DP83907VF National Semiconductor, DP83907VF Datasheet - Page 6

• Manufacturer Part Number: DP83907VF
• Description: IC CONTROLLR AT/LANII TP 160PQFP
• Manufacturer: National Semiconductor

Specifications of DP83907VF

• Controller Type: Network Interface Controller (NIC)
• Interface: Twisted Pair
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 150mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 160-MQFP, 160-PQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *DP83907VF

EXTERNAL MEMORY SUPPORT
Pin No
87 –94
77 –82
85 86
60 –67
68 69
71 –73
76
74
2 0 Pin Description
Note Driver Types are I
AUI
e
Attachment Unit Interface TPI
MSD0 –7 or
CA0 –7 or
DO DI SK
MSD8 –15 or
CB0 –7
MSA1 –8 or
CC0–7
MSA9 –13 or
DWID
EECONFIG
and SIG 5 –7
MSRD
MSWR
Pin Name
e
Input O
I O– I–O
I O –I
Type
MOS
MOS
MOS
MOS
MOS
MOS
O–I
O–I
O
O
e
e
(Continued)
Twisted Pair Interface LED
Output I O
MEMORY SUPPORT DATA BUS CONFIGURATION REGISTER A INPUT EEPROM
SIGNALS
MSD0–7 When RESET is inactive these pins are used to access external memory and boot
PROM
CA0–7 When RESET is active Configuration Register A is loaded with the data value on
these pins If the user puts an external pull-up on any of these pins then the corresponding
register bit is set to a 1 If the pin is left unconnected then the register bit is 0
DO DI SK When RESET goes from an active to an inactive level DP83907 will read the
contents of a serial EEPROM using these signals and load the contents into internal
registers These internal registers are mapped into the space taken up by the PROM in the
NE2000 Architecture After the EEPROM read operation has completed these pins will revert
to MSD0–2 (D0
MEMORY SUPPORT DATA BUS CONFIGURATION REGISTER B INPUT
MSD8–15 When RESET is inactive these pins are used to access external memory
CB0–7 When RESET is active Configuration Register B is loaded with the data value on
these pins If the user puts an external pull-up on any of these pins then the corresponding
register bit is set to a 1 If the pin is left unconnected then the register bit is 0
MEMORY SUPPORT ADDRESS BUS CONFIGURATION REGISTER C INPUT
MSA1–8 When RESET is inactive these pins drive the memory support address bus
CC0–7 When RESET is active Configuration Register C is loaded with the data value on
these pins If the user puts an external pull-up on any of these pins then the corresponding
register bit is set to a 1 If the pin is left unconnected then the register bit is 0
MEMORY SUPPORT ADDRESS BUS DWID EECONFIG AND SIGNATURE REGISTER
MSA9–13 When RESET is inactive these pins drive the memory support address bus
DWID (MSA9) When RESET is active this input specifies whether the DP83907 is interfacing
to an 8-bit or 16-bit ISA bus If the user puts an external pull-up on this pin then the bus is
considered to be 16-bit If the pin is left unconnected then the bus is considered to be 8-bit
EECONFIG(MSA10) When RESET is active this input specifies whether the DP83907 loads
the configuration from an EEPROM or from the MSD0– 15 and MSA1 – 8 pins If the user puts
an external pull-up on this pin then configuration data is loaded from the EEPROM If the pin
is left unconnected then configuration data is loaded from the memory support bus
SIG 5–7(MSA11–13) When RESET is active the most significant 3 bits of the signature
register are loaded with the data value on these pins If the user puts an external pull-up on
any of these pins then the corresponding register bit is set to a 1 If the pin is left
unconnected then the register bit is 0
MEMORY SUPPORT BUS READ Strobes data from the external RAM into the DP83907 via
the memory support data bus
MEMORY SUPPORT BUS WRITE Strobes data from the DP83907 into the external RAM
via the memory support data bus
e
Bi-directional Output OCH
e
e
MSD0 DI
LED Drive MOS
6
e
e
MSD1 SK
Open Collector 3ST
e
CMOS Level Compatible XTAL
Description
e
MSD2)
e
TRI-STATE Output TTL
e
Crystal
e
TTL Compatible