFF instruction embeds the entire 12-bit address in the instruction.
0
(2)
0
BSR
USE OF THE BANK SELECT REGISTER (DIRECT ADDRESSING)
0
(1)
0
1
0
0
FFFh
E00h
000h
100h
200h
300h
F00h
Data Memory
Bank 13
Bank 14
Bank 15
through
Bank 0
Bank 1
Bank 2
Bank 3
Using this “forced” addressing allows the instruction to
operate on a data address in a single cycle without
updating the BSR first. For 8-bit addresses of 60h and
above, this means that users can evaluate and operate
on SFRs more efficiently. The Access RAM below 60h
is a good place for data values that the user might need
to access rapidly, such as immediate computational
results or common program variables. Access RAM
also allows for faster and more code efficient context
saving and switching of variables.
The mapping of the Access Bank is slightly different
when the extended instruction set is enabled (XINST
Configuration bit = 1). This is discussed in more detail
in Section 5.6.3 “Mapping the Access Bank in
Indexed Literal Offset Mode”.
5.3.3
PIC18 devices may have banked memory in the GPR
area. This is data RAM, which is available for use by all
instructions. GPRs start at the bottom of Bank 0
(address 000h) and grow upward toward the bottom of
the SFR area. GPRs are not initialized by a POR and
are unchanged on all other Resets.
00h
FFh
00h
FFh
00h
FFh
00h
FFh
00h
FFh
00h
FFh
GENERAL PURPOSE
REGISTER FILE
7
1
1
1
1
© 2009 Microchip Technology Inc.
From Opcode
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1
1
1
1
1
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1
(2)
1
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