7733 datasheet(708/940 Pages) RENESAS

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RESET

7735 Group User’s Manual

13–2

Concerning chapter “RESET,” the 7735 Group differs from the 7733 Group in the following section. Therefore,

only the differences are described in this chapter:

• “13.1 Hardware reset”

The following section of the 7735 Group is the same as that of the 7733 Group. Therefore, for this section,

refer to part 1:

• “13.2 Software reset” (page 13-12 in part 1)

13.1 Hardware reset

Concerning section “13.1 Hardware reset,” the 7735 Group differs from the 7733 Group in the following:

______

• “Table 13.1.1 Pin state while pin RESET is at “L” level”

• “Figure 13.1.6 State of SFR area and internal RAM area immediately after reset (4)”

The other description is the same as that of the 7733 Group. Therefore, refer to part 1:

• “13.1 Hardware reset” (page 13-2 in part 1)

13.1 Hardware reset

Mask ROM version

Built-in PROM

version

External ROM

version

Pin CNVSS’s level

VSS or VCC

VSS

VCC

Pin state

Floating

“H” level is output.

Floating

“H” level is output.

Floating

•Floating when “H” level is applied

to both or one of pins P51 and P52

•“H” or “L” level is output when

“L” level is applied to both of pins

P51 and P52.

“H” level is output.

“H” or “L” level is output.

“H” level is output.

“L” level is output.

(operating) is output.

Floating

______

Table 13.1.1 Pin state while pin RESET is at “L” level

Pin (Port) name

P0 to P8

_ ____

E/RDE

P0 to P8

_ ____

E/RDE

P0, P1, P3 to P8

_ ____

E/RDE

A0/D0 to A7/D7,

A8/D8 to A15/D15, A16, A17

___

____

CS0 to CS4, WEL,

____

_____

_ ____

WEH, HLDA, E/RDE

ALE

______

____

HOLD, RDY,

P43 to P47, P5 to P8

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