 |
Os motores de busca de Datasheet de Componentes eletrônicos |
|
|
Os motores de busca de Datasheet de Componentes eletrônicos |
|
TL16PC564BLVPZ Folha de dados(PDF) 5 Page - Texas Instruments |
|
||||||||||||||||||||||||||||||
TL16PC564BLVPZ Folha de dados(HTML) 5 Page - Texas Instruments |
|
|
5 / 33 page  TL16PC564B, TL16PC564BLV PCMCIA UNIVERSAL ASYNCHRONOUS RECEIVER TRANSMITTER SLLS225A – MARCH 1996 – REVISED FEBRUARY 1998 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Terminal Functions TERMINAL INTER- I/O DESCRIPTION NAME NO. INTER FACE† I/O DESCRIPTION HA0 HA1 HA2 HA3 HA4 HA5 HA6 HA7 HA8 HA9 78 79 81 82 83 84 85 87 90 92 H I The 10-bit address bus addresses the attribute memory (bits 1 – 8) and addresses the internal UART as either PCMCIA I/O (bits 0 – 2) or as a standard COM port (bits 0 – 9). HD0 HD1 HD2 HD3 HD4 HD5 HD6 HD7 77 76 75 100 99 98 96 95 H I/O The 8-bit bidirectional data bus transfers data to and from the attribute memory and the internal UART. INPACK 71 H O Input port acknowledge. INPACK is an active-low output signal that is asserted when the card responds to an I/O read cycle at the address on the HA bus. IORD 63 H I I/O read strobe. IORD is an active-low input signal activated to read data from the card I/O space. The REG signal and at least one of the card enable inputs (CE1, CE2) must also be active for the I/O transfer to take place. This signal has an internal pullup resistor. IOWR 64 H I I/O write strobe. IORW is an active-low input signal activated to write data to the card I/O space. The REG signal and at least one of the card enable inputs (CE1, CE2) must also be active for the I/O transfer to take place. This signal has an internal pullup resistor. IREQ 88 H O Interrupt request. IREQ is an active-low output signal asserted by the card to indicate to the host CPU that a card device requires host software service. This signal doubles as READY/BUSY during power-up initialization. IRQ 27 S O Interrupt request. This active-high IRQ to the subsystem indicates a host CPU write to attribute memory has occurred. NANDOUT 12 M O This is a production test output. OE 93 H I Output enable. OE is an active-low input signal used to gate memory read data from the card. This signal has an internal pullup resistor. OUT1 OUT2 37 44 U O Output 1 and output 2 are active-low signals. OUT1 and OUT2 are user-defined output terminals that are set to their active state by setting respective MCR bits (OUT1 and OUT2) high. OUT1 and OUT2 are set to their inactive (high) state as a result of a reset, doing loop-mode operation, or by resetting bit 2 (OUT1) or bit 3 (OUT2) of the MCR. This signal has an open-drain outputs. RCLK 40 U I Receiver clock. RCLK is the 16 ×-baud-rate clock input for the receiver section of the UART. RD(DS) 29 S I Read enable or data strobe input. RD(DS) is the active-low read enable in the Intel mode and the active-low data strobe in the Zilog mode. REG 73 H I Attribute memory select. This active-low input signal is generated by the host CPU and accesses attribute memory (OE and WE active) and I/O space (IORD or IOWR active). PCMCIA common memory access is excluded. This signal has an internal pullup resistor and hysteresis on the input buffer. RESET 67 H I Reset. RESET is an active-high input that serves as the master reset for the device. RESET clears the UART, placing the card in an unconfigured state. This signal has an internal pullup resistor. RI 50 U I Ring indicator. RI is an active-low modem status signal whose condition can be checked by reading bit 6 (RI) of the MSR. The trailing-edge ring indicator (TERI) bit 2 of the MSR indicates that RI has transitioned from a low to a high state since the last read from the MSR. If the modem status interrupt is enabled when this transition occurs, an interrupt is generated. † Host = H, Subsystem = S, UART = U, Miscellaneous = M |
Nº de peça semelhante - TL16PC564BLVPZ |
|
Descrição semelhante - TL16PC564BLVPZ |
|
|
Ligação URL |
| Privacy Policy |
| ALLDATASHEETPT.COM |
| ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes 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 |
Portuguese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
