參數(shù)資料
型號(hào)： P80C557E8
廠商： NXP Semiconductors N.V.
元件分類： 8位微控制器
英文描述： 8 BIT MICROCONTROLLER
中文描述： 8位微控制器
文件頁(yè)數(shù)： 42/72頁(yè)
文件大?。?/td> 374K
代理商： P80C557E8
Philips Semiconductors
Product specification
P83C557E4/P80C557E4/P89C557E4
Single-chip 8-bit microcontroller
1999 Mar 02
42
Clock
Gen.
Interrupts,
Serial
Ports,
T0, T1, T3
XTAL4
XTAL3
Figure 40. Idle and Power Down Hardware for Clock Generation
XTAL1
XTAL2
3.5 to
16 MHz
Osc
f
CLK
CPU
T2
ADC
PWM
32 kHz
PLL
Osc
Seconds timer
PD
IDL
SELXTAL1
Figure 41. Wake-up by interrupt
INT0
INT1
set External Interrupt latch
INT0 : 2 cycles
INT1 : 1 cycle
Internal timing stopped
C1
C1
C1
C2
Power-down Mode
Idle Mode
LCALL
oscillator stopped
oscillator start_up
interrupts are polled
Interrupt routine
> 10 ms
> 560 ms
> 10 ms
XTAL1,2
32 kHz oscillator stopped
running
6.11.1
The modes Idle and Power-down are activated by software via the
Special Function Register PCON. Its hardware address is 87H.
PCON is not bit addressable. The reset value of PCON is
(00000000).
Power Control Register
6.11.2
The instruction that sets PCON.0 is the last instruction executed in
the normal operating mode before Idle Mode is activated. Once in
the Idle Mode, the CPU status is preserved in its entirety: the Stack
Pointer, Program Counter, Program Status Word, Accumulator, RAM
and all other registers maintain their data during Idle Mode. The
status of external pins during Idle Mode is shown in Table 40.
Idle Mode
There are three ways to terminate the Idle Mode:
Activation of any enabled interrupt X0, T0, X1, SEC, T1, S0 or S1
will cause PCON.0 to be cleared by hardware terminating Idle Mode
but only, if there is no interrupt in service with the same or higher
priority. The interrupt is serviced, and following return from interrupt
instruction RETI, the next instruction to be executed will be the one
which follows the instruction that wrote a logic 1 to PCON.0.
The flag bits GF0 and GF1 may be used to determine whether the
interrupt was received during normal execution or during Idle Mode.
For example, the instruction that writes to PCON.0 can also set or
clear one or both flag bits. When Idle Mode is terminated by an
interrupt, the service routine can examine the status of the flag bits.
The second way of terminating the Idle Mode is with an external
hardware reset. Since the oscillator is still running, the hardware
reset is required to be active for two machine cycles (24 HF
oscillator periods) to complete the reset operation if the HF oscillator
is selected.
When the PLL oscillator is selected a hardware reset of > 1
μ
sec
(but no longer than 10 ms) is required and the microcontroller will
typically restart within 63 msec after the reset has finished.
The third way of terminating the Idle Mode is by internal watchdog
reset. The microcontroller restarts after 3 machine cycles in all
cases.
相關(guān)PDF資料
PDF描述
P83C557E8 8 BIT MICROCONTROLLER
P83C557E4EBB Single-chip 8-bit microcontroller
P83C557E4EFB Single-chip 8-bit microcontroller
P89C557E4EBB Single-chip 8-bit microcontroller
P89C557E4EFB Single-chip 8-bit microcontroller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P80C557E8EFB 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
P80C562 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller
P80C562EBA 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller
P80C562EBA/02 制造商:NXP Semiconductors 功能描述:IC 8BIT CPU SMD 80C562 PLCC68
P80C562EBA/02,512 功能描述:8位微控制器 -MCU 80C51 8BIT A/D 16MHZ ROMLESS RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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