PIC18F45J11-I/ML Microchip Technology, PIC18F45J11-I/ML Datasheet - Page 314
![IC PIC MCU FLASH 32K 2V 44-QFN](/photos/6/81/68122/150-44-qfn_sml.jpg)
PIC18F45J11-I/ML
Manufacturer Part Number
PIC18F45J11-I/ML
Description
IC PIC MCU FLASH 32K 2V 44-QFN
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Specifications of PIC18F45J11-I/ML
Core Size
8-Bit
Program Memory Size
32KB (16K x 16)
Core Processor
PIC
Speed
48MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
34
Program Memory Type
FLASH
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2.15 V ~ 3.6 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-QFN
Controller Family/series
PIC18
No. Of I/o's
22
Ram Memory Size
3.6875KB
Cpu Speed
48MHz
No. Of Timers
5
No. Of Pwm Channels
2
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
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, DV164136, DM163022, DM183032, MA180023
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 13 Channel
A/d Bit Size
10 bit
A/d Channels Available
13
Height
0.88 mm
Length
8 mm
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2.15 V
Width
8 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164322 - MODULE SOCKET MPLAB PM3 28/44QFN
Eeprom Size
-
Lead Free Status / Rohs Status
Details
- Current page: 314 of 528
- Download datasheet (8Mb)
PIC18F46J11 FAMILY
18.5.14
While in Sleep mode, the I
addresses or data and when an address match or
complete byte transfer occurs, wake the processor
from Sleep (if the MSSP interrupt is enabled).
18.5.15
A Reset disables the MSSP module and terminates the
current transfer.
18.5.16
In Multi-Master mode, the interrupt generation on the
detection of the Start and Stop conditions allows the
determination of when the bus is free. The Start and
Stop bits are cleared from a Reset or when the MSSP
module is disabled. Control of the I
when the P bit (SSPxSTAT<4>) is set, or the bus is Idle,
with both the Start and Stop bits clear. When the bus is
busy, enabling the MSSP interrupt will generate the
interrupt when the Stop condition occurs.
In multi-master operation, the SDAx line must be
monitored for arbitration to see if the signal level is the
expected output level. This check is performed in
hardware with the result placed in the BCLxIF bit.
The states where arbitration can be lost are:
• Address Transfer
• Data Transfer
• A Start Condition
• A Repeated Start Condition
• An Acknowledge Condition
18.5.17
Multi-Master mode support is achieved by bus arbitra-
tion. When the master outputs address/data bits onto the
SDAx pin, arbitration takes place when the master out-
FIGURE 18-27:
DS39932C-page 314
SDAx
SCLx
BCLxIF
SLEEP OPERATION
EFFECTS OF A RESET
MULTI-MASTER MODE
MULTI -MASTER
COMMUNICATION, BUS COLLISION
AND BUS ARBITRATION
BUS COLLISION TIMING FOR TRANSMIT AND ACKNOWLEDGE
2
C module can receive
Data changes
while SCLx = 0
2
C bus may be taken
SDAx released
by master
SDAx line pulled low
by another source
deasserted and the respective control bits in the
puts a ‘1’ on SDAx, by letting SDAx float high and
another master asserts a ‘0’. When the SCLx pin floats
high, data should be stable. If the expected data on
SDAx is a ‘1’ and the data sampled on the SDAx pin = 0,
then a bus collision has taken place. The master will set
the Bus Collision Interrupt Flag, BCLxIF, and reset the
I
If a transmit was in progress when the bus collision
occurred, the transmission is halted, the BF flag is
cleared, the SDAx and SCLx lines are deasserted and
the SSPxBUF can be written to. When the user services
the bus collision Interrupt Service Routine and if the I
bus is free, the user can resume communication by
asserting a Start condition.
If a Start, Repeated Start, Stop or Acknowledge condition
was in progress when the bus collision occurred, the con-
dition is aborted, the SDAx and SCLx lines are
SSPxCON2 register are cleared. When the user services
the bus collision Interrupt Service Routine (ISR), and if
the I
by asserting a Start condition.
The master will continue to monitor the SDAx and SCLx
pins. If a Stop condition occurs, the SSPxIF bit will be set.
A write to the SSPxBUF will start the transmission of
data at the first data bit regardless of where the
transmitter left off when the bus collision occurred.
In Multi-Master mode, the interrupt generation on the
detection of Start and Stop conditions allows the deter-
mination of when the bus is free. Control of the I
can be taken when the Stop bit is set in the SSPxSTAT
register, or the bus is Idle and the Start and Stop bits
are cleared.
2
C port to its Idle state (Figure 18-27).
2
C bus is free, the user can resume communication
Sample SDAx. While SCLx is high,
data doesn’t match what is driven
by the master;
bus collision has occurred
Set bus collision
interrupt (BCLxIF)
© 2009 Microchip Technology Inc.
2
C bus
2
C
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