M30622 Mitsubishi, M30622 Datasheet - Page 126

• Manufacturer Part Number: M30622
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: Mitsubishi

Clock synchronous serial I/O mode
Figure 1.19.11. Polarity of transfer clock
Figure 1.19.12. Transfer format
• When CLK polarity select bit = “0”
• When CLK polarity select bit = “1”
R
CLK
T
CLK
T
R
(a) Polarity select function
(b) LSB first/MSB first select function
X
X
X
X
D
D
D
D
• When transfer format select bit = “0”
• When transfer format select bit = “1”
As shown in Figure 1.19.11, the CLK polarity select bit (bit 6 at addresses 03A4
allows selection of the polarity of the transfer clock.
As shown in Figure 1.19.12, when the transfer format select bit (bit 7 at addresses 03A4
037C
R
Tentative Specifications REV.A
CLK
T
R
CLK
T
i
i
i
i
i
i
X
X
X
X
D
D
D
S
D
i
i
i
i
i
i
pecifications in this manual are tentative and subject to change.
16
) = “0”, the transfer format is “LSB first”; when the bit = “1”, the transfer format is “MSB first”.
D0
D
D
D
0
0
0
D0
D
D
D
0
7
7
D
D
D
D
1
1
1
1
D
D
D
D
1
6
1
6
D
D
D
D
2
2
2
2
D
D
D
D
2
5
2
5
D
D
D
D
3
3
3
3
D
D
D
D
Note: This applies when the CLK polarity select bit = “0”.
D
D
D
3
4
D
3
4
4
4
4
4
D
D
D
D
D
D
D
D
4
4
3
3
5
5
5
5
126
D
D
D
D
D
D
D
D
5
2
5
2
6
6
6
6
D
D
D
D
D
D
D
D
6
1
6
1
7
7
7
7
D
D
D
D
7
0
7
0
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Note 2: The CLK pin level when not
Note 1: The CLK pin level when not
transferring data is “L”.
transferring data is “H”.
Mitsubishi microcomputers
MSB first
LSB first
16
M16C / 62T Group
, 03AC
16
16
, 03AC
, 037C
16
16
)
,