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SMC032AF Datasheet(PDF) 14 Page - Numonyx B.V |
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SMC032AF Datasheet(HTML) 14 Page - Numonyx B.V |
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14 / 82 page ![]() Electrical interface SMCxxxAF 14/82 4 Electrical interface 4.1 Electrical description The CompactFlash memory card operates in three basic modes: ● PC card ATA using I/O mode, ● PC card ATA using memory mode, ● True IDE mode, which is compatible with most disk drives. The signal/pin assignments are listed in Table 8 where Low active signals have a ‘–’ prefix. Pin types are Input, Output or Input/Output. The configuration of the card is controlled using the standard PCMCIA Configuration registers starting at address 200h in the attribute memory space of the memory card. For True IDE mode, pin 9 is grounded. Table 9 describes the I/O signals. Inputs are signals sourced from the host while outputs are signals sourced from the card. The signals are described for each of the three operating modes. All outputs from the card are totem pole except the data bus signals that are bi-directional tri-state. Refer to Section 4.2: Electrical specification for definitions of Input and Output type. Table 8. Pin assignment and pin type Pin num PC card memory mode PC card I/O mode True IDE mode Signal name Pin type In, Out type Signal name Pin type In, Out type Signal name Pin type In, Out type 1 GND Ground GND Ground GND Ground 2 D03 I/O I1Z,OZ3 D03 I/O I1Z,OZ3 D03 I/O I1Z,OZ3 3 D04 I/O I1Z,OZ3 D04 I/O I1Z,OZ3 D04 I/O I1Z,OZ3 4 D05 I/O I1Z,OZ3 D05 I/O I1Z,OZ3 D05 I/O I1Z,OZ3 5 D06 I/O I1Z,OZ3 D06 I/O I1Z,OZ3 D06 I/O I1Z,OZ3 6 D07 I/O I1Z,OZ3 D07 I/O I1Z,OZ3 D07 I/O I1Z,OZ3 7 –CE1 I I3U –CE1 I I3U –CS0 I I3Z 8 A10 I I1Z A10 I I1Z A10(1) II1Z 9 –OE I I3U –OE I I3U –ATASEL I I3U 10 A09 I I1Z A09 I I1Z A09(1) II1Z 11 A08 I I1Z A08 I I1Z A08(1) II1Z 12 A07 I I1Z A07 I I1Z A07(1) II1Z 13 VCC Power VCC Power VCC Power 14 A06 I I1Z A06 I I1Z A06(1) II1Z 15 A05 I I1Z A05 I I1Z A05(1) II1Z 16 A04 I I1Z A04 I I1Z A04(1) II1Z 17 A03 I I1Z A03 I I1Z A03(1) II1Z 18 A02 I I1Z A02 I I1Z A02 I I1Z 19 A01 I I1Z A01 I I1Z A01 I I1Z |
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