Rainbow Electronics AT89C5122 - Manual (Page 83)

83
AT8xC5122/23
4202E–SCR–06/06
Reset Value = 0X00 0000b
Table 48. Smart Card UART Interrupt Enabling Register - SCIER (S:AEh, SCRS=1)
7 6 5 4 3 2 1 0
ESCTBI - ICARDER EVCARDER ESCWTI ESCTI ESCRI ESCPI
Bit Number Bit Mnemonic Description
7 ESCTBI
UART Transmit Buffer Empty Interrupt Enabled
Clear this bit to disable the Smart Card UART Transmit Buffer Empty interrupt.
Set this bit to enable the Smart Card UART Transmit Buffer Empty interrupt.
6 -
Reserved
The value read from this bit is indeterminate. Do not change this bit.
5 ICARDER
Card Current Overflow Interrupt Enabled
Clear this bit to disable the Card Current Overflow interrupt.
Set this bit to enable the Card Current Overflow interrupt.
4 EVCARDER
Card Voltage Error Interrupt Enabled
Clear this bit to disable the Card Voltage Error interrupt.
Set this bit to enable the Card Voltage Error interrupt.
3 ESCWTI
WaitingTime Counter Timeout Interrupt Enabled
Clear this bit to disable the Waiting Time Counter timeout interrupt.
Set this bit to enable the Waiting Time Counter timeout interrupt.
2 ESCTI
UART Transmitted Character Interrupt Enabled
Clear this bit to disable the Smart Card UART Transmitted Character interrupt.
Set this bit to enable the Smart Card UART Transmitted Character interrupt.
1 ESCRI
UART Received Character Interrupt Enabled
Clear this bit to disable the Smart Card UART Received Character interrupt.
Set this bit to enable the Smart Card UART Received Character interrupt.
0 ESCPI
Character Reception Parity Error Interrupt Enabled
Clear this bit to disable the Smart Card Character Reception Parity Error interrupt.
Set this bit to enable the Smart Card Character Reception Parity Error interrupt.