DP83932CVF25 National Semiconductor, DP83932CVF25 Datasheet - Page 25

• Manufacturer Part Number: DP83932CVF25
• Manufacturer: National Semiconductor

Specifications of DP83932CVF25

• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (max): 5.25V
• Mounting: Surface Mount
• Pin Count: 132
• Lead Free Status / RoHS Status: Not Compliant

COMMAND AND STATUS REGISTERS
TRANSMIT REGISTERS
RECEIVE REGISTERS
CAM REGISTERS
TALLY COUNTERS
4 0 SONIC Registers
4 2 STATUS CONTROL REGISTERS
This set of registers is used to convey status control infor-
mation to from the host system and to control the operation
of the SONIC These registers are used for loading com-
mands generated from the system indicating transmit and
receive status buffering data to from memory and provid-
3F (Note 3)
2C (Note 4)
2D (Note 4)
2E (Note 4)
01 (Note 3)
22 (Note 1)
23 (Note 1)
24 (Note 1)
25 (Note 2)
RA5 –RA0
00h
0D
0E
2B
02
03
04
05
06
07
13
14
15
16
17
18
21
26
27
R W
R W
R W
R W
R W
R W
R W
R W
R W
R W
R W
R W
R W
R W
R W
R W
R W
R W
R W
R
R
R
R W
R W
R W
R W
R W
R W
Access
(Continued)
Command
Data Configuration
Receive Control
Transmit Control
Interrupt Mask
Interrupt Status
Data Configuration 2
Upper Transmit Descriptor Address
Current Transmit Descriptor Address
Upper Receive Descriptor Address
Current Receive Descriptor Address
End of Buffer Word Count
Upper Receive Resource Address
Resource Start Address
Resource End Address
Resource Read Pointer
Resource Write Pointer
Receive Sequence Counter
CAM Entry Pointer
CAM Address Port 2
CAM Address Port1
CAM Address Port 0
CAM Enable
CAM Descriptor Pointer
CAM Descriptor Count
CRC Error Tally
FAE Tally
Missed Packet Tally
TABLE 4-1 User Registers
Register
25
ing interrupt control The registers are selected by asserting
chip select to the SONIC and providing the necessary ad-
dress on register address pins RA5– RA0 Tables 4-1 4-2
and 4-3 show the locations of all SONIC registers and
where information on the registers can be found in the data
sheet
Symbol
CR
DCR
RCR
TCR
IMR
ISR
DCR2
UTDA
CTDA
URDA
CRDA
EOBC
URRA
RSA
REA
RRP
RWP
RSC
CEP
CAP2
CAP1
CAP0
CE
CDP
CDC
CRCT
FAET
MPT
4 3 1
4 3 2
4 3 3
4 3 4
4 3 5
4 3 6
4 3 7
4 3 8 3 4 4 1
4 3 8 3 5 3
4 3 9 3 4 4 1
4 3 9 3 4 4 3
4 3 9 3 4 2
4 3 9 3 4 4 1
4 3 9 3 4 1
4 3 9 3 4 1
4 3 9 3 4 1
4 3 9 3 4 1
4 3 9 3 4 3 2
4 1 4 3 10
4 1 4 3 10
4 1 4 3 10
4 1 4 3 10
4 1 4 3 10
4 1 4 3 10
4 1 4 3 10
4 3 11
4 3 11
4 3 11
Description
(section)