
I/O-Bus
Memory Map and Devices
5 - 18
PPC/PMC-8260/DS1
I/O-Bus
As you can see in the following figure, the 8-bit I/O devices of the PPC/PMC-
8260/DS1 (boot flash, four framers, Agere T8105, and LED register) are connected
to the 64-bit wide PowerPC 60x bus. This is done via a bi-directional data buffer
(not shown below) which isolates these slow devices from the high-speed SDRAM
on the 60x bus.
Figure 15:
I/O Bus
Boot Flash PROM
The PPC/PMC-8260/DS1 module provides a 2 MByte on-board boot flash PROM
which is 8 bit wide. The access time of the flash PROM is 120 ns.
Table 31:
Flash PROM Access on 60x Bus
Device
Size
Width
60x Bus Address
Controlled by Line
Flash PROM
2 MByte
8 bit
Programmable
(default:
FE000000
16
)
CS0
Summary of Contents for PPC/PMC-8260/DS1
Page 1: ...PPC PMC 8260 DS1 Reference Guide P N 6806800B10A July 2006 ...
Page 8: ...viii PPC PMC 8260 DS1 ...
Page 22: ...xxii PPC PMC 8260 DS1 ...
Page 26: ...xxvi PPC PMC 8260 DS1 ...
Page 30: ...xxx PPC PMC 8260 DS1 ...
Page 31: ...1 Introduction ...
Page 32: ......
Page 39: ...2 Installation ...
Page 40: ......
Page 53: ...3 Indicators and Connectors ...
Page 54: ......
Page 64: ...On Board Connectors Indicators and Connectors 3 12 PPC PMC 8260 DS1 ...
Page 65: ...4 Firmware ...
Page 66: ......
Page 104: ...Code Examples Firmware 4 40 PPC PMC 8260 DS1 ...
Page 105: ...5 Memory Map and Devices ...
Page 106: ......
Page 132: ...Resetting the Devices Memory Map and Devices 5 28 PPC PMC 8260 DS1 ...
Page 133: ...6 TDM Channel Configuration ...
Page 134: ......
Page 145: ...A Troubleshooting ...
Page 146: ......
Page 148: ...A 4 PPC PMC 8260 DS1 ...
Page 150: ...I 2 PPC PMC 8260 DS1 ...