Datasheet
SST26VF032B / SST26VF032BA
DS20005218E-page 20 2013-2016 Microchip Technology Inc.
FIGURE 5-10: BACK-TO-BACK SPI QUAD I/O READ SEQUENCES WHEN M[7:0] = AXH
5.9 Set Burst
The Set Burst command specifies the number of bytes
to be output during a Read Burst command before the
device wraps around. It supports both SPI and SQI pro-
tocols. To set the burst length the host drives CE# low,
sends the Set Burst command cycle (C0H) and one
data cycle, then drives CE# high. After power-up or
reset, the burst length is set to eight Bytes (00H). See
Table 5-2 for burst length data and Figures 5-11 and 5-
12 for the sequences.
FIGURE 5-11: SET BURST LENGTH SEQUENCE (SQI)
A20
A16
A12
A8
A4
A0
M4
M0
CE#
SIO0
SCK
01
9
10
5234
20005218 F50.2
b4
b0
SIO1
SIO2
SIO3
Address
Data
Byte 0
Dummy
867
1211 13
b4
b0
Set
Mode
MSN
LSN
b4
b0
X
X
X
X
A21
A17
A13
A9
A5
A1
M5
M1
b5
b1
b5
b1
b5
b1
X
X
X
X
A22
A18
A14
A10
A6
A2
M6
M2
b6
b2
b6
b2
b6
b2
X
X
X
X
A23
A19
A15
A11
A7
A3
M7
M3
b7
b3
b7
b3
b7
b3
X
X
X
X
Data
Byte
N
Data
Byte
N+1
Note: MSN= Most Significant Nibble, LSN = Least Significant Nibble
TABLE 5-2: BURST LENGTH DATA
Burst Length High Nibble (H0) Low Nibble (L0)
8 Bytes 0h 0h
16 Bytes 0h 1h
32 Bytes 0h 2h
64 Bytes 0h 3h
20005218 F32.0
MODE 3 0 1
SCK
SIO(3:0)
CE#
C1 C0
MODE 0
23
H0 L0
MSN
LSN
Note: MSN = Most Significant Nibble, LSN = Least Significant Nibble, C[1:0]=C0H