At83c26, Interrupts – Rainbow Electronics AT83C26 User Manual
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7511B–SCR–10/05
AT83C26
Figure 20. Transparent Mode Description
Full transparent mode on SCn interfaces (n= 3, 4, 5)
The transparent mode with A2/CK is also available for SC3, SC4 and SC5 interfaces without
CC4 and CC8.
Figure 21. Transparent Mode Description
Interrupts
The INT output is High by default. INT is driven Low by at least one of the following event:
–
INSERT1 or INSERT2 bits set (card insertion/extraction or bit set by software)
–
VCARD_INTn (n=1,2,3,4,5) bits set (the DC/DC A or LDO2 to LDO5 output voltage
has settled)
–
VDCB_INT bit set (the DC/DC B output voltage has settled)
–
over-current detection on CVCC1
–
VCARDERRn bit set (out of range voltage on CVCCn or bit set by software)
(n=1,2,3,4,5)
–
ATRERRn bit set (no ATR before the card clock counter overflows or bit set by
software) (n=1,2,3,4,5)
CCLKn
CRSTn
CIOn
I/O1
A2/CK
SMART CARD
CCLK
CC4
Micro controller
CC8
CIO
AUX1
AUX2
CC4n
CC8n
AT83C26
A1/RST
CRST
CCLKn
CRSTn
CIOn
I/O2
A2/CK
SIM/SAM
CCLK
Micro controller
CIO
AT83C26