ibm3206k0424 ETC-unknow, ibm3206k0424 Datasheet - Page 201

• Manufacturer Part Number: ibm3206k0424
• Description: Ibm Processor For Network Resources
• Manufacturer: ETC-unknow

Preliminary
6.2: On-Chip Memory Base Address
This register is used by various entities to generate the base address of the On-Chip Memory (OCM).
Length
Type
Address
Power On Value
Restrictions
6.3: VIMEM Control Memory Base Address
This register defines the starting address of the Control Memory address space. Any time an access is made
to Control Memory, the contents of this register are subtracted from the address before an access to memory
occurs.
Length
Type
Address
Power On Value
Restrictions
pnr25.chapt04.01
August 14, 2000
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31-17
Bit(s)
16-0
Base Address of Real Control Memory
These bits contain the upper 15 bits of the base address of real Control Memory.
These bits are forced to ‘0’ because the real Control Memory base address must start on a 128KB boundary.
17 bits
Read/Write
XXXX 0D9C
X’0010 0000’
The start of virtual address space must begin on a 128KB boundary. For this rea-
son, the lowest 17 bits of this register are forced to ’0’ and are not implemented.
Writes of any value to the low 17 bits of this register are ignored, and a read always
returns ’0’ for the low 17 bits.
32 bits
Read/Write
XXXX 0D14
X’0000 0000’
The start of real control address space must begin on a 128KB boundary. For this
reason, the lowest 17 bits of this register are forced to ’0’ and are not implemented.
Writes of any value to the low 17 bits of this register are ignored, and a read always
returns ’0’ for the low 17 bits.
Description
128KB Boundary Restriction
IBM Processor for Network Resources
9
8
ATM Virtual Memory Logic (VIMEM)
7
6
5
4
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IBM3206K0424
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