MC9S12HY64 Datasheet, PDF (608/792 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

48 KByte Flash Module (S12FTMRC48K1V1)
Register
FSTAT
Table 16-64. Erase D-Flash Sector Command Error Handling
Error Bit
ACCERR
FPVIOL
MGSTAT1
MGSTAT0
Error Condition
Set if CCOBIX[2:0] != 001 at command launch
Set if command not available in current mode (see Table 16-27)
Set if an invalid global address [17:0] is supplied
Set if a misaligned word address is supplied (global address [0] != 0)
Set if the selected area of the D-Flash memory is protected
Set if any errors have been encountered during the verify operation
Set if any non-correctable errors have been encountered during the verify
operation
16.4.6 Interrupts
The Flash module can generate an interrupt when a Flash command operation has completed or when a
Flash command operation has detected an ECC fault.
Table 16-65. Flash Interrupt Sources
Interrupt Source
Flash Command Complete
ECC Double Bit Fault on Flash Read
ECC Single Bit Fault on Flash Read
Interrupt Flag
CCIF
(FSTAT register)
DFDIF
(FERSTAT register)
SFDIF
(FERSTAT register)
Local Enable
CCIE
(FCNFG register)
DFDIE
(FERCNFG register)
SFDIE
(FERCNFG register)
Global (CCR)
Mask
I Bit
I Bit
I Bit
NOTE
Vector addresses and their relative interrupt priority are determined at the
MCU level.
16.4.6.1 Description of Flash Interrupt Operation
The Flash module uses the CCIF flag in combination with the CCIE interrupt enable bit to generate the
Flash command interrupt request. The Flash module uses the DFDIF and SFDIF flags in combination with
the DFDIE and SFDIE interrupt enable bits to generate the Flash error interrupt request. For a detailed
description of the register bits involved, refer to Section 16.3.2.5, “Flash Configuration Register
(FCNFG)”, Section 16.3.2.6, “Flash Error Configuration Register (FERCNFG)”, Section 16.3.2.7, “Flash
Status Register (FSTAT)”, and Section 16.3.2.8, “Flash Error Status Register (FERSTAT)”.
The logic used for generating the Flash module interrupts is shown in Figure 16-27.
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
608
Freescale Semiconductor