M30218 Datasheet, PDF (424/467 Pages) Mitsubishi Electric Semiconductor – M30218 Group

Controlling Power Applications
Mitsubishi microcomputers
M30218 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Initial condition
b7
b0
1
Pull-up control register 2
[Address 03FE16]
PUR2
P84 to P87 pulled high
b7
0
b0 Port P8 direction register
[Address 03F216]
PD8
Set P85 to input port
Interrupt enable level (IPL) = 0
Interrupt enable flag (I) = 1
Main
b7
b0 ^{INT5 interrupt control register}
00
0 0 1 ^{[Address 004916]}
INT5IC
Interrupt priority level select bit
Set higher value than the present IPL
Polarity select bit
0 : Selects falling edge
Reserved bit
Always set to “0”
Setting interrupt except stop mode cancel
Interrupt control register DMiIC(i=0, 1) [Address 004B16, 004C16]
ADIC
[Address 004E16]
ASIOIC
[Address 004F16]
FLDIC
[Address 005016]
SiTIC(i=0, 1) [Address 005116, 005316]
SiRIC(i=0, 1) [Address 005216, 005416]
b7
b0 _{TAiIC(i=0 to 4) [Address 005516 to 005916]}
b7
0 0 0 TBiIC(i=0 to 2) [Address 005A16 to 005C16]
0
Interrupt priority level select bit
000 : Interrupt disabled
Canceling protect
b7
b0 _{Protect register [Address 000A 16]}
1 _PRCR
Enables writing to system clock control registers 0 and 1
(addresses 0006 16 and 000716)
1 : Write-enabled
b0
0 0 0 INTiIC(i=0 to 4) [Address 004716 to 004816]
[Address 005D16 to 005F16]
Interrupt priority level select bit
000 : Interrupt disabled
Reserved bit
Always set to “0”
Setting operation clock after returning from stop mode
(When operating with X IN after returning)
b7
0
0
b0 ^{System clock control register 0}
[Address 000616]
CM0
Main clock (XIN-XOUT) stop bit
On
System clock select bit
XIN, XOUT
As this register becomes setting mentioned above when
operating with X IN (count source of BCLK is X IN),
the user does not need to set it again.
(When operating with X CIN after returning)
b7
1
1
b0 ^{System clock control register 0}
[Address 000616]
CM0
Port XC select bit
XCIN-XCOUT generation
System clock select bit
XCIN, XCOUT
As this register becomes setting mentioned above when operating with X CIN
(count source of BCLK is X CIN), the user does not need to set it again.
When operating with X IN, set port Xc select bit to “1” before setting system
clock select bit to “1”. The both bits cannot be set at the same time.
All clocks off (stop mode)
b7
b0
0 0 0 0 1 ^{System clock control register 1 [Address 0007 16]}
CM1
All clock stop control bit
1 : All clocks off (stop mode)
Reserved bit
Always set to “0”
NOP instruction X 5
INT5 interrupt request generation
Figure 3.7.3. Set-up procedure of controlling power using stop mode (1)
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