KSZ8842-16MQL Micrel Inc, KSZ8842-16MQL Datasheet - Page 57

• Manufacturer Part Number: KSZ8842-16MQL
• Description: IC SWITCH 10/100 16BIT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KSZ8842-16MQL

• Data Rate: 100Mbps
• Controller Type: Ethernet Switch Controller
• Interface: PCI
• Voltage - Supply: 3.1 V ~ 3.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• No. Of Ports: 1
• Ethernet Type: IEEE 802.3u
• Supply Current: 122mA
• Supply Voltage Range: 3.1V To 3.5V
• Operating Temperature Range: 0°C To +70°C
• Digital Ic Case Style: QFP
• No. Of: RoHS Compliant
• Number Of Primary Switch Ports: 2
• Internal Memory Buffer Size: 32
• Operating Supply Voltage (typ): 3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII
• Power Supply Type: Analog/Digital
• Package Type: PQFP
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 3.5V
• Operating Supply Voltage (min): 3.1V
• Operating Temperature Classification: Commercial
• Interface Type: PCI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-1634 - BOARD EVALUATION KSZ8842-16MQL
• Current - Supply: -
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant
• Other names: 576-1478-5

Bank 3 EEPROM Control Register (0x02): EEPCR
To support an external EEPROM, tie the EEPROM Enable (EEEN) pin to High; otherwise, tie it to Low. If an external
EEPROM is not used, the default chip Base Address (0x300), and the software programs the host MAC address. If an
EEPROM is used in the design (EEPROM Enable pin to High), the chip Base Address and host MAC address are loaded
from the EEPROM immediately after reset. The KSZ8842M allows the software to access (read and write) the EEPROM
directly; that is, the EEPROM access timing can be fully controlled by the software if the EEPROM Software Access bit is
set.
Bank 3 Memory BIST INFO Register (0x04): MBIR
Bank 3 Global Reset Register (0x06): GRR
This register controls the global reset function with information programmed by the CPU.
Micrel Confidential
Bit
15-5
4
3
2-0
Bit
15-13
12
11
10-5
4
3
2-0
Bit
15-1
0
November 2005
Default Value
-
0
-
0x0
Default Value
0x0
-
-
-
-
-
-
Default Value
0x0000
0
R/W
RO
RW
RO
RW
R/W
RO
RO
RO
RO
RO
RO
RO
R/W
RO
RW
Description
Reserved
EESA EEPROM Software Access
1: enable software to access EEPROM through bit 3 to bit 0.
0: disable software to access EEPROM.
EECB EEPROM Status Bit
Data Receive from EEPROM. This bit directly reads the EEDI pin.
EECB EEPROM Control Bits
Bit 2: Data Transmit to EEPROM. This bit directly controls the device’s EEDO pin.
Bit 1: Serial Clock. This bit directly controls the device’s EESK pin.
Bit 0: Chip Select for EEPROM. This bit directly controls the device’s EECS pin.
Description
Reserved
TXMBF TX Memory Bist Finish
When set, it indicates the Memory Built In Self Test completion for the TX Memory.
TXMBFA TX Memory Bist Fail
When set, it indicates the Memory Built In Self Test has failed.
Reserved
RXMBF RX Memory Bist Finish
When set, it indicates the Memory Built In Self Test completion for the RX Memory.
RXMBFA RX Memory Bist Fail
When set, it indicates the Memory Built In Self Test has failed.
Reserved
Description
Reserved
Global Soft Reset
1: software reset is active.
0: software reset is inactive.
Software reset will affect PHY, MAC, QMU, DMA, and the switch core, only the BIU
(base address registers) remains unaffected by a software reset.
57
KSZ8842-16/32 MQL/MVL
Rev. 1.4