Fujitsu F2MC-16LX Hardware Manual page 75

16-bit microcontroller mb90330 series
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Interrupt Control Register Functions
Interrupt level set bit (IL2 to IL0)
Specifies the interrupt level for the associated peripheral function. Initialized to level 7 (no interrupts) by
reset. Table 3.3-2 shows the relationship between the interrupt level set bits and each interrupt level.
Table 3.3-2 Correspondence between Interrupt Level Set Bits and Interrupt Levels
IL2
0
0
0
0
1
1
1
1
2
EI
OS enable bit (ISE)
If the ISE bit is "1" during generation of an interrupt request, EI
sequence will be activated. Furthermore, when the end condition of EI
bits are other than "00
2
EI
OS function, the ISE bit must have been set to "0" by software. The ISE bit is initialized to "0" by reset
by "0000
".
B
2
EI
OS channel select bits (ICS3 to ICS0)
Specifies the channel of EI
the value set here. The ICS bit is initialized to "0000
between the EI
IL1
0
0
1
1
0
0
1
1
"), the ISE bit is cleared. If the associated peripheral function does not have the
B
2
OS with a write only bit. The address of the EI
2
OS channel select bits and descriptor addresses.
IL0
Interrupt level
0
0 (highest interrupt)
1
0
1
0
1
0
6 (lowest interrupt)
1
7 (No interrupt)
2
OS is activated; if it is "0", the interrupt
" by reset by. Table 3.3-3 shows the correspondence
B
CHAPTER 3 INTERRUPT
2
OS is satisfied, (both the S1 and S0
2
OS descriptor is determined by
59

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