- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370368 > GMS97C56 (HYNIX SEMICONDUCTOR INC) 8-BIT SINGLE-CHIP MICROCONTROLLERS PDF資料下載
參數(shù)資料
| 型號： | GMS97C56 |
| 廠商： | HYNIX SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| 中文描述： | 8-BIT, OTPROM, 24 MHz, MICROCONTROLLER, PDIP40 |
| 封裝： | PLASTIC, DIP-40 |
| 文件頁數(shù)： | 10/39頁 |
| 文件大小： | 254K |
| 代理商： | GMS97C56 |
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頁當(dāng)前第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
GMS97C2051/L2051
8-Bit CMOS Microcontroller
HYUNDAI MicroElectronics
10
Idle Mode
In idle mode, the CPU puts itself to sleep while all the
on-chip peripherals remain active. The mode is in-
voked by software. The content of the on-chip RAM
and all the special functions registers remain unchanged
during this mode. The idle mode can be terminated by
any enabled interrupt or by a hardware reset. P1.0 and
P1.1 should be set to
‘
0
’
if no external pullups are used,
or set to
‘
1
’
if external pullups are used.
It should be noted that when idle is terminated by a
hardware reset, the device normally resumes program
execution, from where it left off, up to two machine
cycles before the internal reset algorithm takes control.
On-chip hardware inhibits access to internal RAM in
this event, but access to the port pins is not inhibited.
To eliminate the possibility of an unexpected write to a
port pin when Idle is terminated by reset, the instruc-
tion following one that invokes Idle should not be one
that writes to a port pin or to external memory.
Power Down Mode
GMS97C2051/L2051 have two power saving modes,
Idle and Power Down. The bits PD and IDLE of the
register PCON select the Power Down mode and the
Idle mode, respectively. If 1s are written to PD and
IDLE at the same time, PD takes precedence.
Table 9
gives a general overview of the Power saving modes.
In
the Power Down mode of operation, V
CC
can be re-
duced to minimize power consumption. It must be
ensured, however, that Vcc is not reduced before the
Power Down mode is invoked, and that Vcc is restored
to its normal operating level, before the Power Down
mode is terminated. The reset signal that terminates
the Power down mode also restarts the oscillator. The
reset should not be activated before Vcc is restored to
its normal operating level and must be held active long
enough to allow the oscillator to restart and stabilize.
( similar to power-on reset ).
Table 9
. Power Saving Modes Overview
Mode
Ex. instruction to enter
To terminate
Remarks
Idle mode
ORL PCON, #01H
Enabled interrupt,
Hardware Reset
- CPU is gated off
- CPU status registers maintain their data.
- Peripherals are active
Power-down Mode
ORL PCON, #02H
Hardware Reset
- Oscillator stops
- Contents of on-chip RAM and SFRs are
maintained
- Reset redefines all the SFRs but does not
change the on-chip RAM
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| GMS97C51 | AML BUTTON/LENS SQUARE PB WHITE |
| GMS97L51 | 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| GMS97L58 | 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| GMS97L2051(中文) | MCU(高性價比的51單片機，片內(nèi)2KEPROM,5個中斷源,2個定時/計數(shù)器) |
| GMT-10A | Fuse |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| GMS97C56H | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| GMS97C58 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| GMS97C58H | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| GMS97L1051 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:8-Bit CMOS Microcontorller |
| GMS97L1051-D | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:8-Bit CMOS Microcontorller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。