M58BW032BB45T3T STMICROELECTRONICS [STMicroelectronics], M58BW032BB45T3T Datasheet - Page 19

• Manufacturer Part Number: M58BW032BB45T3T
• Description: 32 Mbit (1Mb x32, Boot Block, Burst) 3.3V Supply Flash Memory
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Table 6. Burst Configuration Register
Note: 1. X latencies can be calculated as: (t
M13-M11
2. Y latencies can be calculated as: t
3. t
M7-M4
M2-M0
M15
M14
M10
M9
M8
M3
Bit
is the clock period),
SYSTEM MARGIN
Read Select
Standby Disable
Reserved
Y-Latency
Valid Data Ready
Reserved
Wrapping
Burst Length
X-Latency
is the time margin required for the calculation.
Description
,
where t
(2)
(1)
LLKH
M58BW032BT, M58BW032BB, M58BW032DT, M58BW032DB
is the value given by the master microcontroller timing specifications.
KHQV
AVQV
+ t
– t
0
1
0
1
001
010
011
100
101
110
0
1
0
1
0
1
001
010
111
SYSTEM MARGIN
Value
LLKH
+ t
KHQV
Synchronous Burst Read
Asynchronous Read (Default at power-up)
Standby Mode Enabled (Default at power-up)
Standby Mode Disabled
3
4
5
6
7
8
One Burst Clock cycle
Two Burst Clock cycles
R valid Low during valid Burst Clock edge
R valid Low one data cycle before valid Burst Clock edge
Wrap
No Wrap
4 Double-Words
8 Double-Words
Continuous
) + t
+ t
SYSTEM MARGIN
KHQV
< Y t
K
.
< (X -1) t
Description
K.
(X is an integer number from 4 to 8 and t
19/60
K