DP83257VF National Semiconductor, DP83257VF Datasheet - Page 64

• Manufacturer Part Number: DP83257VF
• Description: IC FDDI LAYER CTRLR 160PQFP
• Manufacturer: National Semiconductor

Specifications of DP83257VF

• Controller Type: physical layer controller
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 160-BFQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Supply: -
• Interface: -
• Other names: *DP83257VF

D0 –D6
D7
5 0 Registers
5 20 CURRENT STATE COUNT REGISTER (CSCR)
The Current State Count Register takes a snap-shot of the State Counter during every Control Bus Interface read cycle of this
register
During a Control Bus Interface write cycle the Control Bus Write Command Reject bit (CCR) of the Interrupt Condition Register
(ICR) will be set to 1 and will ignore a write cycle
ACCESS RULES
Bit
SCLSCD
ADDRESS
D7
13h
CSC0 –CSC6
SCLSCD
Symbol
CSC6
D6
(Continued)
CURRENT STATE COUNT BIT
STATE COUNTER LINE STATE CHANGE DETECTION
Always
READ
CSC5
D5
Write Reject
WRITE
CSC4
D4
k
CSC3
0 –6
D3
64
l
Snapshot of the State Counter
Description
CSC2
D2
CSC1
D1
CSC0
D0