20-10
MC9328MX1 Reference Manual
MOTOROLA
Multimedia Card/Secure Digital Host Controller Module (MMC/SD)
Figure 20-6. Card Detection Mechanism
20.5.2.3 MMC/SD Module Interrupt Handling
Interrupts generated from the MMC/SD module originate from errors or are status indicators. The
MMC/SD module checks response and data CRCs and the internal watchdog timer. An error is generated
when any of those checks fail. Status indicators include response done, transfer done, and FIFO status.
Interrupt masking and generation is handled in the interrupt handler block.
20.5.3 Logic and Command Interpreters
The two interpreters are built similarly and consist of 3 parts: inner state machine, sub-module controller,
and CRC accelerator.
The command controller handles all interrupts related to the command line (SD_CMD) including
command data sequence generation, command response extraction, CRC generation and checking, and
response time-out. A state machine, logic controller, and CRC accelerator control these functions.
MMC/SD
To System IRQ_B
Detector
CMD3
Summary of Contents for DragonBall MC9328MX1
Page 68: ...1 12 MC9328MX1 Reference Manual MOTOROLA Introduction ...
Page 86: ...2 18 MC9328MX1 Reference Manual MOTOROLA Signal Descriptions and Pin Assignments ...
Page 116: ...3 30 MC9328MX1 Reference Manual MOTOROLA Memory Map ...
Page 126: ...4 10 MC9328MX1 Reference Manual MOTOROLA ARM920T Processor ...
Page 160: ...8 8 MC9328MX1 Reference Manual MOTOROLA System Control ...
Page 272: ...13 32 MC9328MX1 Reference Manual MOTOROLA DMA Controller ...
Page 281: ...Programming Model MOTOROLA Watchdog Timer Module 14 9 ...
Page 282: ...14 10 MC9328MX1 Reference Manual MOTOROLA Watchdog Timer Module ...
Page 300: ...15 18 MC9328MX1 Reference Manual MOTOROLA Analog Signal Processor ASP ...
Page 438: ...18 16 MC9328MX1 Reference Manual MOTOROLA Serial Peripheral Interface Modules SPI 1 and SPI 2 ...
Page 478: ...19 40 MC9328MX1 Reference Manual MOTOROLA LCD Controller ...
Page 574: ...21 32 MC9328MX1 Reference Manual MOTOROLA Memory Stick Host Controller MSHC Module ...
Page 598: ...23 16 MC9328MX1 Reference Manual MOTOROLA Real Time Clock RTC ...
Page 670: ...24 72 MC9328MX1 Reference Manual MOTOROLA SDRAM Memory Controller ...
Page 726: ...25 56 MC9328MX1 Reference Manual MOTOROLA SmartCard Interface Module SIM ...
Page 736: ...26 10 MC9328MX1 Reference Manual MOTOROLA General Purpose Timers ...
Page 854: ...29 18 MC9328MX1 Reference Manual MOTOROLA I2C Module ...
Page 900: ...30 46 MC9328MX1 Reference Manual MOTOROLA Synchronous Serial Interface SSI ...
Page 942: ...32 26 MC9328MX1 Reference Manual MOTOROLA GPIO Module and I O Multiplexer IOMUX ...