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ISL3873IK 데이터시트(PDF) 3 Page - Intersil Corporation |
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ISL3873IK 데이터시트(HTML) 3 Page - Intersil Corporation |
3 / 31 page 3 ISL3873 Signal Descriptions HOST INTERFACE PINS PIN NAME PIN I/O TYPE DESCRIPTION HA0-9 5V tol, CMOS, Input, 50K Pull Down Host PC Card Address Input, Bits 0 to 9 HCE1- 5V tol, CMOS, Input, 50K Pull Up Host PC Card Select, Low Byte HCE2- 5V tol, CMOS, Input, 50K Pull Up Host PC Card Select, High Byte HD0-15 5V tol, BiDir, 2mA, 50K Pull Down Host PC Card Data Bus, Bit 0 to 15 HINPACK- CMOS Output, 2mA Host PC Card I/O Decode Confirmation HIORD- 5V tol, CMOS, Input, 50K Pull Up Host PC Card I/O Space Read Strobe HIOWR- 5V tol, CMOS, Input, 50K Pull Up Host PC Card I/O Space Write Strobe HRDY/HIREQ- CMOS Output, 4mA Host PC Card interrupt Request (I/O Mode), also used as PC Card Ready (Memory Mode) output which is asserted to indicate card initialization is complete HOE- 5V tol, CMOS, Input, 50K Pull Up Host PC Card Memory Attribute Space Output Enable HREG- 5V tol, CMOS, Input, 50K Pull Up Host PC Card Attribute Space Select RESET 5V tol, CMOS, ST Input, 50K Pull Up Hardware Reset. Self-asserted by internal pull-up at power-on. Clock signal CLKIN or XTALIN must be available before negation of Reset. Value of MD[15..0] copied to MDIR[15..0] and various control register bits on the first MCLK following release of Reset HSTSCHG- CMOS Output, 4mA Host PC Card Status Change HWAIT- CMOS Output, 4mA Host Wait, asserted to indicate data transfer not complete and to force force host bus wait states HWE- 5V tol, CMOS Input, 50K Pull Up Host PC Card Memory Attribute Space Write Enable USB INTERFACE PINS PIN NAME PIN I/O TYPE DESCRIPTION USB+ CMOS BiDir, 2mA, (Also USB Transceiver) USB, MBUS Address Bit 20, or I/O as PL5 USB- CMOS BiDir, 2mA, (Also USB Transceiver) USB, MBUS Address Bit 21, or I/O as PL6 USB_DETECT Input, 5V tolerant, pull-down Sense USB VBUS to indicate cable attachment MEMORY INTERFACE PINS PIN NAME PIN I/O TYPE DESCRIPTION MUBE- / MA0 / MWEH- CMOS TS Output, 2mA MBUS Upper Byte Enable for x16 Memory; MBUS Address Bit 0 (byte) for x8 Memory; High Byte Write Enable for 2 x8 Memories MA1-18 CMOS TS Output, 2mA MBUS Address Bits 1 to 18 PL4-MA19 CMOS BiDir, 2mA MBUS Address Bit 19 MLBE- CMOS TS Output, 2mA, 50K Pull Up MBUS Lower Byte Enable, or I/O as PM2 MOE- CMOS TS Output, 2mA Memory Output Enable MWE- / MWEL- CMOS TS Output, 2mA Low (or only) Byte Memory Write Enable RAMCS- CMOS TS Output, 2mA RAM Select NVCS- CMOS TS Output, 2mA NV Memory Select MD0-7 5V tol, CMOS, BiDir, 2mA, 100K Pull Up MBUS Low Data Byte, Bits 0 to 7 MD8-15 5V tol, CMOS, BiDir, 2mA 50K Pull-Downs on MD15, MD14, MD13, MD11, MD10, MD09 50K Pull-Ups MD12, MD08 MBUS High Data Byte, Bits 8 to 15 Default power up states are defined by pull-up and pull-down internal resistors as shown. Device defaults to external EEPROM for boot up mode. Using external 10K resistors, configure these pins according to Table 4 to change power-up configuration ISL3873 |
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