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參數(shù)資料
| 型號： | UPD17227GT |
| 廠商： | NEC Corp. |
| 元件分類： | 4位微控制器 |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| 中文描述： | 4位單片機的小型通用紅外遙控器 |
| 文件頁數(shù)： | 51/84頁 |
| 文件大?。?/td> | 393K |
| 代理商： | UPD17227GT |
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μ
PD17225, 17226, 17227, 17228
51
Data Sheet U12643EJ2V0DS00
9.3
Reset by Stack Pointer (Connect RESET and WDOUT pins)
When the value of the stack pointer reaches 6H or 7H during program execution, a low level is output to the WDOUT
pin, and the program counter is reset to 0.
If the nesting level of the interrupt or subroutine call exceeds 5 (stack over flow), or if the return instruction is executed
without correspondence between CALL and return (RET) instructions established, then regardless of a stack level of 0
(stack underflow), the program can be restarted from address 0H.
Table 9-1. Status of Each Hardware After Reset
Hardware
RESET Input During
Standby Mode
RESET Input
During Operation
Program Counter (PC)
0000H
0000H
Port
Input/output
Input
Input
Output latch
0
0
Data Memory (RAM)
General-purpose data memory
(Except DBF, port register)
Retains previous
status
Undefined
DBF
0320H
0320H
System register (SYSREG)
0
0
WR
Retains previous
status
Undefined
Control Register
Refer to
Figure 11-1 Register Files
8-bit Timer
Counter (TMC)
00H
00H
Modulo register (TMM)
FFH
FFH
Remote Controller Carrier
Generator
NRZ high-level timer modulo register (NRZHTMM)
Retains previous
status
Undefined
NRZ low-level timer modulo register (NRZLTMM)
Basic Interval Timer/Watchdog Timer Counter
00H
00H
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPD17225GT | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17225 | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17225CT | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17225MC | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17226 | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPD17227GT-XXX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MICROCONTROLLER|4-BIT|UPD17K CPU|CMOS|SOP|28PIN|PLASTIC |
| UPD17227MC | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17227MC-XXX-5A4 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| UPD17228 | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17228CT | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
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