参数资料
型号: SPD6729QCE
厂商: INTEL CORP
元件分类: 总线控制器
英文描述: PCMCIA BUS CONTROLLER, PQFP208
封装: MQFP-208
文件页数: 94/116页
文件大小: 1442K
代理商: SPD6729QCE
PCI-to-PC Card (PCMCIA) Controller — PD6729
Datasheet
79
These bits are used in comparing PCI Address bits 31-24 for each memory window (0-4). These
bits are used in conjunction with the System Memory Map 0-4 Start Address and System
Memory Map 0-4 End Address registers.
10.7.3
Misc Control 3
Bit 6 — Multimedia Expand
This bit allows 24-bit video from the PC Card. If the Multimedia Arm bit and Multimedia Enable
bit are both set to ‘1’, this bit causes CE2 and D[15:8] to be tristated on the 16-bit PC Card bus, and
also tristates A[25:4].
10.7.3.1
Bit 7 — Multimedia Arm
No multimedia operation can take place without first setting this bit to ‘1’; the bit provides an
overriding control mechanism. By setting only bit 0 of index 16h, the Multimedia Arm bit ensures
that multimedia operation is not inadvertently set by software or point enablers.
10.8
Device Identification and Implementation Scheme
There are four byte-wide registers with read-only device information, and four byte-wide read/
write registers that contain specific system-implementation information. These registers are found
in revisions of the PD6729 that have the value 21h/E1h in the Chip Information register (index
1Fh).
Register Name: Misc Control 3
Index: 2Fh Extended Index: 25h
Register Per: socket
Register Compatibility Type: ext.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Multimedia
Arm
Multimedia
Expand
Reserved
R/W:0
0
Multimedia expand disabled.
1
Multimedia expand enabled.
0
Multimedia Arm disabled.
1
Multimedia Arm enabled.
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