- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370844 > M37470M2-XXXSP (Mitsubishi Electric Corporation) SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER PDF資料下載
參數(shù)資料
| 型號： | M37470M2-XXXSP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片8位CMOS微機 |
| 文件頁數(shù)： | 23/46頁 |
| 文件大?。?/td> | 646K |
| 代理商： | M37470M2-XXXSP |
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頁當(dāng)前第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
23
7470/7471 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
RESET CIRCUIT
The 7470/7471 group are reset according to the sequence shown
in Figure 15. It starts the program from the address formed by us-
ing the content of address FFFF
16
as the high order address and
the content of the address FFFE
16
as the low order address, when
the RESET pin is held at “L” level for no less than 2
μ
s while the
power voltage is in the recommended operating condition and
then returned to “H” level.
The internal initializations following reset are shown in Figure 16.
Example of reset circuit is Figure 14. Immediately after reset, timer
3 and timer 4 are connected, and counts the f(X
IN
) divided by 16.
At this time, FF
16
is set to timer 3, and 07
16
is set to timer 4. The
reset is cleared when timer 4 overflows.
Fig. 15 Timing diagram at reset
Fig. 14 Example of reset circuit
Fig. 16 Internal state of microcomputer at reset
RESET
V
CC
7470/7471 group
Notes 1 :
Frequency relation of X
IN
and
φ
is f(X
IN
)=2·
φ
.
2 :
The mark “” means that the address is changeable
depending upon the previous state.
00, S
00, S-1
00, S-2
FFFE
AD
H
,
AD
L
PC
H
PC
L
PS
AD
L
X
IN
φ
RESET
Internal
RESET
Address
Data
SYNC
32768 counts of f(X
IN
)
Reset address
from the vector table
FFFF
AD
H
(1) Port P0 direction register
(C1
16
) …
(2) Port P1 direction register
(C3
16
) …
(3) Port P2 direction register
(C5
16
) …
(4) Port P4 direction register
(C9
16
) …
(5) P0 pull-up control register
(D0
16
) …
(6)
P1–P5 pull-up control register (Note 1)
(D1
16
) …
(7) Edge selection register (EG) (D4
16
) …
(8) A-D control register
(D9
16
) …
(9) Serial I/O mode register (SM) (DC
16
) …
(10) Timer 12 mode register (T12M) (F8
16
) …
(11) Timer 34 mode register (T34M) (F9
16
) …
(12) Timer mode register 2 (TM2) (FA
16
) …
(13) CPU mode register (CM) (FB
16
) …
(14) Interrupt request register 1
(FC
16
) …
(15) Interrupt request register 2
(FD
16
) …
(16) Interrupt control register 1
(FE
16
) …
(17) Interrupt control register 2
(FF
16
) …
(18) Program counter
(PC
H
) …
(PC
L
) …
(19) Processor status register
(PS) …
00
16
00
16
0 0 0 0
0
0 0 0 0 0
0
0 0 0
0
0 1 0 0 0
0 0
0 0
0 0 0 0
0 0 0
0 0
0 0 0 0
0 0 0
0 0
0 0 0 0
0 0 0
1
00
16
00
16
00
16
00
16
1 :
This address is allocated P1–P4 pull-up control register for
7470 group. Bit 6 is not used.
2 :
Since the contents of both registers other than those listed
above (including timers and the serial I/O register) are
undefined at reset, it is necessary to set initial values.
Address
ContFFFF
16
ContFFFE
16
00
16
0 0
Notes
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M37470M4-XXXSP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37470M4-510SP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37470M4-523SP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37470M4-716SP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37470M4-743SP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37470M4 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37470M4-510SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37470M4-523SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37470M4-716SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37470M4-743SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。