SB16C1058-TQFP128 IK Semicon Co., Ltd, SB16C1058-TQFP128 Datasheet - Page 35
SB16C1058-TQFP128
Manufacturer Part Number
SB16C1058-TQFP128
Description
Octal-uart Controller With 256-byte Fifo
Manufacturer
IK Semicon Co., Ltd
Datasheet
1.SB16C1058-TQFP128.pdf
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7.3 Interrupt Enable Register (IER, Page 0)
IER enables each of the seven types of Interrupt, namely receive data ready, transmit
empty, line status, modem status, Xoff received, NRTS state transition from low to high,
and NCTS state transition from low to high. All interrupts are disabled if bit[7:0] are
cleared. Interrupt is enabled by setting appropriate bits. Table 10 shows IER bit settings.
Table 10:
Bit
7
6
5
4
3
2
1
0
Symbol
IER[7]
IER[6]
IER[5]
IER[4]
IER[3]
IER[2]
IER[1]
IER[0]
Interrupt Enable Register Description
Description
NCTS Interrupt Enable (Requires EFR[4] = 1).
NRTS Interrupt Enable (Requires EFR[4] = 1).
Xoff Interrupt Enable (Requires EFR[4] = 1).
Sleep Mode Enable (Requires EFR[4] = 1).
Modem Status Interrupt Enable
Receive Line Status Interrupt Enable
Transmit Holding Register Interrupt Enable
Receive Buffer Register Interrupt Enable
OCTAL UART WITH 256-BYTE FIFO
0 : Disable the NCTS interrupt (default).
1 : Enable the NCTS interrupt.
0 : Disable the NRTS interrupt (default).
1 : Enable the NRTS interrupt.
0 : Disable the Xoff interrupt (default).
1 : Enable the Xoff interrupt.
0 : Disable sleep mode (default).
1 : Enable sleep mode.
0 : Disable the modem status register interrupt (default).
1: Enable the modem status register interrupt.
0 : Disable the receive line status interrupt (default).
1: Enable the receive line status interrupt.
0 : Disable the THR interrupt (default).
1 : Enable the THR interrupt.
0 : Disable the RBR interrupt (default).
1 : Enable the RBR interrupt.
IN16C1058
JUNE 2009
REV 1.0
35
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