MC9S12XDP512CFU
Model | MC9S12XDP512CFU |
Description | 16-BIT, FLASH, 40MHz, MICROCONTROLLER, PQFP80 |
PDF file | Total 1348 pages (File size: 8M) |
Chip Manufacturer | PHILIPS |
Chapter 27 512 Kbyte Flash Module (S12XFTX512K4V2)
Table 27-21. Flash Interrupt Sources
Interrupt Source
Flash Address, Data and Command Buffers empty
All Flash commands completed
Interrupt Flag
CBEIF
(FSTAT register)
CCIF
(FSTAT register)
Local Enable
CBEIE
(FCNFG register)
CCIE
(FCNFG register)
Global (CCR) Mask
I Bit
I Bit
NOTE
Vector addresses and their relative interrupt priority are determined at the
MCU level.
27.8.1
Description of Flash Interrupt Operation
The logic used for generating interrupts is shown in
Figure 27-32.
The Flash module uses the CBEIF and CCIF flags in combination with the CBIE and CCIE enable bits to
generate the Flash command interrupt request.
CBEIF
CBEIE
Flash Command Interrupt Request
CCIF
CCIE
Figure 27-32. Flash Interrupt Implementation
For a detailed description of the register bits, refer to
Section 27.3.2.4, “Flash Configuration Register
(FCNFG)”
and
Section 27.3.2.6, “Flash Status Register (FSTAT)”
.
MC9S12XDP512 Data Sheet, Rev. 2.21
1148
Freescale Semiconductor