3.3.4. SCICR2: [3] (+0x0c)

SCICR2 is control register 2 and is a write-only register used to initiate activation, deactivation and warm reset events. If a write occurs during the deactivation sequence, it is ignored. At any other time, a 1 written to the FINISH bit immediately starts the deactivation sequence. Table 3.5 shows bit assignments for SCICR2.

Note

Writes to this register should be performed only during the appropriate phase of the card session. Writes performed in a card phase are not internally latched and stored for use in subsequent phases. The software can write to the STARTUP bit only after a valid card has been found to be present. Writes when the card is not present will be ignored by the hardware. The software can write to the WRESET bit only after the activation sequence is over. The software can write to the FINISH bit only after a valid card has been found to be present in the system.

Table 3.5. SCICR2 register write bits

Bits

Name

Type

Function

2

WRESET

Write

Writing a 1 to this bit initiates a warm reset.

1

FINISH

Write

Writing a 1 to this bit deactivates the card.

0

STARTUP

Write

Writing a 1 to this bit starts the activation of the card.

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