m3819 Renesas Electronics Corporation., m3819 Datasheet - Page 101
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m3819
Manufacturer Part Number
m3819
Description
Mitsubishi 8-bit Single-chip Microcomputer 740 Family / 38000 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.M3819.pdf
(218 pages)
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2. APPLICATION
Fig. 2.3.3 Structure of Serial I/O automatic transfer control register
Fig. 2.3.4 Structure of Serial I/O 1 register
Serial I/O 1 register
Serial I/O automatic transfer control register
b7 b6 b5 b4 b3 b2 b1 b0
b7 b6 b5 b4 b3 b2 b1 b0
B
0
1
2
3
4
5
6
7
B
0
1
2
3
4
5
6
7
Serial I/O 1 register (SIO1) [Address:1B
Serial I/O automatic transfer control register (SIOAC) [Address:1A
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."
A shift register for serial transmission and reception.
At transmitting : Set a transmission data.
At receiving : Store a reception data.
Name
3819 Group USER’S MANUAL
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)
16
]
Function
MITSUBISHI MICROCOMPUTER
2.3 Serial I/O
16
]
3819 Group
At reset
At reset
0
0
0
0
0
?
?
?
?
?
?
?
?
0
0
0
R W
R W
87