PIC32MX575F256LT-80I/PT Microchip Technology, PIC32MX575F256LT-80I/PT Datasheet - Page 19

• Manufacturer Part Number: PIC32MX575F256LT-80I/PT
• Description: 256KB Flash, 64KB RAM, 80 MHz, USB, 1xCAN, 8 DMA 100 TQFP 12x12x1mm T/R
• Manufacturer: Microchip Technology
• Series: PIC® 32MXr

Specifications of PIC32MX575F256LT-80I/PT

• Core Processor: MIPS32® M4K™
• Core Size: 32-Bit
• Speed: 80MHz
• Connectivity: CAN, I²C, SPI, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 64K 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
• Package / Case: 100-TFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10.0
Before a device can be programmed, it must be placed
in Serial Execution mode.
The procedure for entering Serial Execution mode con-
sists of verifying that the device is not code-protected.
If the device is code-protected, a Chip Erase must be
performed. See 9.0 “Erasing the Device” for details.
FIGURE 10-1:
© 2010 Microchip Technology Inc.
XferData (MCHP_DE_ASSERT_RST)
SendCommand (MTAP_SW_MTAP)
SendCommand (MTAP_COMMAND)
Put MTAP in Command Mode
XferData (MCHP_EN_FLASH)
ENTERING SERIAL
EXECUTION MODE
XferData (MCHP_ASSERT_RST)
Release Reset
Enable Flash
Select MTAP
statusVal = XferData (MCHP_STATUS)
SendCommand (MTAP_COMMAND)
SendCommand (ETAP_EJTAGBOOT)
Put MTAP in Command Mode
SendCommand (MTAP_SW_ETAP)
SendCommand (MTAP_SW_MTAP)
Read Code-Protect Status
Put CPU in Serial Exec Mode
Assert Reset
ENTERING SERIAL
EXECUTION MODE
Select MTAP
Select ETAP
CPS = 1
2-Wire
Yes
No
Set MCLR High
Must Erase First
Cannot Enter
2-Wire
4-Wire
10.1
The following steps are required to enter Serial
Execution mode:
1.
2.
3.
4.
5.
6.
7.
10.2
The following steps are required to enter Serial
Execution mode:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. XferData (MCHP_DE_ASSERT_RST).
11. XferData (MCHP_EN_FLASH).
SendCommand (MTAP_SW_MTAP).
SendCommand (MTAP_COMMAND).
statusVal = XferData (MCHP_STATUS).
If CPS (statusVal<7>) is not ‘1’, the device must
be erased first.
SendCommand (MTAP_SW_ETAP).
SendCommand (ETAP_EJTAGBOOT).
Set MCLR high.
SendCommand (MTAP_SW_MTAP).
SendCommand (MTAP_COMMAND).
statusVal = XferData (MCHP_STATUS).
If CPS (statusVal<7>) is not ‘1’, the device must
be erased first.
XferData (MCHP_ASSERT_RST).
SendCommand (MTAP_SW_ETAP).
SendCommand (ETAP_EJTAGBOOT).
SendCommand (MTAP_SW_MTAP).
SendCommand (MTAP_COMMAND).
4-Wire Interface
2-Wire Interface
PIC32MX
DS61145G-page 19