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參數(shù)資料
| 型號： | MB86967PFV |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP100 |
| 封裝： | PLASTIC, LQFP-100 |
| 文件頁數(shù)： | 24/129頁 |
| 文件大?。?/td> | 1519K |
| 代理商： | MB86967PFV |
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12
MB86967
Buffer memory interface pins in PC card mode, ISA bus mode, and general-purpose bus mode
Other pins in PC card mode, ISA bus mode, and general-purpose bus mode
Pin no.
Symbol
Pin name
I/O
Function
34 to 41
BD0 to BD7
BUFFER MEMORY
DATA BUS
B
These pins are used as data buses for data
exchange between the SRAM buffer memory and the
MB86967.
42 to 45,
47 to 50,
53 to 56,
58 to 60
BA0 to BA14
BUFFER MEMORY
ADDRESS BUS
O
These pins permit addressing of external SRAM
buffer memory expandable to 32 Kbytes.
33
BOE
BUFFER OUTPUT
ENABLE
O
This pin is used for output of Active-Low signals and
for enabling buffer memory at a read operation.
32
BWE
BUFFER WRITE
ENABLE
O
This pin is used for output of Active-Low signals and
for enabling buffer memory at a write operation.
30
BCS
BUFFER RAM CHIP
SELECT
O
This pin is used for output of Active-Low signals and
RAM chip select signals.
Pin no.
Symbol
Pin name
I/O
Function
52
MODE/LEDL
(PC card mode)
MODE SELECT/
LINK LED
IU/OD This pin serves as a mode select pin or a pin for
driving the LED indicating the status of the link
test according to the mode used. It is pulled-up
internally.
LEDL
(ISA bus mode)
OD
MODE
(General-purpose
bus mode)
IU
73
GNDM
(PC card mode)
MODE SELECT/
RECEIVE LED
G
This pin serves as a mode select pin or a pin for
driving the LED indicating the receive status
according to the mode used. It serves as a GND
pin in the PC card mode and general-purpose
bus mode.
MODE/LEDR
(ISA bus mode)
I/OD
GNDM
(General-purpose
bus mode)
G
61
62
CLKO
CLKI
CRYSTAL
OSCILLATOR
O
I
Connect an external 20-MHz crystal oscillator.
Input external clock pulses to CLKI. The wiring
between CLKO/CLKI and the crystal oscillator
should be as short as possible to prevent cross-
talk with other signal lines.
1,
26,
51,
94
VDD1 to VDD4
DIGITAL VDD
—
These pins are used for power supply to the
digital sections.
70
81
VDDA1
VDDA2
ANALOG VDD
—
These pins are used for power supply to the
encoder/decoder and 10BASE-T transceiver.
16,
24,
31,
46,
57,
86,
100
GND1 to GND7
DIGITAL
GROUND
—
These pins are used for grounding the digital
sections.
67
76
GNDA1
GNDA2
ANALOG
GROUND
—
These pins are used for grounding the encoder/
decoder and 10BASE-T transceiver.
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