- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄359059 > M37281MKH-XXXSP (Renesas Technology Corp.) SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER PDF資料下載
參數(shù)資料
| 型號(hào)： | M37281MKH-XXXSP |
| 廠商： | Renesas Technology Corp. |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| 中文描述： | 單芯片8位CMOS微機(jī)隱蔽字幕解碼器和屏幕顯示控制器 |
| 文件頁(yè)數(shù)： | 21/172頁(yè) |
| 文件大?。?/td> | 1319K |
| 代理商： | M37281MKH-XXXSP |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)當(dāng)前第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)第149頁(yè)第150頁(yè)第151頁(yè)第152頁(yè)第153頁(yè)第154頁(yè)第155頁(yè)第156頁(yè)第157頁(yè)第158頁(yè)第159頁(yè)第160頁(yè)第161頁(yè)第162頁(yè)第163頁(yè)第164頁(yè)第165頁(yè)第166頁(yè)第167頁(yè)第168頁(yè)第169頁(yè)第170頁(yè)第171頁(yè)第172頁(yè)
Rev.1.01 2003.07.16 page 21 of 170
M37281MAH
–
XXXSP,M37281MFH
–
XXXSP,M37281MKH
–
XXXSP, M37281EKSP
8.3 INTERRUPTS
Interrupts can be caused by 19 different sources consisting of 3 ex-
ternal, 14 internal, 1 software, and reset. Interrupts are vectored in-
terrupts with priorities as shown in Table 8.3.1. Reset is also included
in the table because its operation is similar to an interrupt.
When an interrupt is accepted,
x
The contents of the program counter and processor status register
are automatically stored into the stack.
The interrupt disable flag I is set to
“
1
”
and the corresponding
interrupt request bit is set to
“
0.
”
The jump destination address stored in the vector address enters
the program counter.
Nothing to stop reset.
Other interrupts are disabled when the interrupt disable flag is set to
“
1.
”
All interrupts except the BRK instruction interrupt have an interrupt
request bit and an interrupt enable bit. The interrupt request bits are
in interrupt request registers 1 and 2 and the interrupt enable bits are
in interrupt control registers 1 and 2. Figures 8.3.2 to 8.3.6 show the
interrupt-related registers.
Interrupts other than the BRK instruction interrupt and reset are ac-
cepted when the interrupt enable bit is
“
1,
”
interrupt request bit is
“
1,
”
and the interrupt disable flag is
“
0.
”
The interrupt request bit can be
set to
“
0
”
by a program, but not set to
“
1.
”
The interrupt enable bit can
be set to
“
0
”
and
“
1
”
by a program.
Reset is treated as a non-maskable interrupt with the highest priority.
Figure 8.3.1 shows interrupt control.
8.3.1 Interrupt Causes
(1) V
SYNC
and OSD Interrupts
The V
SYNC
interrupt is an interrupt request synchronized with
the vertical sync signal.
The OSD interrupt occurs after character block display to the
CRT is completed.
(2) INT1, INT2 External Interrupts
The INT1 and INT2 interrupts are external interrupt inputs, the
system detects that the level of a pin changes from LOW to HIGH
or from HIGH to LOW, and generates an interrupt request. The
input active edge can be selected by bits 3 and 4 of the interrupt
input polarity register (address 0212
16
) : when this bit is
“
0,
”
a
change from LOW to HIGH is detected; when it is
“
1,
”
a change
from HIGH to LOW is detected. Note that both bits are cleared to
“
0
”
at reset.
(3) Timer 1 to 4 Interrupts
An interrupt is generated by an overflow of timer 1, 2, 3 or 4.
Vector Addresses
FFFF
16
, FFFE
16
FFFD
16
, FFFC
16
FFFB
16
, FFFA
16
FFF9
16
, FFF8
16
FFF7
16
, FFF6
16
FFF5
16
, FFF4
16
FFF3
16
, FFF2
16
FFF1
16
, FFF0
16
FFEF
16
, FFEE
16
FFED
16
, FFEC
16
FFEB
16
, FFEA
16
FFE9
16
, FFE8
16
FFE7
16
, FFE6
16
FFE5
16
, FFE4
16
FFE3
16
, FFE2
16
FFDF
16
, FFDE
16
Interrupt Source
Reset
OSD interrupt
INT1 external interrupt
Data slicer interrupt
Serial I/O interrupt
Timer 4 interrupt
f(X
IN
)/4096
SPRITE OSD interrupt
V
SYNC
interrupt
Timer 3 interrupt
Timer 2 interrupt
Timer 1 interrupt
A-D convertion
INT3 external interrupt
INT2 external interrupt
Multi-master I
2
C-BUS interface interrupt
Timer 5
6 interrupt
BRK instruction interrupt
Remarks
Non-maskable
Active edge selectable
Software switch by software (See note)
Software switch by software (See note)/
When selecting INT3 interrupt, active edge selectable.
Active edge selectable
Software switch by software (See note)
Non-maskable (software interrupt)
Table 8.3.1 Interrupt Vector Addresses and Priority
Priority
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Note :
Switching a source during a program causes an unnecessary interrupt occurs. Accordingly, set a source at initializing of program.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M37534E4GP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37534E4FP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37544 | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37548G1FP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37549G1FP | 32K x 8 Static RAM; Density: 256 Kb; Organization: 32Kb x 8; Vcc (V): 4.5 to 5.5 V; |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M372899234 | 制造商:ITW Switches 功能描述:IN-RUSH |
| M372F3200DJ3-C | 制造商:SAMSUNG 制造商全稱(chēng):Samsung semiconductor 功能描述:32M x 72 DRAM DIMM with ECC Using 16Mx4, 4K & 8K Refresh, 3.3V |
| M372F3280DJ3-C | 制造商:SAMSUNG 制造商全稱(chēng):Samsung semiconductor 功能描述:32M x 72 DRAM DIMM with ECC Using 16Mx4, 4K & 8K Refresh, 3.3V |
| M3731 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:4 SIRENS & MACHINE GUN 2 LEDS BLINKING |
| M3731-1 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:4 SIRENS & MACHINE GUN 2 LEDS BLINKING |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。