pic32mx320f032h Microchip Technology Inc., pic32mx320f032h Datasheet - Page 24

• Manufacturer Part Number: pic32mx320f032h
• Description: 64/100-pin General Purpose And Usb 32-bit Flash Microcontrollers
• Manufacturer: Microchip Technology Inc.

PIC32MX3XX/4XX
TABLE 3-2:
Coprocessor 0 also contains the logic for identifying
and managing exceptions. Exceptions can be caused
by a variety of sources, including alignment errors in
data, external events, or program errors. Table 3-3
shows the exception types in order of priority.
TABLE 3-3:
DS61143F-page 22
Note 1:
Register
Number
DDBL / DDBS
17-22
25-29
Exception
23
24
30
31
Interrupt
DDBL
Reset
AdES
AdEL
AdEL
DINT
CEU
DSS
CpU
DBE
NMI
DBp
DIB
IBE
Sys
2:
Ov
Bp
RI
Tr
Registers used in exception processing.
Registers used during debug.
Register
Name
Reserved
Debug
DEPC
Reserved
ErrorEPC
DESAVE
COPROCESSOR 0 REGISTERS (CONTINUED)
PIC32MX3XX/4XX FAMILY CORE EXCEPTION TYPES
(2)
Assertion MCLR or a Power-On Reset (POR)
EJTAG Debug Single Step
EJTAG Debug Interrupt. Caused by the assertion of the external EJ_DINT input, or by setting the
EjtagBrk bit in the ECR register
Assertion of NMI signal
Assertion of unmasked hardware or software interrupt signal
EJTAG debug hardware instruction break matched
Fetch address alignment error
Fetch reference to protected address
Instruction fetch bus error
EJTAG Breakpoint (execution of SDBBP instruction)
Execution of SYSCALL instruction
Execution of BREAK instruction
Execution of a Reserved Instruction
Execution of a coprocessor instruction for a coprocessor that is not enabled
Execution of a CorExtend instruction when CorExtend is not enabled
Execution of an arithmetic instruction that overflowed
Execution of a trap (when trap condition is true)
EJTAG Data Address Break (address only) or EJTAG Data Value Break on Store (address + value)
Load address alignment error
Load reference to protected address
Store address alignment error
Store to protected address
Load or store bus error
EJTAG data hardware breakpoint matched in load data compare
(2)
(2)
(1)
Function
Reserved in the PIC32MX3XX/4XX Family core
Debug control and exception status
Program counter at last debug exception
Reserved in the PIC32MX3XX/4XX Family core
Program counter at last error
Debug handler scratchpad register
Preliminary
Description
© 2009 Microchip Technology Inc.