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參數(shù)資料
| 型號： | P89LPC932BA |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 80C51 8-bit microcontroller with two-clock core 8 KB 3 V low-power Flash with 512-byte data EEPROM |
| 中文描述： | 8-BIT, FLASH, 12 MHz, MICROCONTROLLER, PQCC28 |
| 封裝： | PLASTIC, MS-018, SOT-261-2, LCC-28 |
| 文件頁數(shù)： | 22/64頁 |
| 文件大小： | 316K |
| 代理商： | P89LPC932BA |
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9397 750 14871
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 — 10 May 2005
22 of 64
Philips Semiconductors
P89LPC932A1
8-bit microcontroller with accelerated two-clock 80C51 core
In edge-triggered mode, if successive samples of the INTn pin show a HIGH in one cycle
and a LOW in the next cycle, the interrupt request flag IEn in TCON is set, causing an
interrupt request.
If an external interrupt is enabled when the P89LPC932A1 is put into Power-down or Idle
mode, the interrupt will cause the processor to wake-up and resume operation. Refer to
Section 7.15 “Power reduction modes”
for details.
7.13 I/O ports
The P89LPC932A1 has four I/O ports: Port 0, Port 1, Port 2, and Port 3. Ports 0, 1 and 2
are 8-bit ports, and Port 3 is a 2-bit port. The exact number of I/O pins available depends
upon the clock and reset options chosen, as shown in
Table 6
.
(1) See
Section 7.19 “CCU”
Fig 7.
Interrupt sources, interrupt enables, and power-down wake-up sources.
002aaa892
IE0
EX0
IE1
EX1
BOF
EBO
KBIF
EKBI
interrupt
to CPU
wake-up
(if in power-down)
EWDRT
CMF2
CMF1
EC
EA (IE0.7)
TF1
ET1
TI & RI/RI
ES/ESR
TI
EST
SI
EI2C
SPIF
ESPI
RTCF
ERTC
(RTCCON.1)
WDOVF
TF0
ET0
any CCU interrupt
(1)
ECCU
EIEE
EEIF
Table 6:
Clock source
Number of I/O pins available
Reset option
Number of I/O pins
(28-pin package)
26
25
On-chip oscillator or watchdog oscillator
No external reset (except during power-up)
External RST pin supported
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