PC87311AVF datasheet(75/78 Pages) NSC

部件名	PC87311AVF

功能描述	PC87311A/PC87312 (SuperI/OTM II/III) Floppy Disk Controller with Dual UARTs, Parallel Port, and IDE Interface

PDF	78 Pages

Scroll/Zoom	100%

制造商	NSC [National Semiconductor (TI)]

网页	http://www.national.com

标志

75 / 78 page

100 Reference (Continued)

102 EXAMPLE FOUR DRIVE CIRCUIT USING THE PC87311A12

Hex Buffers

ICC e 40 mA

open collector

TLF11362 – 35

FIGURE 10-1 PC87311A12 Four Floppy Drive Circuit

TABLE 10-1 PC87311A12 Four Floppy Drive Encoding

MTR0

DR1

DR0

Result

DRV0 and MTR0 Active

DRV1 and MTR1 Active

DRV2 and MTR2 Active

DRV3 and MTR3 Active

DRV0 Active and MTR0 Inactive

DRV1 Active and MTR1 Inactive

DRV2 Active and MTR2 Inactive

DRV3 Active and MTR3 Inactive

The equations shown in

Figure 10-2 define the signals of the PC87311A12 IDE pins for primary IDE addresses A complete IDE

interface using these pins is shown in

Figure 10-3

Equations

Comments

HCS0 e A9 A8 A7 A6 A5 A4 A3 AEN

Active at 1F0 – 1F7

HCS1 e A9 A8 A7 A6 A5 A4 A3 A2 A1 AEN

Active at 3F6 3F7

IDELO e HCS0 (RD a WR) a HCS1

(WR A0) a RD

Write 1F0 – 1F7 3F6 Read 1F0 – 1F7 3F6 3F7

IDEHI e IOCS16 HCS0 (RD a WR) SELAT

Read or Write 1F0 – 1F7 in AT Mode

IDED7 (read) e HCS0 RD a (HCS1 A0) RD

Sources D7 during Read 1F0 – 1F7 and 3F6

IDED7 (write) e WR HCS0 a (HCS1 A0)

D7 during Write 1F0 – 1F7 and 3F6

FIGURE 10-2 IDE Interface Signal Equations

PC87311AVF 数据表(PDF) 75 Page - National Semiconductor (TI)

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