Table of Contents
Advertisement
Functional description
Table 11-4. Flash commands by mode and security state (continued)
FCMD
0x0A
0x0B
0x0C
0x0D
0x0E
1. Unsecured User mode
2. Secured User mode
11.3.6 Flash interrupts
The flash module can generate an interrupt when a flash command operation has
completed.
Interrupt source
Flash command complete
11.3.6.1 Description of flash interrupt operation
The flash module uses the FSTAT[CCIF] flag in combination with the FCNFG[CCIE]
interrupt enable bit to generate the flash command interrupt request.
The logic used for generating the flash module interrupts is shown in the following
figure.
Figure 11-2. Flash module interrupts implementation
162
Command
Erase flash sector
Unsecure flash
Verify backdoor access key
Set user margin level
Set factory margin level
Table 11-5. Flash interrupt source
Interrupt flag
CCIF
(FSTAT register)
Flash command
interrupt request
CCIE
CCIF
MC9S08SU16 Reference Manual, Rev. 5, 4/2017
Unsecured
1
U
*
*
*
*
*
Local enable
Global (CCR) mask
CCIE
(FCNFG register)
NXP Semiconductors
Secured
2
U
*
*
*
*
*
I Bit
Advertisement
Table of Contents
