INTERNAL SPECIFICATIONS

S1 S2 S3 S4 S5 S6 S1 S2 S3 S4 S5 S6

XTAL1

ALE

OUTPUT:

RXD (DATA OUTPUT)

TXD (SHIFT CLOCK) INPUT:

READ RXD

TXD (SHIFT CLOCK)

Figure 4-30 Serial port (mode 0) timing and corresponding basic MSM80C154S/ MSM83C154S timing

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Sonic Alert msm85c154hvs, msm83c154s, msm80154s user manual 109