DP83256VF-AP NSC [National Semiconductor], DP83256VF-AP Datasheet - Page 73
DP83256VF-AP
Manufacturer Part Number
DP83256VF-AP
Description
Manufacturer
NSC [National Semiconductor]
Datasheet
1.DP83256VF-AP.pdf
(144 pages)
- Current page: 73 of 144
- Download datasheet (988Kb)
Bit
D0
D1
D2
D3
D4
D5
D6
D7
5 0 Registers
5 29 RECEIVE CONDITION COMPARISON REGISTER A (RCCRA)
The Receive Condition Comparison Register A ensures that the Control Bus must first read a bit modified by the PLAYER
device before it can be written to by the Control Bus Interface
The current state of RCRA is automatically written into the Receive Condition Comparison Register A (i e RCCRA
during a Control Bus Interface read cycle of RCRA
During a Control Bus Interface write cycle the PLAYER
Condition Register (ICR) to 1 and prevent the setting or clearing of a bit within RCRA when the value of a bit in RCRA differs
from the value of the corresponding bit in the Receive Condition Comparison Register A
ACCESS RULES
LSUPIC
Symbol
NSDC
QLSC
HLSC
MLSC
NLSC
NTC
LSCC
LSUPIC
D7
ADDRESS
1Ch
NO SIGNAL DETECT COMPARISON The comparison bit for the No Signal Detect bit (NSD) of the Receive
Condition Register A (RCRA)
QUIET LINE STATE COMPARISON The comparison bit for the Quiet Line State bit (QLS) of the Receive
Condition Register A (RCRA)
HALT LINE STATE COMPARISON The comparison bit for the Halt Line State bit (HLS) of the Receive Condition
Register A (RCRA)
MASTER LINE STATE COMPARISON The comparison bit for the Master Line State bit (MLS) of the Receive
Condition Register A (RCRA)
NOISE LINE STATE COMPARISON The comparison bit for the Noise Line State bit (NLS) of the Receive
Condition Register A (RCRA)
NOISE THRESHOLD COMPARISON The comparison bit for the Noise Threshold bit (NT) of the Receive
Condition Register A (RCRA)
LINE STATE CHANGE COMPARISON The comparison bit for the Line State Change bit (LSC) of the Receive
Condition Register A (RCRA)
LINE STATE UNKNOWN AND PHY INVALID COMPARISON The comparison bit for the Line State Unknown
and PHY Invalid bit (LSUPI) of the Receive Condition Register A (RCRA)
LSCC
D6
(Continued)
Always
READ
NTC
D5
NLSC
D4
WRITE
Always
a
MLSC
device will set the Conditional Write Inhibit bit (CWI) of the Interrupt
D3
73
Description
HLSC
D2
QLSC
D1
NSDC
D0
e
RCRA)
a
Related parts for DP83256VF-AP
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Thin SOT23 1A Load Step-Down DC-DC Regulator
Manufacturer:
NSC [National Semiconductor]
Datasheet:
Part Number:
Description:
TRI-STATE Dual Receiver
Manufacturer:
NSC [National Semiconductor]
Datasheet:
Part Number:
Description:
Hex MOS Drivers
Manufacturer:
NSC [National Semiconductor]
Datasheet:
Part Number:
Description:
Printer Solenoid Driver
Manufacturer:
NSC [National Semiconductor]
Datasheet:
Part Number:
Description:
Quad High Current Peripheral Driver
Manufacturer:
NSC [National Semiconductor]
Datasheet:
Part Number:
Description:
(RS-422/RS-423) Line Drivers with TRI-STATE Outputs
Manufacturer:
NSC [National Semiconductor]
Datasheet:
Part Number:
Description:
Multipoint RS485/RS422 Transceivers/Repeaters
Manufacturer:
NSC [National Semiconductor]
Datasheet:
Part Number:
Description:
Low Power EIA-RS-485 Transceiver with Sleep Mode
Manufacturer:
NSC [National Semiconductor]
Datasheet:
Part Number:
Description:
BTL Handshake Transceiver
Manufacturer:
NSC [National Semiconductor]
Datasheet:
Part Number:
Description:
Octal 80-Bit Static Shift Register
Manufacturer:
NSC [National Semiconductor]
Datasheet:
Part Number:
Description:
PUSH BUTTON PULSE DIALER CIRCUITS
Manufacturer:
NSC [National Semiconductor]
Datasheet:
Part Number:
Description:
Hex Schmitt Trigger with Extended Input Voltage
Manufacturer:
NSC [National Semiconductor]
Datasheet:
Part Number:
Description:
Microprocessor Real Time Clock
Manufacturer:
NSC [National Semiconductor]
Datasheet:
Part Number:
Description:
Dual Line Receivers
Manufacturer:
NSC [National Semiconductor]
Datasheet:
Part Number:
Description:
Dual TRI-STATE Differential Line Driver
Manufacturer:
NSC [National Semiconductor]
Datasheet: