PIC24FJ48GA002-I/SS Microchip Technology, PIC24FJ48GA002-I/SS Datasheet - Page 151

• Manufacturer Part Number: PIC24FJ48GA002-I/SS
• Description: IC PIC MCU FLASH 48K 28-SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 24Fr

Specifications of PIC24FJ48GA002-I/SS

• Core Size: 16-Bit
• Program Memory Size: 48KB (16K x 24)
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, PMP, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SSOP
• Controller Family/series: PIC24
• No. Of I/o's: 21
• Ram Memory Size: 8KB
• Cpu Speed: 32MHz
• No. Of Timers: 5
• No. Of Pwm Channels: 5
• Embedded Interface Type: I2C, SPI, UART
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DM240011 - KIT STARTER MPLAB FOR PIC24F MCUAC162088 - HEADER MPLAB ICD2 24FJ64GA004 28AC164338 - MOD SKT PIC24F/DSPIC33F 28SOICDV164033 - KIT START EXPLORER 16 MPLAB ICD2
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

16.0
The Inter-Integrated Circuit™ (I
interface useful for communicating with other periph-
eral or microcontroller devices. These peripheral
devices may be serial EEPROMs, display drivers, A/D
Converters, etc.
The I
• Independent master and slave logic
• 7-bit and 10-bit device addresses
• General call address, as defined in the I
• Clock stretching to provide delays for the
• Both 100 kHz and 400 kHz bus specifications.
• Configurable address masking
• Multi-Master modes to prevent loss of messages
• Bus Repeater mode, allowing the acceptance of
• Automatic SCL
A block diagram of the module is shown in Figure 16-1.
16.1
The I
cannot be reassigned to alternate pins using peripheral
pin select. To allow some flexibility with peripheral
multiplexing, the I2C1 module in all devices, can be
reassigned to the alternate pins, designated as ASCL1
and ASDA1 during device configuration.
Pin assignment is controlled by the I2C1SEL Configu-
ration bit; programming this bit (= 0) multiplexes the
module to the ASCL1 and ASDA1 pins.
 2010 Microchip Technology Inc.
Note:
processor to respond to a slave data request
in arbitration
all messages as a slave regardless of the address
2
2
C modules are tied to fixed pin assignments, and
C module supports these features:
INTER-INTEGRATED CIRCUIT
(I
Peripheral Remapping Options
2
This data sheet summarizes the features
of this group of PIC24F devices. It is not
intended to be a comprehensive reference
source. For more information, refer to the
“PIC24F
”Section 24. Inter-Integrated Circuit
(I
C™)
2
C™)” (DS39702).
Family
2
Reference
C™) module is a serial
2
C protocol
Manual”,
PIC24FJ64GA004 FAMILY
16.2
The details of sending a message in Master mode
depends on the communications protocol for the device
being communicated with. Typically, the sequence of
events is as follows:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Wait for and verify an Acknowledge from the
11. Enable master reception to receive serial
12. Generate an ACK or NACK condition at the end
13. Generate a Stop condition on SDAx and SCLx.
Assert a Start condition on SDAx and SCLx.
Send the I
with a write indication.
Wait for and verify an Acknowledge from the
slave.
Send the first data byte (sometimes known as
the command) to the slave.
Wait for and verify an Acknowledge from the
slave.
Send the serial memory address low byte to the
slave.
Repeat steps 4 and 5 until all data bytes are
sent.
Assert a Repeated Start condition on SDAx and
SCLx.
Send the device address byte to the slave with
a read indication.
slave.
memory data.
of a received byte of data.
Communicating as a Master in a
Single Master Environment
2
C device address byte to the slave
DS39881D-page 151