MA101 Datasheet, PDF (17/30 Pages) Megawin Technology Co., Ltd – Low-speed USB Specification version 1.1 compliance

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MA101
Datasheet Version 1.02
SPI_CLK
tHIGH
tLOW
tDO
tDH
SPI_MOSI
SPI_MISO
tRead
Figure 5-5 : SPI Data Read/Write diagram
SPI AC electrical characteristics
Clock_Rate Data Out (tDO) Data Out (tDH) Data In (tREAD)
0x00
0x01
1.7~1.8 us
1.7~1.8 us
7.4~7.6 us
8.8 us
4.5~5.1 us
4.5~5.1 us
0x02
0x03
0x04
...
0xFF
1.7~1.8 us
1.7~1.8 us
1.7~1.8 us
1.7~1.8 us
10.4~10.6 us
12.2
13.7~13.8 us
430 us
4.5~5.1 us
4.5~5.1 us
4.5~5.1 us
4.5~5.1 us
Note: This parameter is characterized but not 100% tested.
Average Clock Rate
Clock_Rate
0x00
Clock High
Period (tHIGH)
9.2 us
0x01
10.5 us
0x02
12.2 us
0x03
13.9 us
0x04
...
0xFF
15.6 us
434 us
Clock Low
Period (tLOW)
9.2 us
10.6 us
12.2 us
13.9 us
15.5 us
434 us
bps
54.35K
47.39K
40.98K
35.97K
32.15K
1.15K
5.3.5 Port Change Report
At SPI mode, if Port 1.4 or Port 1.5 or Port 1.7 changes, it does not generate Port Change Report. It means it
will not detect 1 on the return value at Port 1.4 or Port 1.5 or Port 1.7 on the MA101_GetPortStatus() function.
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