AT83EC5123 ATMEL Corporation, AT83EC5123 Datasheet - Page 133
AT83EC5123
Manufacturer Part Number
AT83EC5123
Description
(AT8xx512x) Smart Card Reader ICs
Manufacturer
ATMEL Corporation
Datasheet
1.AT83EC5123.pdf
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4202B–SCR–07/03
Table 101. Interrupt Enable Register - ISEL (S:A1h)
Reset Value = 0000 0000b
Number
CPLEV
Bit
7
6
5
4
3
2
1
0
7
Mnemonic
PRESEN
PRESIT
CPLEV
OELEV
OEEN
RXEN
RXIT
Bit
6
-
-
Description
Card presence detection level
This bit indicates which CPRES level will bring about an interrupt
Set this bit to indicate that Card Presence IT will appear if CPRES is at high
level.
Clear this bit to indicate that Card Presence IT will appear if CPRES is at low
level.
Reserved
The value read from this bit is indeterminate. Do not change this bit.
Card presence detection interrupt flag
Set by hardware
Must be cleared by software
Received data interrupt flag
Set by hardware
Must be cleared by software
OE/INT1 signal active level
Set this bit to indicate that high level is active.
Clear this bit to indicate that low level is active.
OE/INT1 Interrupt Disable bit
Clear to disable INT1 interrupt
Set to enable INT1 interrupt
Card presence detection Interrupt Enable bit
Clear to disable the card presence detection interrupt coming from SCIB.
Set to enable the card presence detection interrupt coming from SCIB.
Received data Interrupt Enable bit
Clear to disable the RxD interrupt.
Set to enable the RxD interrupt (a minimal bit width of 100 s is required to
wake up from power-down) .
PRESIT
5
RXIT
4
OELEV
3
OEEN
2
AT8xC5122/23
PRESEN
1
RXEN
0
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