m3819 Renesas Electronics Corporation., m3819 Datasheet - Page 195

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

3. APPENDIX
Fig. 3.3.5 Structure of Serial I/O automatic transfer control register
Fig. 3.3.6 Structure of Serial I/O automatic transfer interval register
Serial I/O automatic transfer control register
Serial I/O automatic transfer interval register
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 automatic transfer control register (SIOAC) [Address:1A
Serial I/O automatic transfer interval register (SIOAI) [Address:1C
Automatic transfer control bit
Automatic transfer start bit
Transfer mode switch bit
Synchronous clock output
pin selection bit
Nothing is allocated for these bits. These are write disabled bits.
When these bits are read out, the values are "0."
Ti = (n + 2)
Nothing is allocated for these bits. These are write disabled bits.
When these bits are read out, the values are "0."
Ti = a length of transfer interval
Tc = a length of a bit of transfer clock
n = a setting value
3819 Group USER’S MANUAL
Name
Tc
Function
0 : Serial I/O ordinary mode
1 : Automatic transfer mode
0 : Transfer completion
1 : Transferring
0 : Fullduplex (transmit / receive)
1 : Transmit-only mode
0 : S
1 : S
mode
(serial I/O 1 interrupt)
(serial I/O automatic transfer
(starts by writing “1”)
CLK11
CLK12
interrupt)
Function
3.3 Control registers
MITSUBISHI MICROCOMPUTER
3819 Group
16
16
]
]
At reset
At reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R W
R W
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