Datasheet

© 2007-2011 Microchip Technology Inc. DS70264E-page 175
dsPIC33FJ12GP201/202
19.0 SPECIAL FEATURES
Microchip dsPIC33FJ12GP201/202 devices include
several features intended to maximize application flex-
ibility and reliability, and minimize cost through elimina-
tion of external components. These are:
• Flexible configuration
• Watchdog Timer (WDT)
• Code Protection and CodeGuard™ Security
• JTAG Boundary Scan Interface
• In-Circuit Serial Programming™ (ICSP™)
programming capability
• In-Circuit emulation
19.1 Configuration Bits
dsPIC33FJ12GP201/202 devices provide nonvolatile
memory implementation for device configuration bits.
Refer to Section 25. “Device Configuration”
(DS70194) of 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 Device Configuration register map is shown in
Table 19-1.
The individual Configuration bit descriptions for the
Configuration registers are shown in Table 19-2.
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.
TABLE 19-1: DEVICE CONFIGURATION REGISTER MAP
Note: This data sheet summarizes the features
of the dsPIC33FJ12GP201/202 devices.
It is not intended to be a comprehensive
reference source. To complement the
information 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.
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 Reserved
(1)
ALTI2C —FPWRT<2:0>
0xF8000E FICD Reserved
(2)
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: Reserved bits read as ‘1’ and must be programmed as ‘1’.
2: These bits are reserved for use by development tools and must be programmed as ‘1’.