KSZ8851SNL-BBE-EVAL Micrel Inc, KSZ8851SNL-BBE-EVAL Datasheet - Page 59

• Manufacturer Part Number: KSZ8851SNL-BBE-EVAL
• Description: BOARD EVAL MAC/PHY FOR KSZ8851
• Manufacturer: Micrel Inc
• Series: LinkMD®r

Specifications of KSZ8851SNL-BBE-EVAL

• Design Resources: BeagleBoard Zippy2
• Main Purpose: Interface, Ethernet Controller (PHY and MAC)
• Embedded: No
• Utilized Ic / Part: KSZ8851SNL
• Primary Attributes: 1 Port, 100BASE-TX/10BASE-T
• Secondary Attributes: SPI Interface, LinkMD Cable Diagnostics
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-3602; KSZ8851SNL-BBE-EVL; ZIPPY2

Flow Control High Watermark Register (0xB2 – 0xB3): FCHWR
This register is used to control the flow control for high watermark in QMU RX queue.
Flow Control Overrun Watermark Register (0xB4 – 0xB5): FCOWR
This register is used to control the flow control for overrun watermark in QMU RX queue
0xB6 – 0xBF: Reserved
Chip ID and Enable Register (0xC0 – 0xC1): CIDER
This register contains the chip ID and the chip enable bit.
0xC2 – 0xC5: Reserved
Chip Global Control Register (0xC6 – 0xC7): CGCR
This register contains the global control for the chip function.
Indirect Access Control Register (0xC8 – 0xC9): IACR
This register contains the indirect control for the MIB counter (Write IACR triggers a command. Read access is
determined by bit 12).
August 2009
Micrel, Inc.
Bit
15-12
11-0
Bit
15-12
11-0
Bit
15-8
7-4
3-1
0
Bit
15-12
11-10
9
8
7-0
-
-
0x0
0x0
0x0
Default Value
0x0300
Default Value
0x0040
Default
0x88
0x7
0x1
Default
0x0
0x2
0x35
R/W
RW
RW
R/W
RW
RW
R/W
RO
RO
RO
RW
R/W
RW
RW
RW
R/W
RW
Description
Reserved
FCHWC Flow Control High Watermark Configuration
These bits are used to define the QMU RX queue high watermark configuration. It is in
double words count and default is 3.072 KByte available buffer space out of 12 KByte.
Description
Reserved
FCLWC Flow Control Overrun Watermark Configuration
These bits are used to define the QMU RX queue overrun watermark configuration. It is in
double words count and default is 256 Bytes available buffer space out of 12 Kbyte.
Description
Family ID
Chip family ID
Chip ID
0x7 is assigned to KSZ8851SNL
Revision ID
Reserved
Description
Reserved
Reserved
LEDSEL0
This bit sets the LEDSEL0 selection for LED1 and LED0.
PHY port LED indicators, defined as below:
Reserved
Reserved
LED1 (pin32)
LED0 (pin1)
LINK/ACT
100BT
0
59
LEDSEL0
LINK
ACT
1
KSZ8851SNL/SNLI
M9999-083109-2.0