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| SC28L194 Datasheet, PDF (44/52 Pages) NXP Semiconductors – Quad UART for 3.3V and 5V supply voltage | |||
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Philips Semiconductors
Quad UART for 3.3V and 5V supply voltage
Preliminary specification
SC28L194
SCLK
CEN
W_RN
ADDRESS
DATA
DACKN
tCH
C1
C2
C3
C4
tRWD
INVALID
INVALID
tRWH
VALID
DATA=00
VALID
INVALID
INVALID
tAH
tCS
tRWS
tAS
tDF
tDD
DACK4DLY
DCAEKNDLY
SD00196
Figure 6. Basic Read Cycle, ASYNC
SCLK
CEN
W_RN
ADDRESS
DATA
DACKN
C1
tCS C2
C3
tCH
INVALID
INVALID
tRWH
VALID
DATA=00
C4
C1
C2
tSTP
VALID
INVALID
INVALID
tRWS
tAS
tAH
tDD
DAKDLY
C4
tDF
DAKDLY
C4 END
Figure 7. Basic Read Cycle, SYNC
SD00197
1998 Sep 21
44
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