mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 505

• Manufacturer Part Number: mc9s12vr48
• Description: S12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

17.4.7
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.
17.4.7.1
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
(FCNFG)”,
Status Register
The logic used for generating the Flash module interrupts is shown in
17.4.8
The Flash module is not affected if the MCU enters wait mode. The Flash module can recover the MCU
from wait via the CCIF interrupt (see
Freescale Semiconductor
Flash Command Complete
ECC Double Bit Fault on Flash Read
ECC Single Bit Fault on Flash Read
Section 17.3.2.6, “Flash Error Configuration Register
Interrupts
Wait Mode
Description of Flash Interrupt Operation
Vector addresses and their relative interrupt priority are determined at the
MCU level.
(FSTAT)”, and
Interrupt Source
DFDIE
DFDIF
SFDIE
SFDIF
CCIE
CCIF
Figure 17-26. Flash Module Interrupts Implementation
Section 17.3.2.8, “Flash Error Status Register
MC9S12VR Family Reference Manual, Rev. 2.2
Preliminary - Subject to Change Without Notice
Table 17-64. Flash Interrupt Sources
Section 17.4.7,
(FERSTAT register)
(FERSTAT register)
(FSTAT register)
Interrupt Flag
DFDIF
SFDIF
Section 17.3.2.5, “Flash Configuration Register
CCIF
NOTE
“Interrupts”).
Flash Command Interrupt Request
Flash Error Interrupt Request
(FERCNFG register)
(FERCNFG register)
(FCNFG register)
(FERCNFG)”,
Local Enable
64 KByte Flash Module (S12FTMRG64K512V1)
DFDIE
SFDIE
CCIE
Figure
17-26.
(FERSTAT)”.
Section 17.3.2.7, “Flash
Global (CCR)
Mask
I Bit
I Bit
I Bit
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