KSZ8895 INFINEON [Infineon Technologies AG], KSZ8895 Datasheet - Page 70

• Manufacturer Part Number: KSZ8895
• Description: Integrated 5-Port 10/100 Managed Ethernet Switch with MII/RMII interface
• Manufacturer: INFINEON [Infineon Technologies AG]

Micrel, Inc.
Register 27 (0x1B): Reserved
Register 43 (0x2B):
Register 59 (0x3B):
Register 75 (0x4B):
Register 91 (0x5B):
Register 28 (0x1C): Port 1 Control 12
Register 44 (0x2C): Port 2 Control 12
Register 60 (0x3C): Port 3 Control 12
Register 76 (0x4C): Port 4 Control 12
Register 92 (0x5C): Port 5 Control 12
January 2011
Address
7-0
Address
7
6
5
Name
Reserved
Name
Disable Auto-Negotiation
Forced Speed
Forced Duplex
Reserved
Reserved
Reserved
Reserved
Description
1, disable auto-negotiation, speed and duplex are
decided by bit 6 and 5 of the same register.
0, auto-negotiation is on.
Note: The register bit value is the INVERT of the strap
value at the pin.
1, forced 100BT if AN is disabled (bit 7).
0, forced 10BT if AN is disabled (bit 7).
1, forced full-duplex if (1) AN is disabled or (2) AN is
enabled but failed.
0, forced half-duplex if (1) AN is disabled or (2) AN is
enabled but failed (Default).
Description
N/A Don’t change.
70
Mode
R/W
R/W
R/W
Mode
RO
KSZ8895MQ/RQ/FMQ
For Port 3/Port 4
only. INVERT of
pins
LED[2][1]/LED[5][0]
strap option.
PD(0): Disable
Auto-Negotiation.
PU(1): Enable
Auto-Negotiation.
Note:
LED[2][1]/LED[5][0]
have internal pull
up.
For Port 3/Port 4
only. Pins
LED1_0/PCRS
strap option:
1). Force half-
duplex mode:
LED1_0 pin Pull-
up(1) (default) for
Port 3
PCRS pin Pull-
down (0) (default)
for Port 4
2). Force full-
Duplex mode:
LED1_0 pin Pull-
down(0) for Port 3
PCRS Pull-up (1)
for Port 4.
Note: LED1_0 has
internal pull-up;
PCRS have
internal pull down.
M9999-012011-1.2
Default
Default
0
0
1
0