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EP7309/
11/12 Us
er
’
s
Manual -
DS508UM
4
iii
Copyri
ght Ci
rrus L
ogic
, Inc
. 2003
1
2
3
4
5
6
7
8
...
157
158
EP73xx User’s Guide
1
1Contents
4
Chapter 5. System Registers
5
Chapter 6. Processor Support
6
Chapter 7. SDRAM Controller
6
Chapter 9. LCD Interface
6
Appendix A. Boot Code
8
Contents
9
List of Figures
10
List of Tables
12
Chapter 1
15
1Introduction
15
Overview
15
Memory Map and Register List
16
Internal Register Map
17
Pin Description
20
External Signal Functions
21
Output Bi-Directional Pins
24
Block Diagrams
25
References
26
Chapter 2
27
2CPU Core
27
Programming Register List
27
Programming Examples
28
CPU Core
29
Write Buffer
32
CPU Register Definitions
33
User FIQ IRQ SVC Undef Abort
34
CPU Clocks
35
On-Chip PLL
36
PLL Register Descriptions
37
CPU State Control
38
Idle State
39
Power Up Sequence
40
Table 3-1: Timer Registers
43
Timer Register Descriptions
45
Chapter 4
47
4Interrupt Controller
47
Interrupt Register List
47
Interrupt Operation
50
Interrupt Listing
51
Operating State
52
Standby State
53
Interrupt Controller
54
End-Of-Interrupt Locations
59
Chapter 5
61
5System Registers
61
System Register List
62
MaverickKey
64
Unique-ID
64
BUZ output reflects
65
EXPCLK is
66
System Registers
68
0032-bit
71
1016-bit
71
11Reserved
71
CLKSEL (PE[2])input,latched
72
Chapter 6
75
6Processor Support
75
Internal Boot Mode
76
External Boot Mode
76
CS0 and the
77
Endianess
78
Endian Byte Addressing
79
Processor Support
80
Chapter 7
81
7SDRAM Controller
81
SDRAM Register List
81
SDRAM Register Descriptions
83
SDRAM Controller
84
SRAM/Expansion Bus Controller
89
Chapter 9
91
9LCD Interface
91
LCD Register List
91
LCD DMA Controller
93
Gray Scale
94
4 Bits per pixel
95
2 Bits per pixel
95
1 Bit per pixel
95
Hardware Interface
96
Color LCDs
96
LCD Register Descriptions
97
(PALMSW)
98
FBADDR)
99
LCD Interface
100
Operational Overview
102
Keyboard Interface
103
Chapter 11
105
11General Purpose I/O (GPIO)
105
Introduction
105
Features
105
Programming Example
106
Register Descriptions
106
Chapter 12
107
12PWM Interface
107
Block Diagram
107
PWM Register Descriptions
109
PWM Interface
110
PD0 / LEDFLSH)tobetoggledata
111
Register Definitions
112
Chapter 14
113
14JTAG Interface
113
Boundary Scan
114
Debug Modes
115
Debug/ICE Test Mode
116
Hi-Z (System) Test Mode
116
JTAG Interface
117
ADCCLK)
121
Bit Descriptions:
122
(SYNCIO[6:0])
123
SSI Port
124
Chapter 16
125
16DAI/CODEC/SSI2
125
DAI/CODEC/SSI2 Register List
126
DAI Interface
128
DAI Clock Generation
129
Master/Slave SSI2 Interface
131
Read Back of Residual Data
132
CODEC Sound Interface
134
DAI Registers
135
DAI Control Register (DAIR)
136
Full Bit Descriptions
137
DAI Data Register 0 (DAIDR0)
138
DAI Data Register 1 (DAIDR1)
139
DAI Data Register 2 (DAIDR2)
140
DAI Status Register (DAISR)
140
DAI/CODEC/SSI2
141
SSI2 Registers
144
CODEC Register
144
SIR Encoder
150
UART and SIR Encoder
153
WRDLEN Word Length
153
Appendix A
155
ABoot Code
155
Boot Code
156
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