Artesyn MVME2502 Installation and Use (April 2015) User Manual Page 130
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Memory Maps and Registers
MVME2502 Installation and Use (6806800R96E)
130
5.5.21 PLD Watchdog Timer Count Value Register
The MVME2502 provides a watchdog timer count value register.
5.6 External Timer Registers
The MVME2502 provides a set of tick timer registers to access the three external timers
implemented in the timers/registers PLD. These registers are 32-bit and are word writable. The
following sections describe the timer prescaler and control register:
5.6.1 Prescaler Register
The prescaler adjust value is determined by this formula:
Field Description
Count Count. These bits define the watchdog timer count value. When the
watchdog counter is enabled, it will count up from zero (reset value) with a 1
ms resolution until it reaches the COUNT value set by this register. Watchdog
will generate a soft reset signal if it bites.
Setting this register to 0xEA60 or 60,000 counts will provide a watchdog
timeout of 60 seconds.
Table 5-24 PLD Watchdog Timer Count Register
REG PLD Watchdog Timer Count Value- 0xffc80608
Bit 15:0
Field Count Value
OPER R
RESET 0x0000
Field Description
Count
Value
Count value. These bits indicate the current value of the watch dog counter.
- MVME2502 1
- Trademarks 2
- Contact Address 2
- Contents 3
- List of Tables 10
- List of Figures 13
- About this Manual 15
- Abbreviations 16
- Conventions 17
- Summary of Changes 19
- Safety Notes 21
- Operation 22
- Installation 22
- Cabling and Connectors 23
- Sicherheitshinweise 25
- Kabel und Stecker 28
- Batterie 28
- Umweltschutz 29
- Introduction 31
- 1.2 Standard Compliances 33
- 1.3 Mechanical Data 35
- 1.4 Ordering Information 35
- 1.5 Product Identification 37
- Chapter 2 39
- 2.1 Overview 39
- Shipment Inspection 40
- 2.3 Requirements 41
- 2.3.2 Power Requirements 42
- 2.4 Configuring the Board 43
- 2.5 Installing Accessories 44
- 2.5.2 PMC/XMC Support 46
- Installation Procedure 46
- HDMNTKIT2 48
- MVME2502 are: 53
- Chapter 3 55
- 3.1 Board Layout 55
- 3.2 Front Panel 57
- 3.3 LEDs 58
- Table 3-1 Front Panel LEDs 59
- 3.3.2 On-board LEDs 60
- 3.4 Connectors 61
- 3.4.1.3 USB Connector (J5) 63
- 3.4.1.4 VMEBus P1 Connector 64
- IRQ4 ADD 35 NC NC 65
- 3.4.1.5 VMEBus P2 Connector 66
- 3.4.2 On-board Connectors 67
- 3.4.2.2 PMC Connectors 68
- 3.4.2.3 JTAG Connector (P6) 74
- 3.4.2.4 COP Connector P50(15) 75
- 3.4.2.5 XMC Connector (XJ1) 76
- 3.4.2.6 XMC Connector (XJ2) 77
- 3.5 Switches 79
- 4.2 Chipset 84
- 4.2.3 PCI Express Interface 85
- 4.2.9 DMA Controller 87
- 4.2.14 P2020 Strapping Pins 89
- 4.3 System Memory 92
- 4.4 Timers 92
- 4.5 Ethernet Interfaces 93
- 4.6 SPI Bus Interface 94
- 4.6.3 Firmware Redundancy 95
- 4.7 Front UART Control 97
- 4.8 Rear UART Control 98
- 4.9 PMC/XMC Sites 98
- 4.9.1 PMC Add-on Card 99
- 4.9.2 XMC Add-on Card 99
- 4.10 SATA Interface 100
- 4.11 VME Support 100
- 4.12 USB 100
- C Devices 101
- 4.14 Reset/Control CPLD 102
- 4.15 Power Management 102
- Functional Description 103
- 4.16 Clock Structure 104
- 4.17 Reset Structure 105
- 4.18 Thermal Management 105
- 4.19 Real-Time Clock Battery 106
- 4.20 Debugging Support 106
- 4.20.2 JTAG Chain and Board 107
- 4.20.3 Custom Debugging 108
- Memory Maps and Registers 111
- 5.3 Flash Memory Map 112
- 5.4 Linux Devices Memory Map 112
- 5.5.1 PLD Revision Register 114
- 5.5.2 PLD Year Register 115
- 5.5.3 PLD Month Register 115
- 5.5.4 PLD Day Register 115
- 5.5.5 PLD Sequence Register 116
- 5.5.11 PLD Boot Bank Register 121
- 5.5.13 PLD Test Register 1 124
- 5.5.14 PLD Test Register 2 125
- 5.5.17 EMMC Reset Register 128
- 5.6 External Timer Registers 130
- 5.6.2 Control Registers 131
- Boot System 135
- 6.3 Boot Options 136
- 6.6 Updating U-Boot 143
- Programming Model 145
- 7.3 Interrupt Controller 149
- 7.4 I2C Bus Device Addressing 150
- 7.5 Ethernet PHY Address 150
- 7.6.1 MRAM 151
- 7.6.2 Real Time Clock 151
- 7.6.3 Quad UART 151
- 7.6.4 LBC Timing Parameters 152
- 7.7 Clock Distribution 153
- 7.7.1 System Clock 154
- 7.7.2 Real Time Clock Input 155
- Replacing the Battery 157
- Related Documentation 161
- B.2 Manufacturers’ Documents 162
- B.3 Related Specifications 162
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