176
4.9.3
Pin States in External Bus Released State
Table 4.10 shows pin states in the external bus released state.
Table 4.10
Pin States in Bus Released State
Pins
Pin State
A23 to A0
High impedance
D15 to D0
High impedance
CSn
(n = 7 to 0)
High impedance
UCAS
,
LCAS
High impedance
AS
High impedance
RD
High impedance
OE
High impedance
HWR
,
LWR
High impedance
DACKn
(n = 1, 0)
High
EDACKn
(n = 3 to 0)
High
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