PIC24HJ256GP610-I/PT Microchip Technology, PIC24HJ256GP610-I/PT Datasheet - Page 209

• Manufacturer Part Number: PIC24HJ256GP610-I/PT
• Description: IC PIC MCU FLASH 128KX16 100TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 24Hr

Specifications of PIC24HJ256GP610-I/PT

• Core Size: 16-Bit
• Program Memory Size: 256KB (85.5K x 24)
• Core Processor: PIC
• Speed: 40 MIPs
• Connectivity: CAN, I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 32x10b, 32x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TFQFP
• Controller Family/series: PIC24
• No. Of I/o's: 85
• Ram Memory Size: 16KB
• Cpu Speed: 40MIPS
• No. Of Timers: 13
• No. Of Pwm Channels: 8
• Processor Series: PIC24HJ
• Core: PIC
• Data Bus Width: 16 bit
• Data Ram Size: 16 KB
• Interface Type: CAN, I2C, SPI, UART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 85
• Number Of Timers: 13
• 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
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 2 (12 bit, 32 Channel)
• A/d Bit Size: 12 bit
• A/d Channels Available: 32
• Height: 1 mm
• Length: 12 mm
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Width: 12 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 876-1004 - PIC24 BREAKOUT BOARDAC164333 - MODULE SKT FOR PM3 100QFPDM300024 - KIT DEMO DSPICDEM 1.1MA240012 - MODULE PLUG-IN PIC24H 100QFPDV164033 - KIT START EXPLORER 16 MPLAB ICD2DM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

19.0
The PIC24H devices have up to 32 A/D input channels.
These devices also have up to 2 A/D converter mod-
ules (ADCx, where ‘x’ = 1 or 2), each with its own set of
Special Function Registers.
The AD12B bit (ADxCON1<10>) allows each of the
A/D modules to be configured by the user as either a
10-bit, 4-sample/hold A/D (default configuration) or a
12-bit, 1-sample/hold A/D.
19.1
The 10-bit A/D configuration has the following key
features:
• Successive Approximation (SAR) conversion
• Conversion speeds of up to 1.1 Msps
• Up to 32 analog input pins
• External voltage reference input pins
• Simultaneous sampling of up to four analog input
• Automatic Channel Scan mode
• Selectable conversion trigger source
• Selectable Buffer Fill modes
• Four result alignment options (signed/unsigned,
• Operation during CPU Sleep and Idle modes
The 12-bit A/D configuration supports all the above
features, except:
• In the 12-bit configuration, conversion speeds of
• There is only 1 sample/hold amplifier in the 12-bit
Depending on the particular device pinout, the A/D con-
verter can have up to 32 analog input pins, designated
AN0 through AN31. In addition, there are two analog
input pins for external voltage reference connections.
These voltage reference inputs may be shared with
other analog input pins. The actual number of analog
input pins and external voltage reference input config-
uration will depend on the specific device. Refer to the
device data sheet for further details.
A block diagram of the A/D converter is shown in
Figure 19-1.
© 2006 Microchip Technology Inc.
Note:
Note:
pins
fractional/integer)
up to 500 ksps are supported
configuration, so simultaneous sampling of
multiple channels is not supported.
10-BIT/12-BIT A/D CONVERTER
Key Features
This data sheet summarizes the features
of this group of PIC24H devices. It is not
intended to be a comprehensive reference
source. To complement the information in
this data sheet, refer to the “dsPIC30F
Family Reference Manual” (DS70046).
The A/D module needs to be disabled
before modifying the AD12B bit.
Preliminary
19.2
The following configuration steps should be performed.
1.
2.
19.3
If more than one conversion result needs to be buffered
before triggering an interrupt, DMA data transfers can
be used. Both ADC1 and ADC2 can trigger a DMA data
transfer. If ADC1 or ADC2 is selected as the DMA IRQ
source, a DMA transfer occurs when the AD1IF or
AD2IF bit gets set as a result of an ADC1 or ADC2
sample conversion sequence.
The SMPI<3:0> bits (ADxCON2<5:2>) are used to
select how often the DMA RAM buffer pointer is
incremented.
The ADDMABM bit (ADxCON1<12>) determines how
the conversion results are filled in the DMA RAM buffer
area being used for ADC. If this bit is set, DMA buffers
are written in the order of conversion. The module will
provide an address to the DMA channel that is the
same as the address used for the non-DMA
stand-alone buffer. If the ADDMABM bit is cleared, then
DMA buffers are written in Scatter/Gather mode. The
module will provide a scatter/gather address to the
DMA channel, based on the index of the analog input
and the size of the DMA buffer.
Configure the A/D module:
a)
b)
c)
d)
e)
f)
g)
Configure A/D interrupt (if required):
a)
b)
A/D Initialization
Select
(ADxPCFGH<15:0> or ADxPCFGL<15:0>)
Select voltage reference source to match
expected
(ADxCON2<15:13>)
Select the analog conversion clock to
match desired data rate with processor
clock (ADxCON3<5:0>)
Determine how many S/H channels will
be
ADxPCFGH<15:0> or ADxPCFGL<15:0>)
Select the appropriate sample/conversion
sequence
ADxCON3<12:8>)
Select
presented in the buffer (ADxCON1<9:8>)
Turn on A/D module (ADxCON1<15>)
Clear the ADxIF bit
Select A/D interrupt priority
ADC and DMA
used
port
how
range
pins
(ADxCON1<7:5>
conversion
(ADxCON2<9:8>
on
as
PIC24H
DS70175C-page 207
analog
analog
results
inputs
inputs
and
and
are