PIC18LF44J50-I/ML Microchip Technology, PIC18LF44J50-I/ML Datasheet - Page 288
![IC PIC MCU FLASH 16K 2V 44-QFN](/photos/6/81/68122/150-44-qfn_sml.jpg)
PIC18LF44J50-I/ML
Manufacturer Part Number
PIC18LF44J50-I/ML
Description
IC PIC MCU FLASH 16K 2V 44-QFN
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheets
1.PIC18LF24J10-ISS.pdf
(32 pages)
2.PIC18LF24J50-ISS.pdf
(554 pages)
3.PIC18LF24J50-ISS.pdf
(12 pages)
Specifications of PIC18LF44J50-I/ML
Program Memory Type
FLASH
Program Memory Size
16KB (8K x 16)
Package / Case
44-QFN
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
34
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3776 B
Interface Type
EUSART, I2C, SPI
Maximum Clock Frequency
31 KHz
Number Of Programmable I/os
22
Number Of Timers
5
Operating Supply Voltage
2 V to 3.6 V
Maximum Operating Temperature
+ 85 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, DM183022, DM183032, DV164136, MA180024
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 13 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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PIC18F46J50 FAMILY
18.5.3.2
Masking an address bit causes that bit to become a
“don’t care”. When one address bit is masked, two
addresses will be Acknowledged and cause an inter-
rupt. It is possible to mask more than one address bit at
a time, which greatly expands the number of addresses
Acknowledged.
The I
masking is used or not. However, when address mask-
ing is used, the I
addresses and cause interrupts. When this occurs, it is
necessary to determine which address caused the
interrupt by checking SSPxBUF.
The PIC18F46J50 Family of devices is capable of
using two different Address Masking modes in I
slave operation: 5-Bit Address Masking and 7-Bit
Address Masking. The Masking mode is selected at
device
Configuration bit. The default device configuration is
7-Bit Address Masking.
Both Masking modes, in turn, support address masking
of 7-bit and 10-bit addresses. The combination of
Masking modes and addresses provide different
ranges of Acknowledgable addresses for each
combination.
While both Masking modes function in roughly the
same manner, the way they use address masks is
different.
18.5.3.3
As the name implies, 5-Bit Address Masking mode uses
an address mask of up to five bits to create a range of
addresses to be Acknowledged, using bits 5 through 1 of
EXAMPLE 18-3:
DS39931C-page 288
7-Bit Addressing:
10-Bit Addressing:
2
C slave behaves the same way, whether address
SSPxADD<7:1>= A0h (1010000) (SSPxADD<0> is assumed to be ‘0’)
ADMSK<5:1> = 00111
Addresses Acknowledged: A0h, A2h, A4h, A6h, A8h, AAh, ACh, AEh
SSPxADD<7:0> = A0h (10100000) (The two MSbs of the address are ignored in this example, since
they are not affected by masking)
ADMSK<5:1> = 00111
Addresses Acknowledged: A0h, A1h, A2h, A3h, A4h, A5h, A6h, A7h, A8h, A9h, AAh, ABh, ACh, ADh,
AEh, AFh
configuration
Address Masking Modes
5-Bit Address Masking Mode
2
C slave can Acknowledge multiple
ADDRESS MASKING EXAMPLES IN 5-BIT MASKING MODE
using
the
MSSPMSK
2
C
corresponding address bits in the SSPxADD register. For
the incoming address. This allows the module to
Acknowledge up to 31 addresses when using 7-bit
addressing, or 63 addresses with 10-bit addressing (see
Example 18-3). This Masking mode is selected when
the MSSPMSK Configuration bit is programmed (‘0’).
The address mask in this mode is stored in the
SSPxCON2 register, which stops functioning as a control
register in I
Address
ADMSK<5:1>
any ADMSK bits that are set (ADMSK<n> = 1), the cor-
responding address bit is ignored (SSPxADD<n> = x).
For the module to issue an address Acknowledge, it is
sufficient to match only on addresses that do not have an
active address mask.
In 10-Bit Address Masking mode, bits, ADMSK<5:2>,
mask the corresponding address bits in the SSPxADD
register. In addition, ADMSK1 simultaneously masks
the two LSbs of the address (SSPxADD<1:0>). For any
ADMSK bits that are active (ADMSK<n> = 1), the cor-
responding address bit is ignored (SPxADD<n> = x).
Also note, that although in 10-Bit Address Masking
mode, the upper address bits reuse part of the
SSPxADD register bits. The address mask bits do not
interact with those bits; they only affect the lower
address bits.
Note 1: ADMSK1 masks the two Least Significant
2: The two MSbs of the address are not
Masking
2
bits of the address.
affected by address masking.
C Slave mode (Register 18-8). In 7-Bit
(SSPxCON2<5:1>),
mode,
© 2009 Microchip Technology Inc.
address
mask
mask
bits,
the
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