Datasheet

© 2009 Microchip Technology Inc. DS22233A-page 55
MCP434X/436X
7.6.2 CONTINUOUS READS
Continuous reads allow the devices memory to be read
quickly. Continuous reads are possible to all memory
locations. If a non-volatile memory write cycle is
occurring, then Read commands may only access the
volatile memory locations.
Figure 7-5 shows the sequence for three continuous
reads. The reads do not need to be to the same
memory address.
FIGURE 7-5: Continuous Read Sequence.
A
D
3
A
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2
A
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1
A
D
0
11XXXXXXXXXX
1111111*D
8
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1
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0
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A
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0
11XXXXXXXXXX
1111111*D
8
D
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0
A
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3
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A
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0
11XXXXXXXXXX
1111111*D
8
D
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0
COMMAND BYTE DATA BYTE
SDI
SDO
Note 1: If a Command Error (CMDERR) occurs at this bit location (*), then all following SDO bits will be
driven low until the CS pin is driven inactive (V
IH
).