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CL-PD6722 Datasheet(PDF) 43 Page - Cirrus Logic |
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CL-PD6722 Datasheet(HTML) 43 Page - Cirrus Logic |
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43 / 128 page  CL-PD6710/’22 ISA–to–PC-Card Host Adapters May 1997 43 PRELIMINARY DATA SHEET v3.1 CHIP CONTROL REGISTERS Bit 6 — Card Reset* This bit determines whether the RESET signal (see page 18) to the card is active or inactive. When the Card Enable bit (see page 41) is ‘0’, the RESET signal to the card will be high-imped- ance. See Chapter 10 for further description of ATA mode functions. Bit 7 — Ring Indicate Enable This bit determines whether the -STSCHG input pin is used to activate the IRQ15 pin in conjunc- tion with Misc Control 2, IRQ15 Is RI Out (see page 62). This bit has no significance when the card socket is configured for memory card operation. 0 The RESET signal to the card socket is set active (high for normal, low for ATA mode). 1 The RESET signal to the card socket is set inactive (low for normal, high for ATA mode). 0 BVD1/-STSCHG pin is status change function. 1 BVD1/-STSCHG pin is ring indicate input pin from card. |
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