
Resetting the Devices
Memory Map and Devices
5 - 26
PPC/PMC-8260/DS1
Resetting the Devices
The PPC/PMC-8260/DS1 provides the possibility to reset the following devices in
case of a software hang:
•
PowerQUICC II
•
I/O devices:
– Framers
– Agere T8105
– LED register
A reset of the PowerQUICC II does not reset the I/O devices and vice versa.
PowerQUICC II
To enforce a PowerQUICC II reset after a firmware or application software hang,
program the PowerSPAN II INT<5> signal from the PCI bus as follows:
1. On carrier board configure interrupt INT5 as output
Note: Mailbox registers 5, 6, and 7 are used by the firmware. Using these
PowerSpan II registers will cause firmware malfunction. Therefore, do not use
the mailbox registers 5, 6 and 7.
2. Set up one of PowerSpan II’s mailbox registers (except mailbox registers
5, 6, and 7 because they are used by the firmware) to trigger
PSPAN_INT5 for a minimum of 5 msec
3. Program access to respective mailbox register
The PowerQUICC II is then set into the RESET state (Powerup_RESET).
Содержание PPC/PMC-8260/DS1
Страница 1: ...PPC PMC 8260 DS1 Reference Guide P N 6806800B10A July 2006 ...
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Страница 31: ...1 Introduction ...
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Страница 39: ...2 Installation ...
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Страница 53: ...3 Indicators and Connectors ...
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Страница 64: ...On Board Connectors Indicators and Connectors 3 12 PPC PMC 8260 DS1 ...
Страница 65: ...4 Firmware ...
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Страница 104: ...Code Examples Firmware 4 40 PPC PMC 8260 DS1 ...
Страница 105: ...5 Memory Map and Devices ...
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Страница 132: ...Resetting the Devices Memory Map and Devices 5 28 PPC PMC 8260 DS1 ...
Страница 133: ...6 TDM Channel Configuration ...
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Страница 145: ...A Troubleshooting ...
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Страница 150: ...I 2 PPC PMC 8260 DS1 ...