参数资料
型号: S5933QE
厂商: APPLIEDMICRO INC
元件分类: 总线控制器
英文描述: PCI BUS CONTROLLER, PQFP160
封装: PLASTIC, QFP-160
文件页数: 114/176页
文件大小: 823K
代理商: S5933QE
3-51
PCI BUS OPERATION REGISTERS
S5933
Address Offset
Abbreviation
Register Name
00h
OMB1
Outgoing Mailbox Register 1
04h
OMB2
Outgoing Mailbox Register 2
08h
OMB3
Outgoing Mailbox Register 3
0Ch
OMB4
Outgoing Mailbox Register 4
10h
IMB1
Incoming Mailbox Register 1
14h
IMB2
Incoming Mailbox Register 2
18h
IMB3
Incoming Mailbox Register 3
1Ch
IMB4
Incoming Mailbox Register 4
20h
FIFO
FIFO Register port (bidirectional)
24h
MWAR
Master Write Address Register
28h
MWTC
Master Write Transfer Count Register
2Ch
MRAR
Master Read Address Register
30h
MRTC
Master Read Transfer Count Register
34h
MBEF
Mailbox Empty/Full Status
38h
INTCSR
Interrupt Control/Status Register
3Ch
MCSR
Bus Master Control/Status Register
Table 1. Operation Registers — PCI Bus
PCI BUS OPERATION REGISTERS
The PCI bus operation registers are mapped as 16 consecutive DWORD registers located at the address space
(I/O or memory) specified by the Base Address Register 0. These locations are the primary method of communi-
cation between the PCI and Add-On buses. Data, software-defined commands and command parameters can be
either exchanged through the mailboxes, transferred through the FIFO in blocks under program control, or
transferred using the FIFOs under Bus Master control. Table 1 lists the PCI Bus Operation Registers.
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