DSPIC30F3013-30I/SO Microchip Technology, DSPIC30F3013-30I/SO Datasheet - Page 102

• Manufacturer Part Number: DSPIC30F3013-30I/SO
• Description: IC DSPIC MCU/DSP 24K 28SOIC
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F3013-30I/SO

• Program Memory Type: FLASH
• Program Memory Size: 24KB (8K x 24)
• Package / Case: 28-SOIC (7.5mm Width)
• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 30 MIPs
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 20
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 10x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Product: DSCs
• Data Bus Width: 16 bit
• Processor Series: DSPIC30F
• Core: dsPIC
• Maximum Clock Frequency: 30 MHz
• Number Of Programmable I/os: 30
• Data Ram Size: 2 KB
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE4000, DM240002, DM300018, DM330011
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT28SO-1 - SOCKET TRANSITION 28SOIC 300MILDV164005 - KIT ICD2 SIMPLE SUIT W/USB CABLE
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: DSPIC30F301330ISO

dsPIC30F2011/2012/3012/3013
14.12.2
Master mode reception is enabled by programming the
Receive Enable bit, RCEN (I2CCON<3>). The I
module must be Idle before the RCEN bit is set,
otherwise the RCEN bit will be disregarded. The Baud
Rate Generator begins counting and on each rollover,
the state of the SCL pin ACK and data are shifted into
the I2CRSR on the rising edge of each clock.
14.12.3
In I
located in the I2CBRG register. When the BRG is
loaded with this value, the BRG counts down to ‘0’ and
stops until another reload has taken place. If clock
arbitration is taking place, for instance, the BRG is
reloaded when the SCL pin is sampled high.
As per the I
400 kHz. However, the user can specify any baud rate
up to 1 MHz. I2CBRG values of ‘0’ or ‘1’ are illegal.
EQUATION 14-1:
14.12.4
Clock arbitration occurs when the master de-asserts
the SCL pin (SCL allowed to float high) during any
receive, transmit, or Restart/Stop condition. When the
SCL pin is allowed to float high, the Baud Rate
Generator (BRG) is suspended from counting until the
SCL pin is actually sampled high. When the SCL pin is
sampled high, the Baud Rate Generator is reloaded
with the contents of I2CBRG and begins counting. This
ensures that the SCL high time will always be at least
one BRG rollover count in the event that the clock is
held low by an external device.
14.12.5
Multi-master operation support is achieved by bus
arbitration. When the master outputs address/data bits
onto the SDA pin, arbitration takes place when the
master outputs a ‘1’ on SDA by letting SDA float high
while another master asserts a ‘0’. When the SCL pin
floats high, data should be stable. If the expected data
on SDA is a ‘1’ and the data sampled on the SDA
pin = 0, then a bus collision has taken place. The
master will set the MI2CIF pulse and reset the master
portion of the I
DS70139G-page 102
2
C Master mode, the reload value for the BRG is
I2CBRG =
I
BAUD RATE GENERATOR
CLOCK ARBITRATION
MULTI-MASTER COMMUNICATION,
BUS COLLISION, AND BUS
ARBITRATION
2
2
C MASTER RECEPTION
C standard, FSCK may be 100 kHz or
2
C port to its Idle state.
(
F
F
SCL
CY
SERIAL CLOCK RATE
–
1,111,111
F
CY
)
– 1
2
C
If a transmit was in progress when the bus collision
occurred, the transmission is halted, the TBF flag is
cleared, the SDA and SCL lines are de-asserted and a
value can now be written to I2CTRN. When the user
services the I
Routine, if the I
user can resume communication by asserting a Start
condition.
If a Start, Restart, Stop or Acknowledge condition was
in progress when the bus collision occurred, the
condition is aborted, the SDA and SCL lines are
de-asserted, and the respective control bits in the
I2CCON register are cleared to ‘0’. When the user
services the bus collision Interrupt Service Routine,
and if the I
communication by asserting a Start condition.
The master will continue to monitor the SDA and SCL
pins, and if a Stop condition occurs, the MI2CIF bit will
be set.
A write to the I2CTRN will start the transmission of data
at the first data bit regardless of where the transmitter
left off when bus collision occurred.
In a multi-master environment, the interrupt generation
on the detection of Start and Stop conditions allows the
determination of when the bus is free. Control of the I
bus can be taken when the P bit is set in the I2CSTAT
register, or the bus is Idle and the S and P bits are
cleared.
14.13 I
14.13.1
When the device enters Sleep mode, all clock sources
to the module are shut down and stay at logic ‘0’. If
Sleep occurs in the middle of a transmission and the
state machine is partially into a transmission as the
clocks stop, then the transmission is aborted. Similarly,
if Sleep occurs in the middle of a reception, then the
reception is aborted.
14.13.2
For the I
stop on Idle or continue on Idle. If I2CSIDL = 0, the
module will continue operation on assertion of the Idle
mode. If I2CSIDL = 1, the module will stop on Idle.
2
Sleep and Idle Modes
2
C, the I2CSIDL bit selects if the module will
C Module Operation During CPU
I
SLEEP MODE
I
MODE
2
2
2
C OPERATION DURING CPU
C OPERATION DURING CPU IDLE
C bus is free, the user can resume
2
2
C bus is free (i.e., the P bit is set), the
C master event Interrupt Service
© 2010 Microchip Technology Inc.
2
C