The following document contains information on Cypress products.
AN706-00049-1v0-E
32-BIT MICROCONTROLLER
FM3 family Application Note
Interrupt factor vector relocate function
Usage
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AN706-00049-1v0-E
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Copyright© 2012 FUJITSU SEMICONDUCTOR LIMITED all rights reserved
1
AN706-00049-1v0-E
Revision History
Rev
Date
Remark
1.0
Aug. 30, 2012
First Edition
2
AN706-00049-1v0-E
Table of Contents
Revision History...................................................................................................................... 2
Table of Contents.................................................................................................................... 3
Target products ....................................................................................................................... 4
1
Introduction...................................................................................................................... 5
2
Interrupt factor Vector relocate function .......................................................................... 6
3
Correction of file ............................................................................................................. 11
4
3.1
File to be corrected ................................................................................................. 11
3.2
Correction of startup routine ................................................................................... 11
3.3
Correction of IO definition file ................................................................................ 14
Setting of interrupt factor Vector relocate function........................................................ 15
4.1
5
6
Setting of register ................................................................................................... 15
Example of setting (sample program) ........................................................................... 16
5.1
Interrupt factor definition file .................................................................................. 16
5.2
Sample program .................................................................................................... 16
Precautions ................................................................................................................... 18
3
AN706-00049-1v0-E
Target products
This application note is described about below products;
(TYPE4)
Series
Product Number (not included Package suffix）
MB9B110R
MB9BF112N, MB9BF112R, MB9BF114N, MB9BF114R,
MB9BF115N, MB9BF115R, MB9BF116N, MB9BF116R
MB9B310R
MB9BF312N, MB9BF312R, MB9BF314N, MB9BF314R,
MB9BF315N, MB9BF315R, MB9BF316N, MB9BF316R
MB9B410R
MB9BF412N, MB9BF412R, MB9BF414N, MB9BF414R,
MB9BF415N, MB9BF415R, MB9BF416N, MB9BF416R
MB9B510R
MB9BF512N, MB9BF512R, MB9BF514N, MB9BF514R,
MB9BF515N, MB9BF515R, MB9BF516N, MB9BF516R
(TYPE5)
Series
Product Number (not included Package suffix）
MB9A110K
MB9AF111K, MB9AF112K
MB9A310K
MB9AF311K, MB9AF312K
(TYPE6)
Series
Product Number (not included Package suffix）
MB9A140N
MB9AF141L, MB9AF141M, MB9AF141N,
MB9AF142L, MB9AF142M, MB9AF142N,
MB9AF144L, MB9AF144M, MB9AF144N
MB9A340N
MB9AF341L, MB9AF341M, MB9AF341N,
MB9AF342L, MB9AF342M, MB9AF342N,
MB9AF344L, MB9AF344M, MB9AF344N
MB9AA40N
MB9AFA41L, MB9AFA41M, MB9AFA41N,
MB9AFA42L, MB9AFA42M, MB9AFA42N,
MB9AFA44L, MB9AFA44M, MB9AFA44N
MB9AB40N
MB9AFB41L, MB9AFB41M, MB9AFB41N,
MB9AFB42L, MB9AFB42M, MB9AFB42N,
MB9AFB44L, MB9AFB44M, MB9AFB44N
4
AN706-00049-1v0-E
1
Introduction
This application note explains the usage of the "interrupt factor Vector relocate function"
mounted on FM3.
5
AN706-00049-1v0-E
2
Interrupt factor Vector relocate function
The interrupt factor Vector relocate function switches the assigning of the interrupt factor
Vector set to FM3. Two types of interrupt factor Vector assigning shown in Table 2-1 can be
selected by setting the IRQCMODE bit of the IRQCMODE register. When IRQCMODE is set
to 1, the interrupt factors shown in Table 2-2 can be selected for IRQ No.3-10. For the
selection of interrupt factor, the INTSELx bit of the RCINTSEL0/1 register is used.
Table 2.1Exceptions and Interrupt factor vectors list
Exceptions and Interrupt factor vectors
Vector
No.
IRQ
No.
0
-
Stack pointer initial value
1
-
Reset
2
-
Non-Maskable Interrupt (NMI) / Hardware Watchdog Timer
3
-
Hard Fault
4
-
Memory Management
5
-
Bus Fault
6
-
Usage Fault
7
1
1
1
1
1
-
IRQCMODE=0*
1
0
1
2
3
4
5
Reserved
SVCall (Supervisor Call)
Debug Monitor
Reserved
PendSV
SysTick
6
IRQCMODE=1
AN706-00049-1v0-E
Vector
No.
1
1
1
1
2
2
2
2
2
2
2
2
2
2
3
3
3
Exceptions and Interrupt factor vectors
IRQ
No.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
IRQCMODE=0*
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
IRQCMODE=1
Anomalous Frequency Detection by Clock Supervisor (FCS)
Software Watchdog Timer
Low Voltage Detector (LVD)
MFT unit0, unit1, unit2 Wave
Form Generator /
DTIF(Motor
Emergency Stop)
Selecting the interrupt factor with
RCINTSEL0 register
External Pin Interrupt ch.0 to ch.7
Selecting the interrupt factor with
RCINTSEL0 register
External Pin Interrupt ch.8 to
ch.31
Selecting the interrupt factor with
RCINTSEL0 register
Dual Timer / Quad Counter
(QPRC) ch.0, ch.1,
ch.2
Selecting the interrupt factor with
RCINTSEL0 register
Reception Interrupt of MFS ch.0
Selecting the interrupt factor with
RCINTSEL1 register
Transmission Interrupt and
Status Interrupt of
MFS ch.0
Selecting the interrupt factor with
RCINTSEL1 register
Reception Interrupt of MFS ch.1
Selecting the interrupt factor with
RCINTSEL1 register
Transmission Interrupt and
Status Interrupt of
MFS ch.1
Selecting the interrupt factor with
RCINTSEL1 register
Reception Interrupt of MFS ch.2
MFT unit0 Wave Form Generator /
DTIF(Motor Emergency
Stop)
Transmission Interrupt and
Status Interrupt of
MFS ch.2
External pin interrupt ch.0 to ch.7
Reception Interrupt of MFS ch.3
External pin interrupt ch.8 to ch.31
Transmission Interrupt and
Status Interrupt of
MFS ch.3
Dual timer / Quad counter (QPRC)
ch.0
Reception Interrupt of MFS ch.4
Reception Interrupt, Transmission
Interrupt and Status
Interrupt of MFS ch.0
Transmission Interrupt and
Status Interrupt of
MFS ch.4
Reception Interrupt, Transmission
Interrupt and Status
Interrupt of MFS ch.1
7
AN706-00049-1v0-E
Vector
No.
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
5
Exceptions and Interrupt factor vectors
IRQ
No.
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
IRQCMODE=0*
3
4
5
6
7
8
9
0
1
2
3
IRQCMODE=1
Reception Interrupt of MFS ch.5
Reception Interrupt, Transmission
Interrupt and Status
Interrupt of MFS ch.2
Transmission Interrupt and
Status Interrupt of
MFS ch.5
Reception Interrupt, Transmission
Interrupt and Status
Interrupt of MFS ch.3
Reception Interrupt of MFS ch.6
Reception Interrupt of MFS ch.4
Transmission Interrupt and
Status Interrupt of
MFS ch.6
Transmission Interrupt and Status
Interrupt of MFS ch.4
Reception Interrupt of MFS ch.7
Reception Interrupt of MFS ch.5
Transmission Interrupt and
Status Interrupt of
MFS ch.7
Transmission Interrupt and Status
Interrupt of MFS ch.5
PPG ch.0/2/4/8/10/12/16/18/20
External Main OSC / External Sub OSC / Main PLL / PLL for USB/Watch
Counter/Real Time Counter
A/D Converter unit0
A/D Converter unit1
A/D Converter unit2 / LCD Controller
4
MFT unit0, unit1, unit2 Free-run
Timer
MFT unit0 Free-run Timer, Input
Capture, Output
Compare
5
MFT unit0, unit1, unit2 Input
Capture
MFT unit1 Free-run Timer, Input
Capture, Output
Compare
6
MFT unit0, unit1, unit2 Output
Compare
MFT unit2 Free-run Timer, Input
Capture, Output
Compare
7
8
9
0
Base Timer ch.0 to ch.7
CAN ch.0 / Ethernet ch.0
CAN ch.1 / Ethernet ch.1
USB ch.0 Function (DRQ of End Point 1 to 5)
8
AN706-00049-1v0-E
Vector
No.
5
5
5
5
5
5
5
5
5
6
6
6
6
Exceptions and Interrupt factor vectors
IRQ
No.
35
36
37
38
39
40
41
42
43
44
45
46
47
IRQCMODE=0*
IRQCMODE=1
1
USB ch.0 Function (DRQI of End Point 0, DRQO and each status) /USB
ch.0 HOST (each status)
2
USB ch.1 Function (DRQ of End Point 1 to 5) / HDMI-CEC, Remote
Control Reception ch.0
3
4
5
6
7
8
9
0
1
2
3
USB ch.1 Function (DRQI of End Point 0, DRQO and each status) /USB
ch.1 HOST (each status) / HDMI-CEC, Remote Control
Reception ch.1
DMA Controller (DMAC) ch.0
DMA DMA Controller (DMAC) ch.0 to
ch.7
DMA Controller (DMAC) ch.1
MFT unit1 Wave Form Generator /
DTIF(Motor Emergency
Stop)
DMA Controller (DMAC) ch.2
MFT unit2 Wave Form Generator /
DTIF(Motor Emergency
Stop)
DMA Controller (DMAC) ch.3
Quad counter (QPRC) ch.1
DMA Controller (DMAC) ch.4
Reception Interrupt of MFS ch.6
DMA Controller (DMAC) ch.5
Transmission Interrupt and Status
Interrupt of MFS ch.6
DMA Controller (DMAC) ch.6
Reception Interrupt of MFS ch.7
DMA Controller (DMAC) ch.7
Transmission Interrupt and Status
Interrupt of MFS ch.7
Base Timer ch.8 to ch.15
Flash RDY, HANG interrupt
Quad counter (QPRC) ch.2 / Flash
RDY, HANG interrupt
*: Compatible with TYPE0 to TYPE2.
Table 2.2 Selection interrupt factor
Setting value of
RCINTSELx:INTSELx
Interrupt Factor
0x00
No interrupt factor is selected
0x01
External interrupt ch.0
0x02
External interrupt ch.1
0x03
External interrupt ch.2
0x04
External interrupt ch.3
0x05
External interrupt ch.4
9
AN706-00049-1v0-E
Setting value of
RCINTSELx:INTSELx
Interrupt Factor
0x06
External interrupt ch.5
0x07
External interrupt ch.6
0x08
External interrupt ch.7
0x09
External interrupt ch.8
0x0A
External interrupt ch.9
0x0B
External interrupt ch.10
0x0C
External interrupt ch.11
0x0D
IRQ0/IRQ1 of the base timer ch.0
0x0E
IRQ0/IRQ1 of the base timer ch.1
0x0F
IRQ0/IRQ1 of the base timer ch.2
0x10
IRQ0/IRQ1 of the base timer ch.3
0x11
IRQ0/IRQ1 of the base timer ch.4
0x12
IRQ0/IRQ1 of the base timer ch.5
0x13
IRQ0/IRQ1 of the base timer ch.6
0x14
IRQ0/IRQ1 of the base timer ch.7
0x15
Reception interrupt of MFS ch.0
0x16
Reception interrupt of MFS ch.1
0x17
Reception interrupt of MFS ch.2
0x18
Reception interrupt of MFS ch.3
0x19
Zero detection interrupt of MFT unit0 free-run
timer ch.0
0x1A
Zero detection interrupt of MFT unit1 free-run
timer ch.0
0x1B
Zero detection interrupt of MFT unit2 free-run
timer ch.0
0x1C
DMAC ch.0
0x1D
DMAC ch.1
0x1E
DMAC ch.2
0x1F
DMAC ch.3
0x20 to 0xFF
Reserved
10
AN706-00049-1v0-E
3
Correction of file
This chapter explains the method for correcting a file required for using the interrupt factor
Vector relocate function.
3.1
File to be corrected
If the interrupt factor is changed by setting of the relocate function, it is necessary to correct
the following files of the FM3 template project.
・ Startup routine (startup_mb9xfxxx.s)
・ IO definition file (mb9xxxxx.h)
3.2
Correction of startup routine
In the startup routine, the interrupt handler is defined.
When you use the relocate function, the definition names of the interrupt handlers of
"IRQ No.3 to No.22, No.28 to No.30, No.38 to No.45, No.47" of startup_mb9xfxxx.s do
not correspond to the interrupt names after relocation. Use it after changing the
definition names of the interrupt handlers. For the definition name to be used, an
arbitrary name can be given.
An Example for changing the interrupt handler of IRQ No.3 from default "multifunction timer
waveform generator/DTIF" to "external interrupt ch.0" is shown in the figures. Figure 3-1 is
for ARM and Figure 3-2 is for IAR.
11
AN706-00049-1v0-E
e.g.) Definition of the interrupt handler of IRQ No.3 is changed from "multifunction timer waveform
generator/DTIF" to "external interrupt ch.0" (for ARM)
・File name: example¥ARM¥startup_mb9xfxxx.s
<Before change>
__Vectors
DCD
DCD
DCD
・・・
DCD
DCD
DCD
DCD
・・・
Default_Handler PROC
・・・
EXPORT
EXPORT
EXPORT
EXPORT
・・・
CSV_Handler
SWDT_Handler
LVD_Handler
MFT_WG_IRQHandler
<After change>
__Vectors
DCD
DCD
DCD
・・・
DCD
DCD
DCD
DCD
・・・
Default_Handler PROC
・・・
EXPORT
EXPORT
EXPORT
EXPORT
・・・
CSV_Handler
SWDT_Handler
LVD_Handler
INT0_Handler
__initial_sp
Reset_Handler
NMI_Handler
; Top of Stack
; Reset Handler
; NMI Handler
CSV_Handler
SWDT_Handler
LVD_Handler
MFT_WG_IRQHandler
;
;
;
;
CSV_Handler
SWDT_Handler
LVD_Handler
MFT_WG_IRQHandler
[WEAK]
[WEAK]
[WEAK]
[WEAK]
__initial_sp
Reset_Handler
NMI_Handler
; Top of Stack
; Reset Handler
; NMI Handler
CSV_Handler
SWDT_Handler
LVD_Handler
INT0_Handler
;
;
;
;
CSV_Handler
SWDT_Handler
LVD_Handler
INT0_Handler
[WEAK]
[WEAK]
[WEAK]
[WEAK]
0:
1:
2:
3:
0:
1:
2:
3:
Clock Super Visor
Software Watchdog Timer
Low Voltage Detector
Wave Form Generator / DTIF
Clock Super Visor
Software Watchdog Timer
Low Voltage Detector
External Interrupt ch.0 (INTSEL0)
Fig. 3-1 Example of definition of interrupt handler (for ARM)
12
AN706-00049-1v0-E
e.g.) Definition of the interrupt handler of IRQ No.3 is changed from "multifunction timer waveform
generator/DTIF” to "external interrupt ch.0" (for IAR)
・File name: example¥IAR¥startup_mb9xfxxx.s
<Before change>
__vector_table DCD
DCD
DCD
・・・
DCD
DCD
DCD
DCD
・・・
PUBWEAK
SECTION
SWDT_Handler
B
sfe(CSTACK)
Reset_Handler
NMI_Handler
; Top of Stack
; Reset
; NMI
CSV_Handler
SWDT_Handler
LVD_Handler
MFT_WG_IRQHandler
;
;
;
;
0:
1:
2:
3:
Clock Super Visor
Software Watchdog Timer
Low Voltage Detector
Wave Form Generator / DTIF
SWDT_Handler
.text:CODE:REORDER(1)
SWDT_Handler
PUBWEAK LVD_Handler
SECTION .text:CODE:REORDER(1)
LVD_Handler
B
LVD_Handler
PUBWEAK MFT_WG_IRQHandler
SECTION .text:CODE:REORDER(1)
MFT_WG_IRQHandler
B
MFT_WG_IRQHandler
<After change>
__vector_table DCD
DCD
DCD
・・・
DCD
DCD
DCD
DCD
・・・
PUBWEAK
SECTION
SWDT_Handler
B
sfe(CSTACK)
Reset_Handler
NMI_Handler
; Top of Stack
; Reset
; NMI
CSV_Handler
SWDT_Handler
LVD_Handler
INT0_Handler
;
;
;
;
0:
1:
2:
3:
Clock Super Visor
Software Watchdog Timer
Low Voltage Detector
External Interrupt ch.0 (INTSEL0)
SWDT_Handler
.text:CODE:REORDER(1)
SWDT_Handler
PUBWEAK LVD_Handler
SECTION .text:CODE:REORDER(1)
LVD_Handler
B
LVD_Handler
PUBWEAK INT0_Handler
SECTION .text:CODE:REORDER(1)
INT0_Handler
B
INT0_Handler
Fig. 3-2 Example of definition of interrupt handler (for IAR)
13
AN706-00049-1v0-E
3.3
Correction of IO definition file
In the IO definition file, the interrupt number for the interrupt factor is defined. The section
that defines the interrupt number is
"typedef enum IRQn {・・・}IRQn_Type;" of "Interrupt Number Definition."
When you use the relocate function, the definitions of interrupt factors of "IRQ No.3 to No.22,
No.28 to No.30, No.38 to No.45, No.47" of mb9xxxxx.h do not correspond to the interrupt
names after relocation. Use it after changing the definition names of the interrupt factors. For
the definition name to be used, an arbitrary name can be given.
Figure 3-3 shows an example for changing the interrupt factor definition of IRQ No.3 from
default "multifunction timer waveform generator/DTIF" to "external interrupt ch.0".
e.g.) Definition of the interrupt trigger of IRQ No.3 is changed from "multifunction timer waveform
generator/DTIF" to "external interrupt ch.0"
・File name: common¥mb9xxxxx.h
<Before change>
typedef enum IRQn
{
NMI_IRQn
HardFault_IRQn
・・・
CSV_IRQn
SWDT_IRQn
LVD_IRQn
WFG_IRQn
・・・
} IRQn_Type;
<After change>
typedef enum IRQn
{
NMI_IRQn
HardFault_IRQn
・・・
CSV_IRQn
SWDT_IRQn
LVD_IRQn
EXINT0_IRQn
・・・
} IRQn_Type;
= -14, /*
= -13, /*
2 Non Maskable
3 Hard Fault
*/
*/
= 0, /* Clock Super Visor
= 1, /* Software Watchdog Timer
= 2, /* Low Voltage Detector
= 3, /* Wave Form Generator
= -14, /*
= -13, /*
2 Non Maskable
3 Hard Fault
*/
*/
= 0, /* Clock Super Visor
= 1, /* Software Watchdog Timer
= 2, /* Low Voltage Detector
= 3, /* External Interrupt ch.0 (INTSEL0 setting)
Fig. 3-3 Example of definition of interrupt factor
14
*/
*/
*/
*/
*/
*/
*/
*/
AN706-00049-1v0-E
4
Setting of interrupt factor Vector relocate function
This chapter explains the setting of registers required for using the interrupt factor Vector
relocate function.
4.1
Setting of register
To use the relocate function, it is necessary to set the following registers.
・ Interrupt factor Vector relocate setting register (IRQCMODE)
・ Interrupt factor selection register 0 (RCINTSEL0)
・ Interrupt factor selection register 1 (RCINTSEL1)
With the RCINTSEL0/1 register, set the interrupt factor to be allocated to IRQ No.3 to No.10
(Vectors No.19 to No.26). The settable interrupt factors are shown in "Table 2.2 Selection
interrupt factor." The RCINTSEL0 register corresponds to IRQ No.3 to No.6 and the
RCINTSEL1 register corresponds to IRQ No.7 to No.10. The initial value of the
RCINTSEL0/1 register is set to "no interrupt factor is selected."
The IRQCMODE register performs the switching of the relocate function. The interrupt factor
Vector is switched as shown in "Table 4.1 List of exceptions and interrupt factor vectors" by
setting the IRQCMODE bit to ”1.”
Figure 4-1 shows an example of the register setting.
e.g.) Setting of register
FM3_INTREQ->RCINTSEL0
FM3_INTREQ->RCINTSEL0
FM3_INTREQ->RCINTSEL0
FM3_INTREQ->RCINTSEL0
|=
|=
|=
|=
0x00000001;
0x00000200;
0x00030000;
0x04000000;
FM3_INTREQ->RCINTSEL1
FM3_INTREQ->RCINTSEL1
FM3_INTREQ->RCINTSEL1
FM3_INTREQ->RCINTSEL1
|= 0x0000000D;
|= 0x00001500;
|= 0x00190000;
|= 0x1C000000;
FM3_INTREQ->IRQCMODE = 0x00000001;
/*
/*
/*
/*
bit7-0:INTSEL0=0x01 Select Ext-Int ch.0 */
bit15-8:INTSEL1=0x02 Select Ext-Int ch.1 */
bit23-16:INTSEL2=0x03 Select Ext-Int ch.2 */
bit31-24:INTSEL3=0x04 Select Ext-Int ch.3 */
/* bit7-0:INTSEL4=0x0D Select BT ch.0 IRQ0/1 */
/* bit15-8:INTSEL5=0x15 Select MFS ch.0 RX */
/* bit23-16:INTSEL6=0x19 Select MFT0 FRT ch.0 */
/* bit31-24:INTSEL7=0x1C Select DMAC ch.0 */
/* bit0:IRQCMODE=0b1 Interrupt Vector Relocate */
Fig. 4-1 Setting of register
15
AN706-00049-1v0-E
5
Example of setting (sample program)
This chapter shows an example of the sample program using the interrupt factor Vector
relocate function.
5.1
Interrupt factor definition file
The startup routine (startup_mb9xfxxx.s) and the IO definition file (mb9xxxxx.h) in which the
interrupt factors are defined use the definition file corrected in "3. Correction of file."
5.2
Sample program
The sample program of the Vector relocate function is shown in Figure 5-1. The setting of
the sample program is shown below.
・ External interrupt ch.0 is set for IRQ No.3
・ For IRQ No.4 to No.10, an interrupt factor is not selected
・ Interrupt factor Vector relocate function ON
・ Terminal of external interrupt ch.0 uses INT00_0
・ External interrupt ch.0 detects a falling edge
16
AN706-00049-1v0-E
File name: main.c
External interrupt ch.0 is selected for IRQ No.3
For IRQ No.4 to 10, the interrupt trigger is not selected
(default)
int32_t main( void )
{
/* setting Interrupt Factor Vector Relocate */
FM3_INTREQ->RCINTSEL0 = 0x00000001;
/* bit7-0:INTSEL0=0x01 Select Ext-Int ch.0 */
FM3_INTREQ->RCINTSEL1 = 0x00000000;
FM3_INTREQ->IRQCMODE = 0x00000001;
/* Interrupt request no select */
/* bit0:IRQCMODE=0b1 Interrupt Vector Relocate */
<< Interrupt trigger Vector relocate function ON
/* setting INT00_0 */
FM3_GPIO->EPFR06 = 0x00000000;
/* bit5,4:EINT00S=0b00 EINT-ch0 use INT00_0 */
FM3_GPIO->PFR5 |= 0x0001;
/* bit2:PFR5_0=0b1 P50 use peripheral port */
/* setting External Interrupt ch.0 */
FM3_EXTI->ENIR = 0x00000000;
/* INT interrupt disable */
FM3_EXTI->ELVR
= 0x00000003;
/* bit1,0:LB0,LA0=0b11 INT0 low level edge */
FM3_EXTI->EICL
= 0x00000000;
/* bit2:ECL=0b0 INT0 interrupt request clear */
FM3_EXTI->ENIR
= 0x00000001;
/* bit2:EN0=0b1 enable INT0 */
/* interrupt priority setting */
NVIC_SetPriority( EXINT0_IRQn , 0x00);
<< Name defined by the IO definition file is used
/* interrupt enable set bit setting for INT00_0 interrupt */
NVIC_EnableIRQ( EXINT0_IRQn );
<< Name defined by the IO definition file is used
/* main loop */
while(1){;}
}
/******************************
** Interrupt Handler
******************************/
void INT0_Handler (void) << Name defined by the startup routine is used
{
FM3_EXTI->EICL &= 0xFFFFFFFE;
/* clear interrupt request */
}
Fig. 5-1 Sample program
17
AN706-00049-1v0-E
6
Precautions
・ An interrupt factor selected by the RCINTSEL0/1 register is masked by IRQ11 to IRQ47.
(The relevant bits of IRQ11MON to IRQ47MON registers are also masked.)
・ Set the interrupt factor to be selected by INTSEL0 to INTSEL7 bits without duplication.
・ The bit field definition and the bit band definition of the IRQxxMON register in the IO
definition file are definitions before relocation. Note that the definition after relocation is
different. When needed to use the IRQxxMON register after relocation, use the register
definition.
e.g.) Read access to IRQ12MON using register definition
Unsigned int tmp;
tmp = FM3_INTREQ->IRQ12MON;
- EOF -
18