Section 5 Interrupt Controller
Rev. 3.00 Mar. 14, 2006 Page 121 of 804
REJ09B0104-0300
Table 5.7
CPU Priority Control
Control
Status
Interrupt
Control
Mode
Interrupt
Priority
Interrupt
Mask Bit
IPSETE in
CPUPCR
CPUP2 to CPUP0
Updating of CPUP2
to CPUP0
0
Default
I = any
0
B'111 to B'000
Enabled
I = 0
1
B'000
Disabled
I = 1
B'100
2
IPR setting
I2 to I0
0
B'111 to B'000
Enabled
1
I2
to
I0
Disabled
Table 5.8 shows an setting example of the priority control function over the DMAC and the
transfer request control state. Although the DMAC priority levels can be assigned for each
channel, table 5.8 gives a single channel description. Thus, transfer for each channel can be
performed independently by assigning the different priority levels.
Table 5.8
Example of Priority Control Function Setting and Control State
Transfer Request Control State
Interrupt Control
Mode
CPUPCE in
CPUPCR
CPUP2 to
CPUP0
DMAP2 to
DMAP0
DMAC
0 0 Any
Any
Enabled
1
B'000
B'000
Enabled
B'100
B'000
Masked
B'100
B'011
Masked
B'100
B'101
Enabled
B'000
B'101
Enabled
2 0 Any
Any
Enabled
1
B'000
B'000
Enabled
B'000
B'101
Enabled
B'011
B'101
Enabled
B'100
B'101
Enabled
B'101
B'101
Enabled
B'110
B'101
Masked
B'111
B'101
Masked
B'101
B'101
Enabled
B'101
B'101
Enabled
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