DM9010BI DAVICOM [Davicom Semiconductor, Inc.], DM9010BI Datasheet - Page 25

• Manufacturer Part Number: DM9010BI
• Description: Industrial-temperature 10/100 Mbps Single Chip Ethernet Controller With General Processor Interface
• Manufacturer: DAVICOM [Davicom Semiconductor, Inc.]

6.32 General Purpose Control Register 2 (34H)
6.33 General Purpose Register 2 (35H)
6.34 General Purpose Control Register 3 (36H)
6.35 General Purpose Register 3 (37H)
6.36 Processor Bus Control Register (38H)
Preliminary
Version: DM9010BI--DS-P01
January 12, 2010
7~0
7~0
7~0
7~0
6:5
Bit
Bit
Bit
Bit
Bit
7
4
3
2
1
0
IOW_SPIKE
IOR_SPIKE
CURR
Name
GPC2
Name
GPD2
Name
GPC3
Name
GPD3
Name
Reserved
Reserved
Reserved
GPIO
HP0,RW
HP0,RW
HP0,RW
HP0,RW
Default
Default
Default
Default
P00,RW
Default
P0,RW
P0,RW
P0,RW
P0,RW
P0,RW
P1,RW
Industrial-temperature Single Chip Ethernet Controller with General Processor Interface
Define the input/output direction of pins SD23~16, which are used as general
purpose pins when none 32-bit mode and external MII mode, respectively.
General Purpose Register 2 Data
When the correspondent bit of General Purpose Control Register 2 is set, the value
of the bit is reflected to pin SD23~16
When the correspondent bit of General Purpose Control Register 2 is 0, the value
of the bit to be read is reflected from correspondent pins SD23~16
Define the input/output direction of pins SD31~24, which are used as general
purpose pins when none 32-bit mode and external MII mode, respectively.
General Purpose Register 3 Data
When the correspondent bit of General Purpose Control Register 3 is set, the value
of the bit is reflected to pin SD31~24
When the correspondent bit of General Purpose Control Register 3 is 0, the value
of the bit to be read is reflected from correspondent pins SD31~24
General Purpose Control 2
General Purpose Control 3
Reserved
Data Bus Current Driving/Sinking Capability
00: 2mA (default)
01: 4mA
10: 6mA
11: 8mA
Reserved
Enable Schmitt Trigger
1: Pin 35/36/37 (IOR/IOW/CS#) have Schmitt trigger capability.
Reserved
Eliminate IOW spike
1: eliminate about 2ns IOW spike
Eliminate IOR spike
1: eliminate about 2ns IOR spike
Description
Description
Description
Description
Description
DM9010BI
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