Switch Configuration And Status Registers; Figure 15.3 Switch Configuration And Status Space Organization - Renesas IDT 89HPES48H12G2 User Manual

Pci express switch
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IDT Register Organization
Notes
PES48H12G2 User Manual

Switch Configuration and Status Registers

This section outlines switch configuration and status registers. These registers are accessible using
global address space access registers (i.e., GASAADDR and GASADATA), SMBus, or serial EEPROM.
Figure 15.3 shows the organization of the address space. Registers in this address range are referenced as
REGNAME where REGNAME represents the register name in Table 15.6. Offset addresses for these regis-
ters can be found in Table 15.6 and register definitions are provided in Chapter 17. Reading from or writing
to an address not defined in Table 15.6 completes successfully but has an undefined effect.

Figure 15.3 Switch Configuration and Status Space Organization

Switch Control & Status
Switch Partition and Port
Configuration Registers
Reserved
Protection Registers
SerDes Control and
Status Registers
GPIO, Hot-Plug, SMBus
and GPE Registers
Reserved
15 - 12
0x0000
0x0100
0x0500
0x0700
0x0800
0x0A90
0x0AF0
0x1FFF
April 5, 2013

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