Datasheet
MCP414X/416X/424X/426X
DS22059B-page 50 © 2008 Microchip Technology Inc.
7.5.3 CONTINUOUS WRITES TO
VOLATILE MEMORY
Continuous writes are possible only when writing to the
volatile memory registers (address 00h, 01h, and 04h).
Figure 7-3 shows the sequence for three continuous
writes. The writes do not need to be to the same volatile
memory address.
7.5.4 CONTINUOUS WRITES TO
NON-VOLATILE MEMORY
Continuous writes to non-volatile memory are not
allowed, and attempts to do so will result in a command
error (CMDERR) condition.
FIGURE 7-3: Continuous Write Sequence (Volatile Memory only).
A
D
3
A
D
2
A
D
1
A
D
0
00D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
1111111*111111111
A
D
3
A
D
2
A
D
1
A
D
0
00D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
1111111*111111111
A
D
3
A
D
2
A
D
1
A
D
0
00D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
1111111*111111111
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
).