423
Chapter 29 MPU / EDSU
4.Registers
Some restrictions apply with the setting of the MPE bit.
MPE=0 (break unit):
•
permission registers are don’t care (BCRx bits [23:16])
MPE=1 (memory protection unit):
•
OBS and OBT should be set to ’3’ (BCRx bits [11:8], any size and any type)
•
CTC should not be set to ’3’ (BCRx bits [13:12], data value check not supported in this mode)
BIT[14]: COMB - Channel Combination Enable
Depending on the MPE configuration bit the COMB feature has different meaning.
(A) COMB=1 and MPE=0 (break unit, combined operand address and data value break):
The break detection conditions are combined before setting the BIRQ_BD bits and signalizing an operand break
condition. Setting the COMB bit is required for defining a data value break on a specific operand address. If the
COMB bit is set to ’1’, both conditions, matching operand address (OA) and matching data value (DT), are required
to be true. Setting the COMB bit makes only sense in the OA/DT mode, defined by CTC=3.
The AND-combination is effective between channels 3 (OA1) and 1 (DT1) and between channels 2 (OA0) and 0
(DT0). It is assumed that no range operation is defined (ER1=ER0=0).
BIRQ_BD3 = BIRQ_BD1 = BD3 && BD1;
BIRQ_BD2 = BIRQ_BD0 = BD2 && BD0;
If channels 3 and 2 define an operand address range (OA1:OA0) by setting ER1=1 and/or channels 1 and 0 define
a data value range (DT1:DT0) by setting ER0=1, the break detection bits of each channel are AND-combined with
the ORed channels of the opposite range comparator break detection outputs.
BIRQ_BD3 = BD3 && (BD1 || BD0);
BIRQ_BD2 = BD2 && (BD1 || BD0);
BIRQ_BD1 = BD1 && (BD3 || BD2);
BIRQ_BD0 = BD0 && (BD3 || BD2);
This offers the same interpretation of the BIRQ break detction bits (see table
4-2
for coding of match on start point,
range or end point) as it would be the case for range detection with COMB=0. BD3 and BD2 hold the coding for the
operand address (OA) match, whereas BD1 and BD0 hold the coding for the data value (DT) match. The COMB bit
set to ’1’ ensures that both conditions, the OA match and the DT match must be true to set the appropriate BD bit
in the end.
If the COMB bit is set to ’0’ all break detection bits are passed to the BIRQ register in it’s original form. The compa-
rator channels match conditions are independent from each other.
(B) COMB=1 and MPE=1 (memory protection unit, combined rwx permissions on single range):
In memory protection mode the COMB bit has the meaning of combined data read/write and code execute permis-
sions, set for the same address range. The setting is only meaningful for the combination of operand address (OA)
comparators on channels 3 and 2 and instruction address (IA) comparators on channels 1 and 2 in the mode
CTC=2.
1
The group of channels operates in memory protection mode
0
No combination between channels (default)
1
Combination between channels is effective
Содержание FR Family FR60 Lite
Страница 2: ...FUJITSU LIMITED ...
Страница 3: ...FR60 32 BIT MICROCONTROLLER MB91460 Series User s Manual ...
Страница 15: ...xi ...
Страница 16: ...xii ...
Страница 38: ...22 Chapter 2 MB91460 Rev A Rev B Overview 4 Block Diagram ...
Страница 128: ...112 Chapter 4 CPU Architecture 9 Addressing ...
Страница 153: ...137 Chapter 8 Device State Transition 3 State Transition Diagram ...
Страница 154: ...138 Chapter 8 Device State Transition 3 State Transition Diagram ...
Страница 169: ...153 Chapter 9 Reset 10 Caution ...
Страница 170: ...154 Chapter 9 Reset 10 Caution ...
Страница 180: ...164 Chapter 10 Standby 7 Q A ...
Страница 182: ...166 Chapter 10 Standby 8 Caution ...
Страница 199: ...183 Chapter 12 Instruction Cache 2 Main body structure Figure 2 3 I Cache Address Map ...
Страница 200: ...184 Chapter 12 Instruction Cache 2 Main body structure Figure 2 4 I Cacheable Area ...
Страница 222: ...206 Chapter 13 Clock Control 8 Caution ...
Страница 232: ...216 Chapter 14 PLL Interface 7 Caution ...
Страница 236: ...220 Chapter 15 CAN Clock Prescaler 3 Registers ...
Страница 288: ...272 Chapter 19 Timebase Timer 8 Caution ...
Страница 314: ...298 Chapter 22 Main Oscillation Stabilisation Timer 8 Caution ...
Страница 326: ...310 Chapter 23 Sub Oscillation Stabilisation Timer 8 Caution ...
Страница 348: ...332 Chapter 25 External Interrupt 8 Caution ...
Страница 398: ...382 Chapter 26 DMA Controller 6 DMA External Interface ...
Страница 402: ...386 Chapter 27 Delayed Interrupt 8 Caution ...
Страница 412: ...396 Chapter 28 Bit Search 8 Caution ...
Страница 521: ...505 Chapter 30 I O Ports 3 Port Register Settings ...
Страница 522: ...506 Chapter 30 I O Ports 3 Port Register Settings ...
Страница 549: ...533 Chapter 31 External Bus 2 External Bus Interface Registers is set to the high impedance state ...
Страница 574: ...558 Chapter 31 External Bus 4 Endian and Bus Access Byte Access ...
Страница 628: ...612 Chapter 31 External Bus 13 Notes on Using the External Bus Interface ...
Страница 706: ...690 Chapter 33 I2C Controller 4 Programming Flow Charts ...
Страница 748: ...732 Chapter 34 CAN Controller 4 CAN Application ...
Страница 762: ...746 Chapter 35 Free Run Timer 8 Caution ...
Страница 790: ...774 Chapter 37 Output Compare 8 Caution ...
Страница 838: ...822 Chapter 39 Programmable Pulse Generator 8 Caution ...
Страница 850: ...834 Chapter 40 Pulse Frequency Modulator 4 PFM Operation and Setting ...
Страница 886: ...870 Chapter 42 Sound Generator 3 Registers ...
Страница 900: ...884 Chapter 43 Stepper Motor Controller 4 Caution ...
Страница 939: ...923 Chapter 47 LCD Controller 3 Configuration Figure 3 2 Register List ...
Страница 943: ...927 Chapter 47 LCD Controller 4 Registers Correspondence between VRAM and Common Segment Pins ...
Страница 964: ...948 Chapter 48 Clock Monitor 8 Caution ...
Страница 994: ...978 Chapter 51 Low Voltage Reset Interrupt 3 Registers ...
Страница 998: ...982 Chapter 52 Regulator Control 3 Registers ...
Страница 1008: ...992 Chapter 53 Fixed Mode Reset Vector BOOT ROM 5 Bootloader Update Strategy ...
Страница 1024: ...1008 Chapter 54 Flash Memory 8 Caution ...
Страница 1032: ...1016 Chapter 55 Flash Security 4 Register ...
Страница 1034: ...1018 Chapter 56 Electrical Specification ...
Страница 1035: ...FR60 MB91460 Series Hardware Manual European Microcontroller Design Centre Author MBo ...
Страница 1036: ......
Страница 1038: ......