- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385388 > HMS81C43XX (Hynix Semiconductor Inc.) CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER FOR TELEVISION PDF資料下載
參數(shù)資料
| 型號(hào)： | HMS81C43XX |
| 廠商： | Hynix Semiconductor Inc. |
| 英文描述： | CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER FOR TELEVISION |
| 中文描述： | CMOS單芯片8位單片機(jī)電視 |
| 文件頁數(shù)： | 74/100頁 |
| 文件大?。?/td> | 1943K |
| 代理商： | HMS81C43XX |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁當(dāng)前第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁
HMS81C43xx / GMS87C4060
74
November 2001 ver 1.2
A maskable interrupt is not accepted until the I-flag is set
to "1" even if a maskable interrupt of higher priority than
that of the current interrupt being serviced.
When nested interrupt service is necessary, the I-flag is set
to "1" in the interrupt service program. In this case, accept-
able interrupt sources are selectively enabled by the indi-
vidual interrupt enable flags.
Saving/Restoring General-purpose Register
During interrupt acceptance processing, the program
counter and the program status word are automatically
saved on the stack, but not the accumulator and other reg-
isters. These registers are saved by the program if neces-
sary. Also, when nesting multiple interrupt services, it is
necessary to avoid using the same data memory area for
saving registers.
The following method is used to save/restore the general-
purpose registers.
Example: Register save using push and pop instructions
General-purpose register save/restore using push and pop
instructions;
19.2 BRK Interrupt
Software interrupt can be invoked by BRK instruction,
which is the lowest priority order.
Interrupt vector address of BRK is shared with the vector
of TCALL 0 (Refer to Program Memory Section). When
BRK interrupt is generated, B-flag of PSW is set to distin-
guish BRK from TCALL 0.
Each processing step is determined by B-flag as shown in
Figure 19-6 .
Figure 19-6 Execution of BRK/TCALL0
INTxx:
PUSH
PUSH
LDA
A
X
DPGR
PUSH
A
;SAVE ACC.
;SAVE X REG.
;SAVE DPGR
; Direct page
; accessable reg.
;
:
interrupt processing
:
POP
STA
POP
POP
RETI
A
DPGR
X
A
;RESTORE DPGR
;RESTORE X REG.
;RESTORE ACC.
;RETURN
Basic Interval Timer
Vector Table Address
012
H
0E3
H
0FFE6
H
0FFE7
H
0E
H
2E
H
0E312
H
0E313
H
Entry Address
Correspondence between vector table address for BIT interrupt
and the entry address of the interrupt service program.
main task
interrupt
service task
saving
registers
restoring
registers
acceptance of
interrupt
interrupt return
B-FLAG
BRK
INTERRUPT
ROUTINE
RETI
TCALL0
ROUTINE
RET
BRK or
TCALL0
=0
=1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HMS87C1304A | CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER |
| HMS87C1302AD | CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER |
| HMS87C1304AD | CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER |
| HMS99C51 | 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| HMS99C52 | 8-BIT SINGLE-CHIP MICROCONTROLLERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HMS81C4460 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| HMS81C4X60 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| HMS81C5216 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:REMOTE CONTROLLER |
| HMS87C1102 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| HMS87C1102A | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。