DP83266VF National Semiconductor, DP83266VF Datasheet - Page 60

• Manufacturer Part Number: DP83266VF
• Description: IC MEDIA ACSS CTRL INTF 160PQFP
• Manufacturer: National Semiconductor

Specifications of DP83266VF

• Applications: *
• Voltage - Supply: 4.75 V ~ 5.25 V
• Package / Case: 160-BFQFP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Interface: -
• Other names: *DP83266VF

D6 –D4
D3 –D0
7 0 Control Information
Current Transmitter Status Register (CTS0)
The Current Transmitter Status Register (CTS0) records the status of the Transmitter state machine It is continuously updated
It remains stable when accessed
When in Diagnose Mode this register is frozen on an internal error until the internal error event is cleared by resetting the
TSMERR bit in the Internal Event Latch Register
Access Rules
Register Bits
Bit
D7
Address
ROP
00Eh
D7
ROP
TS(2 –0)
TTS(3–0)
Symbol
TS2
D6
Always
Read
Ring Operational Flag Indicates the current value of the local Ring Operational Flag
Transmit State TS(2–0) represent the current state of the Transmit state machine that implements the
ANSI X3T9 5 standard MAC Transmit Functions The encoding is shown below
TS2
Transmit Timing State TTS(3–0) represent the current state of the Transmit Timing state machine
The encoding is shown below
0
0
0
0
1
1
1
1
TTS3
TS1
D5
Data Ignored
0
0
0
0
0
0
0
0
1
9h–Fh
Write
TS1
0
0
1
1
0
0
1
1
TTS2
0
0
0
0
1
1
1
1
0
(Continued)
TS0
D4
TS0
0
1
0
1
0
1
0
1
TTS1
0
0
1
1
0
0
1
1
0
Transmit State
TTS3
Idle
Repeat
Data
Issue Token
Claim
Beacon
Reserved
Void
D3
TTS0
0
1
0
1
0
1
0
1
0
60
TTS2
D2
Idle
Transmit Preamble
Wait for Data (FIFO)
Transmit SD and FC Fields
Transmit DA
Transmit SA
Transmit INFO
Transmit FCS
Transmit ED and FS
Reserved
Transmit Timing State
Description
TTS1
D1
TTS0
D0