SERCON816

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3.5.4 Read Access of Control Registers

Figure 8. Read Access of Control Registers

Note: 1. Setup time input signals to falling edge RDN (Intel or Motorola mode with low active strobe) or rising edge RDN (Motorola mode

with high active strobe)

Symbol

Parameter

Min.

Typ.

Max.

Unit

Setup time A6-0, (Note 1)

10

ns

Setup time BHEN, PCSN0, PCS1, DMAACKNR, WRN (only

Motorola mode),

(Note 1)

0ns

Hold time A6-0, BHEN, PCSN0, PCS1, DMAACKNR, WRN

(only Motorola mode) to rising edge RDN (Intel Motorola

mode with low active strobe) or falling edge RDN (Motorola

mode with high active strobe)

0ns

Access time A6-0, BHEN, PCSN0, PCS1, DMAACKNR,

WRN (only Motorola mode) to D15-0 valid

30

ns

Access time RDN to D15-0 valid

30

ns

Delay RDN to D15-0 high-Z

20

ns

Delay RDN to DMAREQR low

20

ns

A6-0, BHEN

PCSN0, PCS1,

DMAACKNR,

WRN (Motorola mode)

RDN

D15-0

DMAREQR