- 您现在的位置：买卖IC网 > PDF目录102744 > M37544G2SP 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP32 PDF资料下载
参数资料
| 型号： | M37544G2SP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP32 |
| 封装： | 0.400 INCH, 1.78 MM PITCH, PLASTIC, SDIP-32 |
| 文件页数： | 31/68页 |
| 文件大小： | 738K |
| 代理商： | M37544G2SP |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页当前第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页
7544 Group
Rev.1.04
2004.06.08
page 37 of 66
REJ03B0012-0104Z
● Oscillation stop detection circuit
The oscillation stop detection circuit is used for reset occurrence
when a ceramic resonator or an oscillation circuit stops by discon-
nection. When internal reset occurs, reset because of oscillation
stop can be detected by setting “1” to the oscillation stop detection
status bit.
Also, when using the oscillation stop detection circuit, an on-chip
oscillator is required.
Figure 48 shows the state transition.
The oscillation stop detection status bit retains “1”, not initialized,
when the oscillation stop reset occurs. The oscillation stop detec-
tion status bit is initialized to “0” when the external reset occurs.
Accordingly, reset by oscillation stop can be confirmed by using
this bit.
■ Notes on Oscillation Stop Detection Circuit
Oscillation stop detection status bit is initialized by the following
operation.
(1) External reset
(2) Write “0” data to the ceramic or RC oscillation stop detection
function active bit.
The oscillation stop detection circuit is not included in the emu-
lator MCU “M37544RSS”.
Fig. 45 Structure of MISRG
MISRG(address 003816, initial value: 0016)
b7
b0
Oscillation stabilization time set bit after
release of the STP instruction
0: Set “0116” in timer1, and “FF16”
in prescaler 1 automatically
1: Not set automatically
Ceramic/quartz-crystal or RC oscillation
stop detection function active bit
0: Detection function inactive
1: Detection function active
Reserved bits (return “0” when read)
(Do not write “1” to these bits)
Disable (return “0” when read)
Oscillation stop detection status bit
0: Oscillation stop not detected
1: Oscillation stop detected
相关PDF资料 |
PDF描述 |
|---|---|
| M37906M8C-XXXSP | 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PDIP42 |
| M32182F8TFP | 32-BIT, FLASH, 80 MHz, RISC MICROCONTROLLER, PQFP144 |
| MICD-038-03.75-TTR-SBR-2-B | INTERCONNECTION DEVICE |
| MICD-038-03.75-TBL-TUE-4-F | INTERCONNECTION DEVICE |
| MICD-076-03.75-TBR-TTR-1-B | INTERCONNECTION DEVICE |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M37544M2-XXXGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37544M2-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37544M2-XXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37544RSS | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37545G1KP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
发布紧急采购，3分钟左右您将得到回复。