ST92T163 ST Microelectronics, ST92T163 Datasheet - Page 92

• Manufacturer Part Number: ST92T163
• Description: 8/16-BIT FULL SPEED USB MCU FOR COMPOSITE DEVICES WITH 16 ENDPOINTS
• Manufacturer: ST Microelectronics

ST92163 - EXTERNAL MEMORY INTERFACE (EXTMI)
EXTERNAL MEMORY SIGNALS (Cont’d)
Figure 51. External memory Read/Write with a programmable wait
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MULTIPLEXED
RW (MC=0)
MULTIPLEXED
RW (MC=0)
DS (MC=1)
RW (MC=1)
DS (MC=1)
SYSTEM
RW (MC=1)
AS (MC=0)
DS (MC=0)
CLOCK
ALE (MC=1)
P0
P0
P1
ADDRESS
T1
ADDRESS
NO WAIT CYCLE
ADDRESS
T2
DATA IN
DATA OUT
AS STRETCH
1 AS WAIT CYCLE
ADDRESS
ADDRESS
TWA
ADDRESS
T1
TAVWL
DS STRETCH
1 DS WAIT CYCLE
TAVQV
TAVWH
DATA
TWD
T2
DATA IN