 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
P89LPC9401 датащи(PDF) 21 Page - NXP Semiconductors |
|
|
|||||||||||||||||||||||||||||
P89LPC9401 датащи(HTML) 21 Page - NXP Semiconductors |
|
|
21 / 59 page  P89LPC9401_1 © Koninklijke Philips Electronics N.V. 2005. All rights reserved. Preliminary data sheet Rev. 01 — 5 September 2005 21 of 59 Philips Semiconductors P89LPC9401 8-bit two-clock 80C51 microcontroller with 32 segment × 4 LCD driver 7.13 I/O ports The P89LPC9401 has four I/O ports: Port 0 and Port 1 are 8-bit ports. Port 2 is a 5-bit port. 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] Required for operation above 12 MHz. 7.13.1 Port configurations All but three I/O port pins on the P89LPC9401 may be configured by software to one of four types on a bit-by-bit basis. These are: quasi-bidirectional (standard 80C51 port outputs), push-pull, open drain, and input-only. Two configuration registers for each port select the output type for each port pin. Fig 7. Interrupt sources, interrupt enables, and power-down wake-up sources 002aab464 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 and RI/RI ES/ESR TI EST SI EI2C SPIF ESPI RTCF ERTC (RTCCON.1) WDOVF TF0 ET0 Table 6: Number of I/O pins available Clock source Reset option Number of I/O pins (not including LCD pins) On-chip oscillator or watchdog oscillator No external reset (except during power-up) 23 External RST pin supported 22 External clock input No external reset (except during power-up) 22 External RST pin supported [1] 21 Low/medium/high speed oscillator (external crystal or resonator) No external reset (except during power-up) 21 External RST pin supported [1] 20 |
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
