STR910FM32X6T STMICROELECTRONICS [STMicroelectronics], STR910FM32X6T Datasheet - Page 55

• Manufacturer Part Number: STR910FM32X6T
• Description: ARM966E-S 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC Motor Control, 4 Timers, ADC, RTC, DMA
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STR91xF
6.11
Notes: 1 EMI Bus clock is an internal clock only and is not available on the EMI bus pin
Notes: 1 ALE_LENGTH = 1 by default (can be programmed to be 2 by setting the bits In the SCU_SCR0
2 EMI_ratio =1/ 2 by default (can be programmed to be 1 by setting the proper bits in the
2 WSTRD = 1Fh by default (RD wait state time = WSTRD x t
3 WSTOEN = 1 by default (RD assertion delay from chip select. WSTOEN can be programmed in
External memory bus timings
V
Table 16.
SCU_CLKCNTR register)
Table 17.
register)
in the EMI_RCRx Register)
the EMI_OECRx Register)
t
t
t
t
t
t
t
t
t
t
BCLK
RCR
RP
RDS
RDH
RAS
RAH
AW
AAH
AAS
DDQ
Symbol
= 2.7 - 3.6V, V
Read to CSn inactive
Read Pulse Width
Read Data Setup Time
Read Data Hold Time
Read Address Setup Time
Read Address Hold Time
ALE pulse width
Address to ALE hold time
Address to ALE setup time
EMI Bus Clock Period
Symbol
EMI read operation
Parameter
DD
= 1.65 - 2V, T
EMI Bus Clock period
A
= -40 / 85 °C unless otherwise specified.
Min
Parameter
(WSTRD-WSTOEN+1)*
(ALE_LENGTH)* t
(ALE_LENGTH)* t
(WSTOEN)* t
BCLK
t
Value
BCLK/2
t
Typ
BCLK
0
4
0
0
, WSTRD can be programmed
BCLK
BCLK
BCLK
1 /(f
Electrical characteristics
HCLK
Value
x EMI_ratio)
Max
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
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