Digi NS9750 Uživatelský manuál stáhnout pdf (Strana 43)

BBus peripheral address map

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BBus peripheral address map

The BBus bridge configuration registers are located at base address 0xA040 0000. The BBus

peripherals are located at base address 0x9000 0000 and span a 256 MB address space. Each BBus

peripheral, with the exception of the SER controllers, resides in a 1 MB address space. Table 23

specifies the address space given to each peripheral.

0xA030 0000 – 0xA03F FFFF 1 MB PCI arbiter

0xA040 0000 – 0xA04F FFFF 1 MB BBus-to-AHB bridge

0xA050 0000 – 0xA05F FFFF 1 MB Reserved

0xA060 0000 – 0xA06F FFFF 1 MB Ethernet Communication module

0xA070 0000 – 0xA07F FFFF 1 MB Memory controller

0xA080 0000 – 0xA08F FFFF 1 MB LCD controller

0xA090 0000 – 0xA09F FFFF 1 MB System Control module

0xA0A0 0000 – 0xFFFF FFFF 1526 MB Reserved

Base address Peripheral

0x9000 0000 BBus DMA controller

0x9010 0000 USB controller

0x9020 0000 SER Port B

0x9020 0040 SER Port A

0x9030 0000 SER Port C

0x9030 0040 SER Port D

0x9040 0000 IEEE 1284 controller

0x9050 0000 I

C controller

0x9060 0000 BBus utility

Table 23: BBus peripheral address map

Address range Size System functions

Table 22: System address memory map

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 87 88

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Digi NS9750 Uživatelský manuál Strana 43