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參數(shù)資料
| 型號： | UPD17217GT |
| 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)： | 12/84頁 |
| 文件大?。?/td> | 350K |
| 代理商： | UPD17217GT |
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μ
PD17215, 17216, 17217, 17218
12
2.3
Stack
A stack is a register to save a program return address and the contents of system registers (to be described later) when
a subroutine is called or when an interrupt is accepted.
2.3.1
Stack configuration
Fig. 2-3 shows the stack configurarion.
A stack consists of a stack pointer (a 4-bit binary counter, the upper 1-bit fixed to 0), five 11-bit (
μ
PD17215)/12-bit
(
μ
PD17216)/13-bit (
μ
PD17217, 17218) address stack registers, and three 5-bit (
μ
PD17215, 17216)/6-bit (
μ
PD17217,
17218) interrupt stack registers.
Fig. 2-3 Stack Configuration
Address stack registers
(ASR)
b
11
b
10
b
9
b
8
b
7
b
6
b
5
b
4
b
3
b
2
b
1
b
0
Address stack register 1
Address stack register 2
Address stack register 3
Address stack register 4
b
2
b
1
b
0
SPb
2
SPb
1
SPb
0
Stack pointer
(SP)
0H
1H
2H
3H
4H
5H
6H
7H
0H
1H
2H
Interrupt stack registers
(INTSK)
BANKSK1
BANKSK2
BCDSK0
BCDSK1
BCDSK2
CMPSK0
CMPSK1
CMPSK2
CYSK0
CYSK1
CYSK2
ZSK0
ZSK1
ZSK2
IXESK0
IXESK1
IXESK2
Address stack register 0
WDOUT pin goes low
when the contents
of the stack pinter
are 6H-7H.
b
3
0
b
12
PD17215
μ
PD17216
μ
PD17217, 17218
μ
b
4
b
3
b
2
b
5
BANKSK0
b
1
b
0
Undefined
Undefined
Undefined
PD17215, 17216
μ
PD17217, 17218
μ
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| UPD17218 | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
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| UPD17218GT | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17215GT | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| UPD17218 | 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 |
| UPD17218CT | 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 |
| UPD17218GT | 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 |
| UPD17225 | 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 |
| UPD17225CT | 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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