Motorola PowerQUICC II MPC8280 Series Reference Manual page 387

9.11.2.24 PCI Hot Swap Register Block
The PCI Hot Swap register block, shown in Figure 9-56, is a set of registers in a capability
structure. It contains the Hot Swap control status register itself, as well as other fields as
required by the capabilities list format.
31
Field
Reset
R/W
Addr
15
Field
Reset
R/W
Addr
Table 9-43 describes the Hot Swap register block fields.
Table 9-43. Hot Swap Register Block Field Descriptions
Bits Name
31–24 —
23–16 HS_CSR
15–8 NXT_PTR
7–0 CAP_ID
9.11.2.25 PCI Hot Swap Control Status Register
Figure 9-57 and Table 9-44 describe the Hot Swap control status register.
23
Field INS
Reset
R/W
Addr
Figure 9-57. Hot Swap Control Status Register
MOTOROLA
Freescale Semiconductor, Inc.
—
0000_0000_0000_0000
NXT_PTR
0000_0000_0000_0110
R/W
Figure 9-56. Hot Swap Register Block
Reserved. Should be cleared.
Hot Swap control status register; see Section 9.11.2.25, "PCI Hot Swap Control
Status Register."
Next pointer—an offset into the device's PCI configuration space for the location
of the next item in the capabilities linked list. A value of 0x00 indicates that this is
the last item in the list.
CompactPCI ® Hot Swap capability ID (read only).
22 21 20
EXT —
Chapter 9. PCI Bridge
For More Information On This Product,
Go to: www.freescale.com
24 23
HS_CSR (See Section 9.11.2.25, "PCI Hot Swap
Control Status Register.")
R/W
0x4A
8 7
CAP_ID
0x48
Description
19 18
LOO —
0000_0000
R/W
0x4A
Configuration Registers
16
0
R
17 16
EIM —
9-65