參數資料
型號: M38D24G4HP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64
封裝: 10X 10 MM, 0.50 MM PITCH, PLASTIC, LQFP-64
文件頁數: 54/136頁
文件大?。?/td> 2856K
代理商: M38D24G4HP
Rev.3.02
Apr 10, 2008
Page 24 of 131
REJ03B0177-0302
38D2 Group
INTERRUPTS
The 38D2 Group interrupts are vector interrupts with a fixed
priority scheme, and generated by 16 sources among 18 sources:
6 external, 11 internal, and 1 software.
The interrupt sources, vector addresses(1), and interrupt priority
are shown in Table 10.
Each interrupt except the BRK instruction interrupt has the
interrupt request bit and the interrupt enable bit. These bits and
the interrupt disable flag (I flag) control the acceptance of
interrupt requests. Figure 16 shows an interrupt control diagram.
An interrupt requests is accepted when all of the following
conditions are satisfied:
Interrupt disable flag ................................ “0”
Interrupt request bit .................................. “1”
Interrupt enable bit ................................... “1”
Though the interrupt priority is determined by hardware, priority
processing can be performed by software using the above bits
and flag.
Notes 1:Vector addresses contain interrupt jump destination addresses.
2:Reset function in the same way as an interrupt with the highest priority.
Table 10 Interrupt vector addresses and priority
Interrupt Source
Priority
Vector Addresses(1)
Interrupt Request Generating
Conditions
Remarks
High
Low
Reset (2)
1FFFD16
FFFC16
At reset
Non-maskable
INT0
2FFFB16
FFFA16
At detection of either rising or falling
edge of INT0 input
External interrupt (active edge selectable)
INT1
3FFF916
FFF816
At detection of either rising or falling
edge of INT1 input
External interrupt (active edge selectable)
INT2
4FFF716
FFF616
At detection of either rising or falling
edge of INT2 input
Valid when INT2 interrupt is selected
External interrupt (active edge selectable)
Key input
(key-on wakeup)
At falling of ports P00
P03, P54P57
input logical level AND
Valid when key input interrupt is selected
External interrupt (falling valid)
CNTR0
5FFF516
FFF416
At detection of either rising or falling
edge of CNTR0 input
External interrupt (active edge selectable)
Timer X
6
FFF316
FFF216
At timer X underflow
Timer 1
7
FFF116
FFF016
At timer 1 underflow
Valid when timer 1 interrupt is selected
Timer 2
8
FFEF16
FFEE16
At timer 2 underflow
Valid when timer 2 interrupt is selected
Timer 3
9
FFED16
FFEC16
At timer 3 underflow
Valid when timer 3 interrupt is selected
Timer 4
10
FFEB16
FFEA16
At timer 4 underflow
Valid when timer 4 interrupt is selected
Serial I/O1 receive
11
FFE916
FFE816
At completion of serial I/O1 data receive Valid only when serial I/O1 is selected
Serial I/O1 transmit
12
FFE716
FFE616
At completion of serial I/O1 transmit
shift or transmit buffer is empty
Valid only when serial I/O1 is selected
Serial I/O2 receive
13
FFE516
FFE416
At completion of serial I/O2 data receive Valid only when serial I/O2 is selected
Serial I/O2 transmit
14
FFE316
FFE216
At completion of serial I/O2 data
transmit shift or transmit buffer is empty
Valid only when serial I/O2 is selected
Timer Y
15
FFE116
FFE016
At timer Y underflow
CNTR1
At detection of either rising or falling
edge of CNTR1 input
External interrupt (active edge selectable)
A/D conversion
16
FFDF16
FFDE16
At completion of A/D conversion
Valid when A/D interrupt is selected
BRK instruction
17
FFDD16
FFDC16 At BRK instruction execution
Non-maskable software interrupt
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