m3819 Renesas Electronics Corporation., m3819 Datasheet - Page 109

• Manufacturer Part Number: m3819
• Description: Mitsubishi 8-bit Single-chip Microcomputer 740 Family / 38000 Series
• Manufacturer: Renesas Electronics Corporation.

2. APPLICATION
Fig. 2.3.15 Setting of related registers [Output of serial data]
Fig. 2.3.16 Setting of transmission data [Output of serial data]
SIO1CON
SIOAC
P6
P6D
ICON1
IREQ1
SIO1
Serial I/O 1 register (Address:1B
Serial I/O 1 control register (Address:19
Serial I/O automatic transfer control register (Address:1A
Port P6 register (Address:0C
Port P6 direction register (Address:0D
Interrupt control register 1 (Address:3E
Interrupt request register 1 (Address:3C
0
1
1
1
0
0
0
1
0 1
3819 Group USER’S MANUAL
0
0
16
)
16
CMOS output
Serial I/O ordinary mode
Internal synchronous clock : f(X
Use the Serial I/O 1
Not use the S
LSB first
Internal clock
Set P6
Set P6
Serial I/O 1 interrupt : Disabled
Serial I/O 1 interrupt request
(Using this bit, check the completion of
transmitting 1-byte base data (becomes “1”
when the data transmission is completed).)
Set a transmission data.
Check that transmission of the previous data is
completed before writing data (bit 3 of the
Interrupt request register 1 is set to “1”).
)
16
16
16
16
7
7
)
)
output level to “H”
to output mode
)
)
RDY1
signal output function
16
)
MITSUBISHI MICROCOMPUTER
IN
)/32
2.3 Serial I/O
3819 Group
95