Mod Select Circuit - Renesas 32185 User Manual

2.3

MOD Select Circuit

This circuit is used to set operation modes of the M32R/ECU. The MOD0 power supply is
configured in such a way that MOD0 is switched from the EXTMOD0 signal of extension connector
(CON2) by using a jumper (J8).
The MOD1 power supply defaults to 0 V. The MOD2 power supply is fixed to 0 V.
CON2
FX1-144S-1.27DS
EXTMOD0
Note: TX6 is not mounted but it only has one pattern available.
Figure 2.3 MOD Select Circuit
Table 2.3 Operation Mode Settings
MOD0 MOD1 MOD2
0 0
1 0
0 1
1 1
Table 2.4 MOD Select Circuit (Jumper)
Name Condition
Shorted
between 1–2
J8
Shorted
between 2–3
Shorted
between 1–2
J2
Shorted
between 2–3
Note: The J2 and J8 jumpers are shorted by pattern wiring on the reverse side of printed circuit board.
Case of setting the condition except for default, setting the jumper is required after cutting the pattern
for default condition by referring to the chapter 3.8 Setting jumper by cutting
REJ10B0223-0150/Rev.1.50
VCCE
VCCE
• When flash reprogramming is disabled: Single-chip mode
0
• When flash reprogramming is enabled: Flash rewrite + single-chip mode
• When flash reprogramming is disabled: Processor mode
0 • When flash reprogramming is enabled: Flash rewrite from boot ROM +
single-chip mode
0 External extension mode
0 Settings inhibited
Controls MOD0 by EXTMOD0, unless control MOD0 by
Default
EXTMOD0 sets MOD0 to 0
Sets MOD0 to 1
Default Sets MOD1 to 0
Sets MOD1 to 1
32185/32186/32192/32195/32196 Group
Starter Kit User's Manual M3A-2154G52B
U1
M32R/ECU
TX6
J8
3
2
MOD0
1
J2
3
2
MOD1
1
MOD2
Description
Description
Mar 2008
* CONx : Connector
* Jx : Jumper
* TXx : Test pin
* Ux : IC
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