dm9000a Davicom Semiconductor, Inc., dm9000a Datasheet - Page 40

• Manufacturer Part Number: dm9000a
• Description: Ethernet Controller With General Processor Interface
• Manufacturer: Davicom Semiconductor, Inc.

8.11 Power Down Control Register (PWDOR) - 19
* when selected, the power down value is control by Register 20.0
8.12 (Specified config) Register – 20
Final
Version: DM9000A-17-DS-F01
May 10, 2006
19.15
20.15
20.14
20.13
20.12
-19.9
20.11
-20.8
19.8
19.7
19.6
19.5
19.4
19.3
19.2
19.1
19.0
18.0
20.7
20.6
20.5
Bit
Bit
FORCE_TXSD
MDIX_CNTL MDI/MDIX,
FORCE_FEF
AutoNeg_lpbk
PD10DRV
PD100DL
Bit Name
Reserved
Bit Name
PDchip
PDcom
Reserved
Mdix_fix
PDaeq
PDedo
POLR
PDdrv
TSTSE1
TSTSE2
PDedi
PD10
Value
Default
0, RW
0, RW
0, RW
0, RW
0, RW
0, RW
0, RW
0, RW
0, RW
0, RO
0, RO
Default
0, RW
0, RO
0,RW
0,RW
0,RW
0,RW
0,RW
RO
Reserved
Read as 0, ignore on write
Vendor power down control test
Vendor power down control test
Vendor power down control test
Vendor power down control test
Vendor power down control test
Vendor power down control test
Vendor power down control test
Vendor power down control test
Vendor power down control test
Polarity Reversed
When this bit is set to 1, it indicates that the 10Mbps cable
polarity is reversed. This bit is automatically set and cleared by
10BASE-T module
Vendor test select control
Vendor test select control
Force Signal Detect
1: force SD signal OK in 100M
0: normal SD signal.
Vendor test select control
Reserved
Read as 0, ignore on write
The polarity of MDI/MDIX value
1: MDIX mode
0: MDI mode
Auto-negotiation Loopback
1: test internal digital auto-negotiation Loopback
0: normal.
MDIX_CNTL force value:
When Mdix_down = 1, MDIX_CNTL value depend on the
register value.
Ethernet Controller with General Processor Interface
Description
Description
DM9000A
40