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Serial Interface
13-8
Serial 0 interrupt mode register
Register symbol: SC0ICR
Address: x'34000804
Purpose: This register selects the sources for transmission interrupts and reception interrupts for serial
interface 0.
Bit No.76543210
Bit SC0
--
SC0
-
SC0
-
SC0
name DMD TI RES RI
Reset 0 0 0 0 0 0 0 0
Access R/W R R/W R/W R R/W R R/W
Bit No. Bit name Description
0 SC0RI Reception interrupt factor selection
0: Reception end 1: Reception end with error
1 — "0" is returned when this bit is read.
2 SC0RES Reception error interrupt factor selection
0: Interrupt request when an overrun, parity, or framing error occurs
1: Interrupt request when a parity error occurs
3 — "0" is returned when this bit is read.
4 SC0TI Transmission interrupt factor selection
0: Transmission end 1: Transmission buffer empty
5 Reserved Setting "1" is prohibited.
6 — "0" is returned when this bit is read.
7 SC0DMD Data output retained during external clock transmission (valid only in clock
synchronous mode)
0: Set data pin "H" at end of transmission
1: Maintain data pin at end of transmission
Serial 0 transmission buffer
Register symbol SC0TXB
Address: x'34000808
Purpose: This register writes the transmission data of serial interface 0.
Bit No.76543210
Bit SC0 SC0 SC0 SC0 SC0 SC0 SC0 SC0
name TXB7 TXB6 TXB5 TXB4 TXB3 TXB2 TXB1 TXB0
Reset 0 0 0 0 0 0 0 0
Access R/W R/W R/W R/W R/W R/W R/W R/W
Data is transmitted by writing it to this buffer.