PIC18F24J10-I/SP Microchip Technology, PIC18F24J10-I/SP Datasheet - Page 167

• Manufacturer Part Number: PIC18F24J10-I/SP
• Description: IC PIC MCU FLASH 8KX16 28-DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F24J10-I/SP

• Program Memory Type: FLASH
• Program Memory Size: 16KB (8K x 16)
• Package / Case: 28-DIP (0.300", 7.62mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 21
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SPIC/I2C/EUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 3.6 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, DM183032, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10-ch x 10-bit
• Package: 28SPDIP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162074 - HEADER INTRFC MPLAB ICD2 44TQFPAC162067 - HEADER INTRFC MPLAB ICD2 40/28P
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

16.4.3.2
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
interrupt. It is possible to mask more than one address
bit at a time, which makes it possible to Acknowledge
up to 31 addresses in 7-Bit Addressing mode and up to
63 addresses in 10-Bit Addressing mode (see
Example 16-2).
The I
address masking is used or not. However, when
address masking is used, the I
Acknowledge multiple addresses and cause interrupts.
When this occurs, it is necessary to determine which
address caused the interrupt by checking SSPxBUF.
In 7-Bit Addressing mode, Address Mask bits,
ADMSK<5:1>
corresponding address bits in the SSPxADD register. For
any ADMSK bits that are set (ADMSK<n> = 1), the cor-
responding address bit is ignored (SSPxADD<n> = x).
EXAMPLE 16-2:
© 2009 Microchip Technology Inc.
7-Bit Addressing:
10-Bit Addressing:
2
SSPxADD<7:1>= A0h (1010000) (SSPxADD<0> is assumed to be ‘0’)
ADMSK<5:1>
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>
Addresses Acknowledged: A0h, A1h, A2h, A3h, A4h, A5h, A6h, A7h, A8h, A9h, AAh, ABh, ACh, ADh, AEh, AFh
C Slave behaves the same way, whether
Address Masking
(SSPxCON2<5:1>),
ADDRESS MASKING EXAMPLES
= 00111
= 00111
2
C slave can
mask
the
PIC18F45J10 FAMILY
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 Addressing mode, ADMSK<5:2> bits mask
the corresponding address bits in the SSPxADD regis-
ter. 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 (SSPxADD<n> = x).
Also note that although in 10-Bit Addressing 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 Most Significant bits of the
bits of the address.
address are not affected by address
masking.
DS39682E-page 165