HD6433935 Hitachi, HD6433935 Datasheet - Page 443

• Manufacturer Part Number: HD6433935
• Description: 8-Bit MICROCONTROLLER
• Manufacturer: Hitachi

SCR31—Serial control register 31
Bit
Initial value
Read/Write
Transmit interrupt enable
0
1
Receive interrupt enable
0
1
Transmit data empty interrupt request (TXI) disabled
Transmit data empty interrupt request (TXI) enabled
Transmit enable
0
1
Receive data full interrupt request (RXI) and receive error interrupt request (ERI) disabled
Receive data full interrupt request (RXI) and receive error interrupt request (ERI) enabled
Receive enable
0
1
Transmit operation disabled (TXD pin is transmit data pin)
Transmit operation enabled (TXD pin is transmit data pin)
Multiprocessor interrupt enable
0
1
Receive operation disabled (RXD pin is I/O port)
Receive operation enabled (RXD pin is receive data pin)
Transmit end interrupt enable
0
1
TIE31
Multiprocessor interrupt request disabled (normal receive operation)
[Clearing conditions]
When data is received in which the multiprocessor bit is set to 1
Multiprocessor interrupt request enabled
The receive interrupt request (RXI), receive error interrupt request (ERI), and setting of the
RDRF, FER, and OER flags in the serial status register (SSR), are disabled until data with
the multiprocessor bit set to 1 is received.
R/W
Clock enable
CKE311
Bit 1
7
0
Transmit end interrupt request (TEI) disabled
Transmit end interrupt request (TEI) enabled
0
0
1
1
CKE310
Bit 0
0
1
0
1
RIE31
R/W
6
0
Communication Mode
Asynchronous
Synchronous
Asynchronous
Synchronous
Asynchronous
Synchronous
Asynchronous
Synchronous
TE31
R/W
5
0
RE31
R/W
4
0
Clock Source
Internal clock
Internal clock
Internal clock
Reserved (Do not specify this combination)
External clock
External clock
Reserved (Do not specify this combination)
Reserved (Do not specify this combination)
Description
MPIE31
R/W
3
0
TEIE31
H'9A
R/W
2
0
SCK Pin Function
I/O port
Serial clock output
Clock output
Clock input
Serial clock input
3
CKE311
R/W
1
0
CKE310
R/W
0
0
SCI31
431