Reset Module - Renesas M3A-HS64 User Manual

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3.12 Reset Module

A reset IC controls reset signals connected to the SH7264, flash memory and peripheral I/Os on the M3A-HS64 and
M3A-HS64G01. 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 × 0.1 F = 33 ms
Note: Pin names in red indicate the function used.
Rev. 1.00 Apr 30, 2009
REJ11J0034-0100
EN pin of the DC/DC
that generates +1.2V
3.3 V
SWG
RESP#
RESN#
+
SW2
Figure 3.12.1 Reset Module Block Diagram
M3A-HS64G01 Functions
H-UDI connector (36-pin)
RES#
H-UDI connector (14-pin)
RES#
SH7264
Expansion connector
RES# PG24/MISO1/TIOC0D
NOR flash memory
RESET#
Serial flash memory
RESET#
RS-232C driver
SHDN#
3.12 Reset Module
D/A converter 1 (AK4353)
PDN#
D/A converter 2 (AK4353)
PDN#
Audio codec (AK4524)
PDN#
CD deck
CDRST#
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