Emerson PMT1 Manuel D’Utilisation
PMC/PCI Interface:
PCI9060ES Initialization
10002367-02
PmT1 and PmE1 User’s Manual
7-3
Shared Runtime Registers
The Shared Runtime registers are a collection of mailbox, interrupt, doorbell, and configura-
tion registers that may be accessed from the local bus and the PCI bus.
tion registers that may be accessed from the local bus and the PCI bus.
Table 7-3:
Shared Runtime Registers
PCI9060ES INITIALIZATION
The following tables describe how the PCI9060ES PCI Configuration, Local Configuration,
and Shared Runtime registers are initialized to set up the PCI bridge and turn on the neces-
sary functions.
and Shared Runtime registers are initialized to set up the PCI bridge and turn on the neces-
sary functions.
The PCI bridge is used to decode portions of the local address bus and the PCI address bus.
At reset, the PCI9060ES reads a serial EEPROM to initialize the PCI bridge. Five long words of
data are stored in the 128-kilobyte EEPROM. These long words sequentially program the
PCI Configuration registers listed in
At reset, the PCI9060ES reads a serial EEPROM to initialize the PCI bridge. Five long words of
data are stored in the 128-kilobyte EEPROM. These long words sequentially program the
PCI Configuration registers listed in
and two Shared Runtime registers–Mailbox
registers 0 and 1–listed in
.
C100,00A0
20
Long
Local Bus Base Address register
(Direct Master to PCI memory)
(Direct Master to PCI memory)
C100,00A4
24
Long
Local Base Address For Direct Master to PCI
I/O/CFG register
I/O/CFG register
C100,00A8
28
Long
PCI Base Address register (Direct Master to PCI)
C100,00AC
2C
Long
PCI Configuration Address register
(Direct Master to PCI IO/CFG)
(Direct Master to PCI IO/CFG)
Local Bus
Address (hex)
:
PCI Offset
Address (hex):
:
Size:
Register Name
:
C100,00C0
40
Long
Mailbox register 0
C100,00C4
44
Long
Mailbox register 1
C100,00C8
48
Long
Mailbox register 2
C100,00CC
4C
Long
Mailbox register 3
C100,00D0-DF
50-5C
—
reserved
C100,00E0
60
Long
PCI to Local Doorbell register
C100,00E4
64
Long
Local to PCI Doorbell register
C100,00E8
68
Long
Interrupt Control/Status
C100,00EC
6C
Long
EEPROM Control, PCI Command Codes,
User I/O & Init Control register
User I/O & Init Control register
C100,00F0
70
Long
PCI Configuration ID register
Local Bus
Address (hex)
:
PCI Offset
Address (hex):
Size:
Register Name
:
(continued)