16-8
MB86R02 ‘Jade-D’ Hardware Manual V1.64
16.4.2.
Data Formats
16.4.2.1.
Host Interface (clock timing and phase)
"H"
"L"
"L"
"L"
"H"
"L"
"L"
"L"
Time when HOSTIF
captures DI.
Time when HOSTIF
outputs DO.
(Clock Phase and Polarity : CPOL=0 , CPHA=0)
HOST SCK
HOST XCS
HOST DI
HOST DO
necessary for
(minimum) 2 cycle/HCLK.
Figure 16-9 Host Interface (clock timing and phase)
16.4.2.2.
Reset Frame
The arrangement of the data byte inputs from the host CPU is a specific one. The byte counter of
the EXTIF unit will malfunction if the HOSTIF module is initialized while the host CPU is
communicating with the HOSTIF module (for example due to an initialization by the MB86R02's
watchdog timer (WDT) or by initialization via a RST-CMD). In this case, the arrangement of the
data bytes would be mistakenly interpreted. It is therefore necessary to use a reset frame when
initializing when the HOSTIF module is communicating.
HOST XCS
When the SCLK never reaches the period
when the XCS signal is active
First
byte (CMD byte)
Condition of XCS width
Hold time
Reset Frame
HOST SCK
The byte counter of
EXTIF is initialized.
necessary for
(minimum) 2 cycle/HCLK.
Ex.) 25nS/HCLK=83MHz
50nS/HCLK=41MHz
100nS/HCLK=20MHz
necessary for
(minimum) 6 cycle/HCLK.
Ex.) 75nS/HCLK=83MHz
150nS/HCLK=41MHz
300nS/HCLK=20MHz
Figure 16-10 Reset Frame
16.4.2.3.
Signal input format from the host CPU
The phase relationships of the HOST SCK, HOST XCS, and HOST DI signals is as follows.
Summary of Contents for MB86R02
Page 24: ...MB86R02 Jade D Hardware Manual V1 64 ...
Page 76: ...3 2 MB86R02 Jade D Hardware Manual V1 64 Figure 3 1 Memory map 1 ...
Page 77: ...3 3 MB86R02 Jade D Hardware Manual V1 64 Figure 3 2 Memory map 2 ...
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Page 214: ...11 7 MB86R02 Jade D Hardware Manual V1 64 15 16 cycles initial value ...
Page 497: ...18 139 MB86R02 Jade D Hardware Manual V1 64 VSYNC is output 1 dot clock faster than HSYNC ...
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Page 682: ...22 2 MB86R02 Jade D Hardware Manual V1 00 FUJITSU PROPRIETARY AND CONFIDENTIAL ...
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