m3819 Renesas Electronics Corporation., m3819 Datasheet - Page 103

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

2. APPLICATION
Fig. 2.3.7 Structure of Serial I/O 3 control register
Fig. 2.3.8 Structure of Interrupt request register 1
Serial I/O 3 control register
Interrupt request register 1
b7 b6 b5 b4 b3 b2 b1 b0
b7 b6 b5 b4 b3 b2 b1 b0
B
B
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Serial I/O 3 control register (SIO3CON) [Address:1E
Interrupt request reigster 1 (IREQ1) [Address:3C
Internal synchronous clock
selection bits
Serial I/O 3 port selection bit
(P5
S
(P5
Transfer direction selection
bit
Synchronous clock selection
bit
P5
disable bit
INT
INT
Serial I/O 2 interrupt request
Serial I/O 3 interrupt request
Timer 1 interrupt request bit
Timer 2 interrupt request bit
"0" is set by software, but not "1."
bit
bit
INT
Remote control/counter
overflow interrupt request bit
Serial I/O 1 interrupt request
Serial I/O automatic transfer
interrupt request bit
RDY3
bit
5
5
7
/S
0
1
,P5
)
/ZCR interrupt request bit
interrupt request bit
2
OUT3
output selection bit
interrupt request bit
6
3819 Group USER’S MANUAL
)
Name
Name
P-channel output
b2 b1b0
000 : f(X
001 : f(X
010 : f(X
011 : f(X
110 : f(X
111 : f(X
0 : I/O port
1 : S
0 : I/O port
1 : S
0 : LSB first
1 : MSB first
0 : External clock
1 : Internal clock
0 : CMOS output (in output mode)
1 : N-channel open-drain output
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
(in output mode)
OUT3
RDY3
IN
IN
IN
IN
IN
IN
, S
signal pin
Function
Function
)/8 or f(X
)/16 or f(X
)/32 or f(X
)/64 or f(X
)/128 or f(X
)/256 or f(X
CLK3
16
]
signal pins
16
]
MITSUBISHI MICROCOMPUTER
CIN
CIN
CIN
CIN
CIN
CIN
)/8
)/16
)/32
)/64
)/128
)/256
2.3 Serial I/O
3819 Group
At reset
At reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R W
R W
89