參數(shù)資料
型號(hào)： M37471M8-XXXSP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42
封裝： 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-42
文件頁數(shù)： 19/49頁
文件大?。?/td> 601K
代理商： M37471M8-XXXSP
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 FFFF16 as the high order address and
the content of the address FFFE16 as the low order address, when
the RESET pin is held at “L” level for no less than 2
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(XIN) divided by 16.
At this time, FF16 is set to timer 3, and 0716 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
VCC
7470/7471 group
Notes 1 : Frequency relation of XIN and
φ is f(XIN)=2φ.
2 : The mark “?” means that the address is changeable
depending upon the previous state.
00, S
00, S-1
00, S-2
FFFE
ADH
,ADL
PCH
PCL
PS
ADL
XIN
φ
RESET
Internal
Address
Data
SYNC
32768 counts of f(XIN)
Reset address
from the vector table
RESET
?
??
FFFF
ADH
(1) Port P0 direction register
(C116) …
(2) Port P1 direction register
(C316) …
(3) Port P2 direction register
(C516) …
(4) Port P4 direction register
(C916) …
(5) P0 pull-up control register
(D016) …
(6) P1–P5 pull-up control register (Note 1)(D116) …
(7) Edge selection register
(EG) (D416) …
(8) A-D control register
(D916) …
(9) Serial I/O mode register
(SM) (DC16) …
(10) Timer 12 mode register (T12M) (F816) …
(11) Timer 34 mode register (T34M) (F916) …
(12) Timer mode register 2
(TM2) (FA16) …
(13) CPU mode register
(CM) (FB16) …
(14) Interrupt request register 1
(FC16) …
(15) Interrupt request register 2
(FD16) …
(16) Interrupt control register 1
(FE16) …
(17) Interrupt control register 2
(FF16) …
(18) Program counter
(PCH) …
(PCL) …
(19) Processor status register
(PS) …
0016
00 0 0
00 0 0 0 0
00 0 0
00 1 0 0 0
00
0 0
00 0 0
00 0
00
0 00 0
00 0
00
0 00 0
00 0
1
0016
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
Contents of address
FFFF16
0016
00
Contents of address
FFFE16
Notes
相關(guān)PDF資料
PDF描述
M37471E8SS 8-BIT, UVPROM, 8 MHz, MICROCONTROLLER, CDIP42
M37471RSS 8-BIT, 8 MHz, MICROCONTROLLER, CDIP42
M37478RSS 8-BIT, 8 MHz, MICROCONTROLLER, CDIP42
M37477E8TXXXSP 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP32
M37477E8TXXXFP 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDSO32
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37471RSS 功能描述:EPROM MCU/8BIT CMOS EMULATION CH RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 配件 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program RoHS指令信息:IButton RoHS Compliance Plan 標(biāo)準(zhǔn)包裝:1 系列:- 附件類型:USB 至 1-Wire? RJ11 適配器 適用于相關(guān)產(chǎn)品:1-Wire? 設(shè)備 產(chǎn)品目錄頁面:1429 (CN2011-ZH PDF)
M37471T-ADS 功能描述:PCB FOR M37471/478/481RSS RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 配件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 附件類型:適配器板 適用于相關(guān)產(chǎn)品:RCB230，RCB231，RCB212 配用:26790D-ND - RCB BREAKOUT BOARD RS232 CABLE
M37477E8FP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37477E8SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37477E8SP/FP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 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)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*