 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
PC97338VLJ датащи(PDF) 124 Page - National Semiconductor (TI) |
|
|
|
|||||||||||||||||||||||||||||
PC97338VLJ датащи(HTML) 124 Page - National Semiconductor (TI) |
|
|
124 / 221 page  124 www.national.com TABLE 62. Parallel Port Reset States 4.2.1 Standard Parallel Port (SPP) Modes Register Set All SPP mode port operation is controlled by three registers. Table 63 shows the registers of the parallel port in the Standard Parallel Port (SPP) modes. The register bits assignments are compatible with the assignments in existing SPP devices. TABLE 63. Standard Parallel Port Registers 4.2.2 SPP Mode Parallel Port Register Bitmaps 4.2.3 Data Register (DTR), Offset 0 This bidirectional data port transfers 8-bit data in the direction determined by bit 7 of configuration Register PTR and bit 5 of SPP register CTR. Bit 7 of the PTR selects the port mode - compatible mode, with no data input capability, or extended mode, having data input capability. Bit 5 of the CTR determines the direction of the data flow - whether from the Data register DTR to the sys- tem, or from DTR to the external pins PD7-0. Signal Reset Control State After Reset SLIN MR TRI-STATE INIT MR Zero AFD MR TRI-STATE STB MR TRI-STATE IRQ5,7 MR TRI-STATE Offset A1 A0 Symbol Description R/W 00 0 DTR Data R/W 10 1 STR Status R 2 1 0 CTR Control R/W 31 1 - TRI-STATE 7 654 32 10 Reset Required 0 0 0 0 0 0 0 0 Data Register (DTR) Offset 0 D2 D4 D5 D6 D7 D0 D1 D3 7 654 32 10 Reset Required 1 1 1 1 1 1 1 1 Status Register (STR) Offset 1 IRQ Status SLCT Status PE Status ACK Status BUSY Status Time-Out Status Reserved ERR Status 7 654 32 10 Reset Required 0 0 0 0 0 0 1 1 Control Register (CTR) Offset 2 Printer Initialization Control(INIT) Interrupt Enable Direction Control Reserved Reserved Data Strobe Control Automatic Line Feed Control Parallel Port Input Control |
|
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
