Datasheet

PIC24FJXXXGA1/GB1
DS39907A-page 48 © 2007 Microchip Technology Inc.
PIC24FJ128GB108 Disabled CFGB + SUM(0:1F7F9) TBD TBD
Enabled 0 TBD TBD
PIC24FJ192GB108 Disabled CFGB + SUM(0:0157FB)
TBD TBD
Enabled 0
TBD TBD
PIC24FJ256GB108 Disabled CFGB + SUM(0:0157FB)
TBD TBD
Enabled 0
TBD TBD
PIC24FJ64GB110 Disabled CFGB + SUM(0:ABF9) TBD TBD
Enabled 0 TBD TBD
PIC24FJ128GB110 Disabled CFGB + SUM(0:1F7F9) TBD TBD
Enabled 0 TBD TBD
PIC24FJ192GB110 Disabled CFGB + SUM(0:20BF9) TBD TBD
Enabled 0 TBD TBD
PIC24FJ256GB110 Disabled CFGB + SUM(0:2ABF9) TBD TBD
Enabled 0 TBD TBD
TABLE 6-4: CHECKSUM COMPUTATION (CONTINUED)
Device
Read Code
Protection
Checksum Computation
Erased
Checksum
Value
Checksum with
0xAAAAAA at 0x0
and Last Code
Address
Legend: Item
Description
SUM[a:b] = Byte sum of locations, a to b inclusive (all 3 bytes of code memory)
CFGB = CFGB = Configuration Block (masked) Byte sum of (CW1 & 0x7BDF + CW2 & 0xF7FF +
CW3 & 0xE1FF)
TBD = To Be Determined
Note: CW1 address is last location of implemented program memory; CW2 is (last location – 2); CW3 is (last
location – 4).