PIC18F4685-E/PT Microchip Technology, PIC18F4685-E/PT Datasheet - Page 212
![96KB, Flash, 3328bytes-RAM, 36I/O, 8-bit Family,nanoWatt,ECAN 44 TQFP 10x10x1mm](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC18F4685-E/PT
Manufacturer Part Number
PIC18F4685-E/PT
Description
96KB, Flash, 3328bytes-RAM, 36I/O, 8-bit Family,nanoWatt,ECAN 44 TQFP 10x10x1mm
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PCM18XT0.pdf
(484 pages)
2.PIC18F2221-ISO.pdf
(46 pages)
3.PIC18F2682-ISP.pdf
(6 pages)
4.PIC18F2682-ISP.pdf
(4 pages)
Specifications of PIC18F4685-E/PT
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
36
Program Memory Size
96KB (48K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3.25K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
I3-DB18F4680 - BOARD DAUGHTER ICEPIC3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4685-E/PT
Manufacturer:
MICROCHIP
Quantity:
2 000
Company:
Part Number:
PIC18F4685-E/PT
Manufacturer:
Microchip Technology
Quantity:
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Part Number:
PIC18F4685-E/PT
Manufacturer:
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Quantity:
20 000
- PCM18XT0 PDF datasheet
- PIC18F2221-ISO PDF datasheet #2
- PIC18F2682-ISP PDF datasheet #3
- PIC18F2682-ISP PDF datasheet #4
- Current page: 212 of 484
- Download datasheet (9Mb)
PIC18F2682/2685/4682/4685
17.4.5
The addressing procedure for the I
the first byte after the Start condition usually
determines which device will be the slave addressed by
the master. The exception is the general call address
which can address all devices. When this address is
used, all devices should, in theory, respond with an
Acknowledge.
The general call address is one of eight addresses
reserved for specific purposes by the I
consists of all ‘0’s with R/W = 0.
The general call address is recognized when the
General
(SSPCON2<7> set). Following a Start bit detect, 8 bits
are shifted into the SSPSR and the address is
compared against the SSPADD. It is also compared to
the general call address and fixed in hardware.
FIGURE 17-15:
DS39761C-page 212
SDA
SCL
SSPIF
BF (SSPSTAT<0>)
SSPOV (SSPCON1<6>)
GCEN (SSPCON2<7>)
Call
GENERAL CALL ADDRESS
SUPPORT
Enable
S
SLAVE MODE GENERAL CALL ADDRESS SEQUENCE
(7 OR 10-BIT ADDRESS MODE)
1
bit,
2
General Call Address
GCEN,
2
C bus is such that
3
2
4
C protocol. It
is
5
enabled
6
7
R/W = 0
8
ACK
If the general call address matches, the SSPSR is
transferred to the SSPBUF, the BF flag bit is set (eighth
bit) and on the falling edge of the ninth bit (ACK bit), the
SSPIF interrupt flag bit is set.
When the interrupt is serviced, the source for the
interrupt can be checked by reading the contents of the
SSPBUF. The value can be used to determine if the
address was device specific or a general call address.
In 10-Bit Address mode, the SSPADD is required to be
updated for the second half of the address to match
and the UA bit is set (SSPSTAT<1>). If the general call
address is sampled when the GCEN bit is set, while the
slave is configured in 10-Bit Address mode, then the
second half of the address is not necessary, the UA bit
will not be set and the slave will begin receiving data
after the Acknowledge (Figure 17-15).
Address is compared to General Call Address
after ACK, set interrupt
9
D7
1
D6
2
Cleared in software
SSPBUF is read
D5
Receiving Data
3
D4
4
D3
© 2009 Microchip Technology Inc.
5
D2
6
D1
7
D0
8
ACK
9
‘0’
‘1’
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