PC87303 datasheet(6/114 Pages) NSC

6 / 114 page

List of Figures (Continued)

FIGURE 10-13 Reset Timing

107

FIGURE 10-14 Write Data Timing

107

FIGURE 10-15 Read Data Timing

108

FIGURE 10-16 Drive Control Timing

108

FIGURE 10-17 IDE Timing

108

FIGURE 10-18 Compatible Mode Parallel Port Interrupt Timing

109

FIGURE 10-19 Extended Mode Parallel Port Interrupt Timing

109

FIGURE 10-20 Typical Parallel Port Data Exchange

109

FIGURE 10-21 Enhanced Parallel Port Timing

110

FIGURE 10-22 ECP Parallel Port Forward Timing Diagram

111

FIGURE 10-23 ECP Parallel Port Backward Timing Diagram

111

FIGURE 10-24 IRQ Release Delay

112

FIGURE 10-25 PWRGOOD VCC Timing

112

FIGURE 10-26 PWRGOOD MR Timing

112

FIGURE 10-27 Chip Select Timing

113

List of Tables

TABLE 1-1

Pin Descriptions (Alphabetical)

TABLE 2-1

Default Configurations Controlled by Hardware

TABLE 2-2

Index and Data Register Optional Locations

TABLE 2-3

Encoded Drive and Motor Pin Information

TABLE 2-4

Primary and Secondary Drive Address Selection

TABLE 2-5

Parallel Port Addresses

TABLE 2-6

COM Port Selection for UART1

TABLE 2-7

COM Port Selection for UART2

TABLE 2-8

Address Selection for COM3 and COM4

TABLE 2-9

Logical Drive Exchange

TABLE 2-10

Parallel Port Mode

TABLE 3-1

TABLE 3-2

Drive Enable Values

TABLE 3-3

TDR Operation Modes

TABLE 3-4

Media ID Bit Functions

TABLE 3-5

Tape Drive Assignment Values

TABLE 3-6

Write Precompensation Delays

TABLE 3-7

Default Precompensation Delays

TABLE 3-8

Data Rate Select Encoding

TABLE 4-1

Typical Format GAP3 Length Values Based on Drive Data Rate

TABLE 4-2

Typical Format GAP3 Length Values Based on PC Compatible Diskette Media

TABLE 4-3

DENSEL Default Encoding

TABLE 4-4

DENSEL Encoding

TABLE 4-5

Head Settle Time Calculation

TABLE 4-6

Effect of Drive Mode and Data Rate on Format and Write Commands

TABLE 4-7

Effect of GAP and WG on Format and Write Commands

TABLE 4-8

Sector Size Selection

TABLE 4-9

SK Effect on the Read Data Command

TABLE 4-10

Result Phase Termination Values with No Error

TABLE 4-11

SK Effect on Read Deleted Data Command

TABLE 4-12

Maximum Recalibrate Step Pulses Based on R255 and ETR

TABLE 4-13

Scan Command Termination Values

TABLE 4-14

Status Register 0 Termination Codes

TABLE 4-15

Set Track Register Address

TABLE 4-16

Step Rate Time (SRT) Values

PC87303 Datasheet(PDF) 6 Page - National Semiconductor (TI)

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