Renesas M3A-HS64, User Manual

Page: 92 / 238

M3A-HS64G01 Functions
3.12 Reset Module
Rev. 1.00 Apr 30, 2009
3-26
REJ11J0034-0100
3
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.
Reset IC output delay time: td = 330 K × 0.1 F = 33 ms
RNA50C27AUS
SWG VDD33
VDD18
CREXT
3.3 V
EN pin of the DC/DC
that gen1.2V
RESP#
RESN#
3.3 V
H-UDI connector (14-pin)
RES#
SH7264
RES#
H-UDI connector (36-pin)
RES#
PG24 /MISO1/TIOC0D PDN#
D/A converter 1 (AK4353)
NOR flash memory
RESET#
Serial flash memory
RESET#
RS-232C driver
SHDN#
PDN#
D/A converter 2 (AK4353)
PDN#
Audio codec (AK4524)
CD deck
CDRST#
Expansion connector
330 K
0.1 F
SW2
+
Note: Pin names in red indicate the function used.
Figure 3.12.1 Reset Module Block Diagram