PIC32MX440F256H-80I/PT Microchip Technology, PIC32MX440F256H-80I/PT Datasheet - Page 504

• Manufacturer Part Number: PIC32MX440F256H-80I/PT
• Description: IC PIC MCU FLASH 256K 64-TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 32MXr

Specifications of PIC32MX440F256H-80I/PT

• Program Memory Type: FLASH
• Program Memory Size: 256KB (256K x 8)
• Package / Case: 64-TFQFP
• Core Processor: MIPS32® M4K™
• Core Size: 32-Bit
• Speed: 80MHz
• Connectivity: I²C, IrDA, LIN, PMP, SPI, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 53
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 2.3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC32MX4xx
• Core: MIPS
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: I2C , SPI , UART
• Maximum Clock Frequency: 80 MHz
• Number Of Programmable I/os: 51
• Number Of Timers: 5 x 16 bit, 1 x 32 bit
• Operating Supply Voltage: 2.3 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, DM320003, DM320002, MA320002
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Controller Family/series: PIC32
• Ram Memory Size: 32KB
• Cpu Speed: 80MHz
• No. Of Timers: 5
• Embedded Interface Type: EUSART, I2C, SPI, USB
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 876-1000 - PIC32 BREAKOUT BOARDAC244003 - TEST BD MPLAB REAL ICE LOOPBACKDM320003 - BOARD DEMO USB PIC32 OTGAC244006 - KIT MPLAB REAL ICE TRACEAC164327 - MODULE SKT FOR 64TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC32MX3XX/4XX
22.4.8
Automatic acquisition control is enabled by setting the
ASAM (AD1CON1<2>) bit. Setting the ASAM bit initi-
ates automatic acquisition, and clearing the SAMP
(AD1CON1<1>) bit terminates sampling and starts
conversion. After the conversion completes, the mod-
ule will automatically return to an acquisition state. The
SAMP bit is automatically set at the start of the acquisi-
tion interval. The user software must time the clearing
of the SAMP bit to ensure adequate acquisition time of
the input signal, understanding that the time between
clearing of the SAMP bit includes the conversion time
as well as the acquisition time. See Example 22-2 for a
code example.
EXAMPLE 22-2:
22.4.9
When SSRC<2:0> = 111, the conversion trigger is
under
(AD1CON3<4:0>) select the number of T
cycles between the start of acquisition and the start of
conversion. This trigger option provides the fastest
conversion rates on multiple channels. After the start of
acquisition, the module will count a number of T
clocks specified by the SAMC bits.
EQUATION 22-1:
SAMC must always be programmed for at least one
clock cycle. See Example 22-1 for a code example.
DS61143C-page 502
{
}
AD1PCFG = 0xFF7F;
AD1CON1 = 0x0004;
AD1CHS = 0x00070000;
AD1CSSL = 0;
AD1CON3 = 0x0002;
AD1CON2 = 0;
AD1CON1SET = 0x8000;
while (1)
DelayNmSec(100);
AD1CON1SET = 0x0002;
while (!(AD1CON1 & 0x0001));// conversion done?
ADCValue = ADC1BUF0;
ADC
AUTOMATIC ACQUISITION
CLOCKED CONVERSION TRIGGER
T
SMP
clock
= SAMC<4:0>* T
CONVERTING 1 CHANNEL, AUTOMATIC SAMPLE START, MANUAL
CONVERSION START CODE
CLOCKED CONVERSION
TRIGGER TIME
control.
The
AD
// all PORTB = Digital but RB7 = analog
// ASAM bit = 1 implies acquisition ..
// starts immediately after last
// conversion is done
// Connect RB7/AN7 as CH0 input
// in this example RB7/AN7 is the input
// Sample time manual, Tad = 6 T
// turn ADC ON
// repeat continuously
// sample for 100 mS
// start Converting
// yes then get ADC value
// repeat
SAMC
AD
clock
Preliminary
bits
AD
PB
..
© 2008 Microchip Technology Inc.