Rainbow Electronics AT83C26 - Manual (Page 44)

44
7511B–SCR–10/05
AT83C26
Reset value = reset value depends on hardware configuration
Table 23. SC1_STATUS (Status Byte for SC1)
7 6 5 4 3 2 1 0
CC81 CC41 CARDIN1 VCARD_OK1 X VCARD_INT1 CRST1 CIO1
Bit Number Bit Mnemonic Description
7 CC81
Card CC8
This bit provides the actual level on the CC8 pin when read.
6 CC41
Card CC4
This bit provides the actual level on the CC4 pin when read.
5 CARDIN1
Card Presence Status
This bit is set when a card is detected.
It is cleared otherwise.
4 VCARD_OK1
SC1 Voltage Status
This bit is set by the DCDCA when the output voltage remains within the voltage range specified by
VCARD1[1:0] bits.
It is cleared otherwise.
3 X
2 VCARD_INT1
SC1 Smart Card voltage interrupt
This bit is set when VCARD_OK1 bit is set.
This bit is cleared when read by the micro controller.
1 CRST1
Card RST
This bit provides the actual level on the CRST pin when read.
0 CIO1
Card I/O
This bit provides the actual level on the CIO pin when read.