DS785UM1
©
Copyright 2007 Cirrus Logic, Inc.
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EP93xx User’s Guide
Figure 25-1. Different Types of Touch Screens ..........................................................................................25-2
Figure 25-2. 8-Wire Resistive Interface Switching Diagram .......................................................................25-5
Figure 25-3. 4-Wire Analog Resistive Interface Switching Diagram............................................................25-6
Figure 25-4. Analog Resistive Touch Screen Scan Flow Chart ..................................................................25-9
Figure 25-5. 5-Wire Analog Resistive Interface Switching Diagram..........................................................25-11
Figure 25-6. 5-Wire Feedback (7-Wire) Analog Resistive Interface Switching Diagram ...........................25-12
Figure 25-7. Power Down Detect Press Switching Diagram .....................................................................25-13
Figure 25-8. Other Switching Diagrams ....................................................................................................25-14
Figure 25-9. Measure Resistance Switching Diagram ..............................................................................25-15
Figure 26-1. Key Array Block Diagram ...................................................................................................26-1
Figure 26-2. 8 x 8 Key Array Diagram ......................................................................................................26-3
Figure 26-3. Apparent Key 00H...................................................................................................................26-4
Figure 27-1. IDE Interface Signal Connections ...........................................................................................27-2
Figure 28-1. System Level GPIO Connectivity ............................................................................................28-2
Figure 28-2. Signal Connections Within the Standard GPIO Port Control Logic
(Ports C, D, E, G, H) ....................................................................................................................................28-4
Figure 28-3. Signal Connections Within the Enhanced GPIO Port Control Logic
(Ports A, B, F) ..............................................................................................................................................28-5
Tables
Table P-1. Frequency, Package, Applicable EP93xx Processor.................................................................. P-1
Table P-2. Chapter Number and Function, Applicable EP93xx Processor .................................................. P-1
Table 1-1. EP93xx Maximum Clock Rates, Package Type and Number of Balls .........................................1-1
Table 1-2. EP93xx Features Summary .........................................................................................................1-2
Table 2-1. AHB Arbiter Priority Scheme......................................................................................................2-10
Table 2-2. AHB Peripheral Address Range.................................................................................................2-11
Table 2-3. APB Peripheral Address Range.................................................................................................2-12
Table 2-4. ARM920T Core Operating Modes..............................................................................................2-13
Table 2-5. Register Organization Summary ................................................................................................2-14
Table 2-6. CP15 ARM920T Register Description........................................................................................2-15
Table 2-7. Global Memory Map for the Two Boot Modes............................................................................2-16
Table 2-8. Internal Register Map ................................................................................................................2-17
Table 3-1. Saturation for Non-accumulator Instructions................................................................................3-5
Table 3-2. Accumulator Bit Formats for Saturation .......................................................................................3-5
Table 3-3. Comparison Relationships and Their Results ..............................................................................3-7
Table 3-4. ARM® Condition Codes and Crunch Compare Results...............................................................3-7
Table 3-5. Condition Code Definitions.........................................................................................................3-15