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TS4GCF133 Scheda tecnica(PDF) 11 Page - Transcend Information. Inc. |
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TS4GCF133 Scheda tecnica(HTML) 11 Page - Transcend Information. Inc. |
11 / 81 page T T TS S S1 1 1G G G~ ~ ~3 3 32 2 2G G GC C CF F F1 1 13 3 33 3 3 133X CompactFlash Card Transcend Information Inc. 11 Signal Name Dir. Pin Description -VS1 -VS2 (PC Card Memory Mode) -VS1 -VS2 (PC Card I/O Mode) -VS1 -VS2 (True IDE Mode) O 33 40 Voltage Sense Signals. -VS1 is grounded on the Card and sensed by the Host so that the CompactFlash Storage Card CIS can be read at 3.3 volts and -VS2 is reserved by PCMCIA for a secondary voltage and is not connected on the Card. This signal is the same for all modes. This signal is the same for all modes. -WAIT (PC Card Memory Mode) -WAIT (PC Card I/O Mode) IORDY (True IDE Mode – Except Ultra DMA Mode) -DDMARDY (True IDE Mode – Ultra DMA Write Mode) DSTROBE (True IDE Mode – Ultra DMA Read Mode) O 42 The -WAIT signal is driven low by the CompactFlash Storage Card to signal the host to delay completion of a memory or I/O cycle that is in progress. This signal is the same as the PC Card Memory Mode signal. In True IDE Mode, except in Ultra DMA modes, this output signal may be used as IORDY. In True IDE Mode, when Ultra DMA mode DMA Write is active, this signal is asserted by the host to indicate that the device is read to receive Ultra DMA data-in bursts. The device may negate -DDMARDY to pause an Ultra DMA transfer. In True IDE Mode, when Ultra DMA mode DMA Write is active, this signal is the data out strobe generated by the device. Both the rising and falling edge of DSTROBE cause data to be latched by the host. The device may stop generating DSTROBE edges to pause an Ultra DMA data-out burst. -WE (PC Card Memory Mode) -WE (PC Card I/O Mode) -WE (True IDE Mode) I 36 This is a signal driven by the host and used for strobing memory write data to the registers of the CompactFlash Storage Card when the card is configured in the memory interface mode. It is also used for writing the configuration registers. In PC Card I/O Mode, this signal is used for writing the configuration registers. In True IDE Mode, this input signal is not used and should be connected to VCC by the host. |
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