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PCM16C02 Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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PCM16C02 Datasheet(HTML) 4 Page - National Semiconductor (TI) |
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4 / 42 page  30 Pinout Description TABLE 3-1 PC Card Host-Side Pins Pin Pin Pin Level Internal Description Name Type No Compatibility Resistor HDATA(150) IO 39 – 41 43 45 TTL 6 mA l 100k to GND PC Card Host Data Bus 46 66 – 71 73 – 76 HADDR(120) I 47 – 52 54 – 56 TTL l 100k to GND PC Card Host Address Bus 59 60 62 64 HOE I 63 TTL l 100k to VCC PC Card Host uses this pin to read common or attribute memory space HWE I 58 TTL l 100k to VCC PC Card Host uses this pin to write common or attribute memory space HIORD I 79 TTL l 100k to VCC PC Card Host uses this pin to read IO memory space HIOWR I 80 TTL l 100k to VCC PC Card Host uses this pin to write IO memory space IREQ O 57 CMOS 6 mA Interrupt Request signal to PC Card Host HWAIT O 33 CMOS 6 mA This pin allows the PCM16C02 to insert wait states in a PC Card transaction IOIS16 O 42 CMOS 6 mA Low indicates this IO access to the card is capable of 16-bit access Function 0 and 1 may use their IOCS16(10) respectively to control this signal and inform the host if a 16-bit access to the target is feasible INPACK O 34 CMOS 6 mA Signals a valid IO read CE1 I 65 TTL l 100k to VCC Indicates even address byte Odd addresses are not released CE1 and CE2 assertion encodings are specified by the PC Card Standard CE2 I 78 TTL l 100k to VCC Indicates odd addressing only CE1 and CE2 assertion encodings are specified by the PC Card Standard REG I 35 TTL l 100k to VCC Indicates access to attribute memory space or IO address space REG must be high to access common memory space RESET I 32 TTL Schmitt l 100k to VCC Asynchronously resets the PCM16C02 SPKR O 37 CMOS 6 mA If Audio bits are set in the Card Configuration Status Register and in either of the Function Configuration Status Registers 01 then SPKR is invert of SPK IN pin else SPKR is high STSCHG O 38 CMOS 6 mA STSCHG is asserted when the Changed bit and SigChg bit are set in the Card Configuration Status Register 4 |
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