AT83EC5123 ATMEL Corporation, AT83EC5123 Datasheet - Page 48
AT83EC5123
Manufacturer Part Number
AT83EC5123
Description
(AT8xx512x) Smart Card Reader ICs
Manufacturer
ATMEL Corporation
Datasheet
1.AT83EC5123.pdf
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AT8xC5122/23
Table 42. Smart Card UART Interrupt Identification Register (Read Only)
SCIIR (S:AEh, SCRS=0)
Reset Value = 0X00 0000b
Number
SCTBI
Bit
7
7
6
5
4
3
2
1
0
Bit Mnemonic Description
VCARDERR
ICARDERR
6
-
SCWTI
SCTBI
SCTI
SCRI
SCPI
-
ICARDERR
5
SCIB Transmit Buffer Interrupt
This bit is set by hardware when the Transmit Buffer is copied to the transmit
shift register of the Smart Card UART.
It is cleared by hardware when this register is read.
Reserved
The value read from this bit is indeterminate. Do not change this bit.
It is cleared by hardware when this register is read.
It is cleared by hardware when this register is read.
Smart Card Wait Timeout Interrupt
This bit is set by hardware when the Smart Card Timer times out.
It is cleared by hardware when this register is read.
Smart Card Transmit Interrupt
This bit is set by hardware when the Smart Card UART completes a
character transmission.
It is cleared by hardware when this register is read.
Smart Card Receive Interrupt
This bit is set by hardware when the Smart Card UART completes a
character reception.
It is cleared by hardware when this register is read.
Smart Card Parity Error Interrupt
This bit is set at the same time as SCTI or SCRI if a parity error is detected.
It is cleared by hardware when this register is read.
Card Current Status
This bit is set when the output current goes out of the current range.
Card Voltage Status
This bit is set when the output voltage goes out of the voltage range specified
by VCARD field.
VCARDERR
4
SCWTI
3
SCTI
2
SCRI
1
4202B–SCR–07/03
SCPI
0
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