ST92F150-DBE STMicroelectronics, ST92F150-DBE Datasheet - Page 145

• Manufacturer Part Number: ST92F150-DBE
• Description: MCU, MPU & DSP Development Tools ST9 Dedication Board
• Manufacturer: STMicroelectronics

Specifications of ST92F150-DBE

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

EXTERNAL MEMORY SIGNALS (Cont’d)
Figure 76. External memory Read/Write with a programmable wait
SYSTEM
CLOCK
AS (MC=0)
ALE (MC=1)
(AS pin)
P1, P9
DS (MC=0)
P0
RW (MC=0)
OEN (MC=1)
(DS pin)
WEN (MC=1)
(RW pin)
P0
RW (MC=0)
OEN (MC=1)
(DS pin)
WEN (MC=1)
(RW pin)
ADDRESS
T1
ADDRESS
NO WAIT CYCLE
ADDRESS
ST92F124/F150/F250 - EXTERNAL MEMORY INTERFACE (EXTMI)
DATA IN
T2
DATA OUT
AS STRETCH
1 AS WAIT CYCLE
ADDRESS
ADDRESS
ADDRESS
TWA
T1
TAVWL
DS STRETCH
1 DS WAIT CYCLE
TAVQV
TAVWH
DATA
TWD
T2
DATA IN
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