DM9601E ETC1 [List of Unclassifed Manufacturers], DM9601E Datasheet - Page 25

• Manufacturer Part Number: DM9601E
• Description: USB Ethernet MAC Controller with Intergrated 10/100 PHY
• Manufacturer: ETC1 [List of Unclassifed Manufacturers]

10.19 General purpose Register ( 1FH )
10.20 TX SRAM Write Pointer Address Register (20H~21H)
10.21 TX SRAM Read Pointer Address Register (22H~23H)
10.22 RX SRAM Write Pointer Address Register (24H~25H)
10.23 RX SRAM Read Pointer Address Register (26H~27H)
Final
Version: DM9601-DS-F01
June 22, 2002
Bit
7:0
7:0
Bit
7:0
7:0
Bit
7:0
7:0
Bit
7:0
7:0
6:1
Bit
7
0
RESERVED
RWPAH
TWPAH
TWPAL
RWPAL
RRPAH
GEPIO6-1
TRPAH
RRPAL
TRPAL
Name
Name
Name
Name
GEPIO0
Name
0CH,RO
0CH,RO
00H,RO
00H.RO
00H,RO
00H.RO
04H.RO
00H.RO
Default
Default
Default
Default
Default
0,RW
1,RW
0,RO
Reserved
General Purpose
When the correspondent bit of General Purpose Control Register is 1, the value of
the bit is output to pin GEPIO6-1
When the correspondent bit of General Purpose Control Register is 0, the value of
the bit be read is reflected from correspondent pins of GEPIIO6-1
The GEPIOs are mapped to pins GEPIO6 to GEPIO1 respectively
General Purpose
When the correspondent bit of General Purpose Control Register is 1, the value of
the bit is output to pin GEPIO0
When the correspondent bit of General Purpose Control Register is 0, the value of
the bit be read is reflected from pin GEPIO0
GEPIO0 default output 1 to POWER_DOWN internal PHY. Driver need to clear this
POWER_DOWN signal by write “0” when it wants PHY active. If other device need,
it also can refer this signal. This default value can be programmed by EEPROM.
Please refer EEPROM description
TX SRAM write pointer address high byte (21H)
TX SRAM write pointer address low byte (20H)
TX SRAM read pointer address high byte (23H)
TX SRAM read pointer address low byte (22H)
RX SRAM write pointer address high byte (25H)
RX SRAM write pointer address low byte (24H)
RX SRAM read pointer address high byte (27H)
RX SRAM read pointer address low byte (26H)
USB to Ethernet MAC Controller with Integrated 10/100 PHY
Description
Description
Description
Description
Description
DM9601
25