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10 reset module – Renesas CPU Board M3A-HS19 User Manual

Page 37

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Features and Specifications

2.10 Reset Module

Rev.1.01 Oct 28, .2008

2-21

REJ10J1351-0101

2

2.10 Reset Module

Reset module controls reset signals connected to the SH7619 MCU, a flash memory and connectors. Software controls to

reset PCMCIA connector.

Figure 2.10.1 shows the schematic diagram of resets.

3.3 V

SW2

Reset switch

Reset

IC

M51957BFP(U13)

Input

Delay capacitor

Flash memory

*

*

Open collector output

Output

3.3 V

RESET#

Ra

Rb

Cd

Reset IC output delay time: td 0.34

Cd(pF)µsec

34 ms

Reset IC output detect voltage: Vs 1.25

2.5 V

)

Rb

Ra+Rb

)

10

K

10

K

0.1 µF

Expansion connector

RESET#

RES#

SH7619

H-UDI connector

RESET#

100

LVC14(U14)

S08(U15)

RESET_IN(J9-1)

PC09/RX_ER

RESET

1OE#

2OE#

Bus switch

(U9)

JP2

PCMCIA(J4)

PC20/WOL

Figure 2.10.1 M3A-HS19 Reset System