sc9s12hy64j0vllr Freescale Semiconductor, Inc, sc9s12hy64j0vllr Datasheet - Page 577

• Manufacturer Part Number: sc9s12hy64j0vllr
• Description: S12 Microcontrollers Mcu 16-bit Hcs12 Cisc 32kb Flash 5v Tray
• Manufacturer: Freescale Semiconductor, Inc

16.3.2.7
The FSTAT register reports the operational status of the Flash module.
1
CCIF, ACCERR, and FPVIOL bits are readable and writable, MGBUSY and MGSTAT bits are readable
but not writable, while remaining bits read 0 and are not writable.
Freescale Semiconductor
Reset value can deviate from the value shown if a double bit fault is detected during the reset sequence (see
ACCERR
Offset Module Base + 0x0006
DFDIE
Reset
SFDIE
FPVIOL
Field
Field
CCIF
1
0
W
7
5
4
R
CCIF
Double Bit Fault Detect Interrupt Enable — The DFDIE bit controls interrupt generation when a double bit fault
is detected during a Flash block read operation.
0 DFDIF interrupt disabled
1 An interrupt will be requested whenever the DFDIF flag is set (see
Single Bit Fault Detect Interrupt Enable — The SFDIE bit controls interrupt generation when a single bit fault
is detected during a Flash block read operation.
0 SFDIF interrupt disabled whenever the SFDIF flag is set (see
1 An interrupt will be requested whenever the SFDIF flag is set (see
Flash Status Register (FSTAT)
1
7
Command Complete Interrupt Flag — The CCIF flag indicates that a Flash command has completed. The
CCIF flag is cleared by writing a 1 to CCIF to launch a command and CCIF will stay low until command
completion or command violation.
0 Flash command in progress
1 Flash command has completed
Flash Access Error Flag — The ACCERR bit indicates an illegal access has occurred to the Flash memory
caused by either a violation of the command write sequence (see
command. While ACCERR is set, the CCIF flag cannot be cleared to launch a command. The ACCERR bit is
cleared by writing a 1 to ACCERR. Writing a 0 to the ACCERR bit has no effect on ACCERR.
0 No access error detected
1 Access error detected
Flash Protection Violation Flag —The FPVIOL bit indicates an attempt was made to program or erase an
address in a protected area of P-Flash or D-Flash memory during a command write sequence. The FPVIOL
bit is cleared by writing a 1 to FPVIOL. Writing a 0 to the FPVIOL bit has no effect on FPVIOL. While FPVIOL
is set, it is not possible to launch a command or start a command write sequence.
0 No protection violation detected
1 Protection violation detected
= Unimplemented or Reserved
0
0
6
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
Figure 16-11. Flash Status Register (FSTAT)
Table 16-13. FERCNFG Field Descriptions
ACCERR
Table 16-14. FSTAT Field Descriptions
0
5
FPVIOL
0
4
Description
Description
MGBUSY
0
3
Section
Section
Section
Section
48 KByte Flash Module (S12FTMRC48K1V1)
RSVD
16.3.2.8)
0
2
16.4.3.2) or issuing an illegal Flash
16.3.2.8)
16.3.2.8)
0
1
1
MGSTAT[1:0]
Section
0
0
1
16.6).
577