PIC18F87J90-I/PT Microchip Technology, PIC18F87J90-I/PT Datasheet - Page 222
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PIC18F87J90-I/PT
Manufacturer Part Number
PIC18F87J90-I/PT
Description
IC PIC MCU FLASH 128KB 80-TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F67J90-IPT.pdf
(450 pages)
2.PIC18F67J90-IPT.pdf
(3 pages)
3.PIC18F67J90-IPT.pdf
(10 pages)
4.PIC18F66J90-IPT.pdf
(444 pages)
Specifications of PIC18F87J90-I/PT
Program Memory Type
FLASH
Program Memory Size
128KB (64K x 16)
Package / Case
80-TFQFP
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, LVD, POR, PWM, WDT
Number Of I /o
67
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3923 B
Interface Type
AUSART, EUSART, I2C, SPI
Maximum Clock Frequency
48 MHz
Number Of Programmable I/os
67
Number Of Timers
4
Operating Supply Voltage
2.65 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
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 12 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC162079 - HEADER MPLAB ICD2 18F85J90 64/80AC164323 - MODULE SKT FOR 100TQFP
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F87J90-I/PT
Manufacturer:
MICROCHIP
Quantity:
4 000
Company:
Part Number:
PIC18F87J90-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
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PIC18F87J90 FAMILY
17.4.3.2
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 mode and up to
63 addresses in 10-bit mode (see Example 17-2).
The I
masking is used or not. However, when address
masking is used, the I
multiple addresses and cause interrupts. When this
occurs, it is necessary to determine which address
caused the interrupt by checking SSPBUF.
In 7-Bit Addressing mode, address mask bits,
ADMSK<5:1> (SSPCON<5:1>), mask the correspond-
ing address bits in the SSPADD register. For any ADMSK
bits that are set (ADMSK<n> = 1), the corresponding
address bit is ignored (SSPADD<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.
EXAMPLE 17-2:
DS39933C-page 220
7-Bit Addressing:
10-Bit Addressing:
2
C Slave behaves the same way whether address
SSPADD<7:1> = A0h (1010000) (SSPADD<0> is assumed to be ‘0’)
ADMSK<5:1>
Addresses Acknowledged: A0h, A2h, A4h, A6h, A8h, AAh, ACh, AEh
SSPADD<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
Address Masking
ADDRESS MASKING EXAMPLES
= 00111
= 00111
2
C slave can Acknowledge
Preliminary
In 10-Bit Addressing mode, ADMSK<5:2> bits mask
the corresponding address bits in the SSPADD regis-
ter. In addition, ADMSK1 simultaneously masks the two
LSbs of the address (SSPADD<1:0>). For any ADMSK
bits that are active (ADMSK<n> = 1), the correspond-
ing address bit is ignored (SSPADD<n> = x). Also note
that although in 10-Bit Addressing mode, the upper
address bits reuse part of the SSPADD 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.
© 2009 Microchip Technology Inc.
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