Reset Module - Renesas M3A-HS64 User Manual

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2.9 Reset Module

A reset IC controls reset signals connected to the SH7264, flash memory and peripheral I/Os on the M3A-HS64. There are two
system reset options; power-on reset, and reset by switch.
The following figure shows the reset module block diagram.
RNA50C27AUS
3.3 V
VDD33
VDD18
330 K
CREXT
0.1 F
Reset IC output delay time: td = 330 K x 0.1 F = 33 ms
Rev. 1.00 Apr 30, 2009
REJ11J0034-0100
EN pin of the
DC/DC that
generates 1.2 V
3.3 V
SWG
RESP#
RESN#
+
SW2
Figure 2.9.1 Reset Module Block Diagram
M3A-HS64 Functions
2.9 Reset Module
H-UDI connector (36-pin)
RES#
H-UDI connector (14-pin)
RES#
NOR flash memory
RESET#
Serial flash memory
RESET#
RS-232C driver
SHDN#
Expansion connector
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