DSPIC33FJMC202ESS datasheet(211/330 Pages) MICROCHIP

211 / 330 page

DS70283K-page 211

dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304

21.0 SPECIAL FEATURES

dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304

devices include several features intended to maximize

application flexibility and reliability, and minimize cost

through elimination of external components. These are:

• Flexible configuration

• Watchdog Timer (WDT)

• Code Protection and CodeGuard™ Security

• JTAG Boundary Scan Interface

• In-Circuit Serial Programming™ (ICSP™)

• In-Circuit emulation

21.1

Configuration Bits

dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304

devices provide nonvolatile memory implementation

for device configuration bits. Refer to Section 25.

“Device

Configuration”

(DS70194)

the

“dsPIC33F/PIC24H Family Reference Manual”, for

more information on this implementation.

The Configuration bits can be programmed (read as

‘0’), or left unprogrammed (read as ‘1’), to select

various device configurations. These bits are mapped

starting at program memory location 0xF80000.

The individual Configuration bit descriptions for the

Configuration registers are shown in Table 21-2.

Note that address 0xF80000 is beyond the user program

memory space. It belongs to the configuration memory

space (0x800000-0xFFFFFF), which can only be

accessed using table reads and table writes.

The Device Configuration register map is shown in

Table 21-1.

Note:

This data sheet summarizes the features

of the dsPIC33FJ32MC202/204 and

dsPIC33FJ16MC304 devices. It is not

intended to be a comprehensive refer-

ence source. To complement the informa-

tion in this data sheet, refer to the

“dsPIC33F/PIC24H

Family

Reference

Manual”. Please see the Microchip web

site (www.microchip.com) for the latest

dsPIC33F/PIC24H

Family

Reference

Manual sections.

TABLE 21-1:

DEVICE CONFIGURATION REGISTER MAP

Address

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

0xF80000 FBS

—

BSS<2:0>

BWRP

0xF80002 RESERVED

—

0xF80004 FGS

—

GSS<1:0>

GWRP

0xF80006 FOSCSEL

IESO

—

—FNOSC<2:0>

0xF80008 FOSC

FCKSM<1:0>

IOL1WAY

—

OSCIOFNC POSCMD<1:0>

0xF8000A FWDT

FWDTEN WINDIS

—

WDTPRE

WDTPOST<3:0>

0xF8000C FPOR

PWMPIN

HPOL

LPOL

ALTI2C

—FPWRT<2:0>

0xF8000E FICD

Reserved(1)

JTAGEN

—

—ICS<1:0>

0xF80010 FUID0

User Unit ID Byte 0

0xF80012 FUID1

User Unit ID Byte 1

0xF80014 FUID2

User Unit ID Byte 2

0xF80016 FUID3

User Unit ID Byte 3

Legend: — = unimplemented bit, read as ‘0’.

Note 1: These bits are reserved for use by development tools and must be programmed as ‘1’.

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