AT89C5132-ROTIL datasheet(100/182 Pages) ATMEL

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100

4173E–USB–09/07

AT89C5132

Reset Value = 0000 0000b

Table 82. MMINT Register

MMINT (S:E7h Read Only) – MMC Interrupt Register

CRC16S

CRC16 Status Bit

Transmission mode

Set by hardware when the token response reports a good CRC.

Cleared by hardware when the token response reports a bad CRC.

Reception mode

Set by hardware when the CRC16 received in the data block is correct.

Cleared by hardware when the CRC16 received in the data block is not correct.

DATFS

Data Format Status Bit

Transmission mode

Set by hardware when the format of the token response is correct.

Cleared by hardware when the format of the token response is not correct.

Reception mode

Set by hardware when the format of the frame is correct.

Cleared by hardware when the format of the frame is not correct.

CRC7S

CRC7 Status Bit

Set by hardware when the CRC7 computed in the response is correct.

Cleared by hardware when the CRC7 computed in the response is not correct.

This bit is not relevant when CRCDIS is set.

RESPFS

Response Format Status Bit

Set by hardware when the format of a response is correct.

Cleared by hardware when the format of a response is not correct.

CFLCK

Command FIFO Lock Bit

Set by hardware to signal user not to write in the transmit command FIFO: busy

state.

Cleared by hardware to signal user the transmit command FIFO is available: idle

state.

MCBI

EORI

EOCI

EOFI

F2FI

F1FI

F2EI

F1EI

Bit

Number

Bit

Mnemonic Description

MCBI

MMC Card Busy Interrupt Flag

Set by hardware when the card enters or exits its busy state (when the busy

signal is asserted or deasserted on the data line).

Cleared when reading MMINT.

Bit

Number

Bit

Mnemonic Description

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