dp83261 National Semiconductor Corporation, dp83261 Datasheet - Page 43

• Manufacturer Part Number: dp83261
• Description: Bmac Device Fddi Media Access Controller
• Manufacturer: National Semiconductor Corporation

Bit
D0
D1
D2
D3
D4
D5
D6
D7
6 0 Control Information
Counter Increment Mask Register (CIMR)
The Counter Increment Mask Register (CIMR) is used to mask bits from the Counter Increment Latch Register (CILR) If a bit in
Register CIMR is set to One the corresponding bit in Register CILR will be applied to the Interrupt Condition Register which can
then be used to generate an interrupt
All bits in this register are set to Zero upon reset
ACCESS RULES
REGISTER BITS
RES
D7
Address
FRRCV
FREI
FRLST
FRCOP
FRNCOP
FRTRX
TKRCVD
RES
Symbol
19h
TKRCVD
D6
Frame Received Counter Increment Mask This bit is used to mask CILR FRRCV
Error Isolated Counter Increment Mask This bit is used to mask CILR FREI
Lost Frame Counter Increment Mask This bit is used to mask CILR FRLST
Frame Copied Counter Increment Mask This bit is used to mask CILR FRCOP
Frame Not Copied Counter Increment Mask This bit is used to mask CILR FRNCOP
Frame Transmitted Counter Increment Mask This bit is used to mask CILR FRTRX
Token Received Counter Increment Mask This bit is used to mask CILR TKRCVD
Reserved
FRTRX
D5
Always
Read
FRNCOP
D4
(Continued)
FRCOP
Always
Write
D3
FRLST
D2
43
FREI
D1
Description
FRRCV
D0