MCP414X/416X/424X/426X
DS22059B-page 52
2008 Microchip Technology Inc.
7.6.2
CONTINUOUS READS
Continuous reads allows 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
D
2
A
D
1
A
D
0
1
XXXX XXXXXX
111111 1* D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
A
D
3
A
D
2
A
D
1
A
D
0
1
XXXX XXXXXX
111111 1* D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
A
D
3
A
D
2
A
D
1
A
D
0
1
XXXX XXXXXX
111111 1* D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
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 (VIH).