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參數(shù)資料
| 型號(hào)： | μPD98408 |
| 廠商： | NEC Corp. |
| 英文描述： | ATM Physical Interface(ATM 物理接口) |
| 中文描述： | ATM物理接口（自動(dòng)柜員機(jī)物理接口） |
| 文件頁數(shù)： | 14/32頁 |
| 文件大?。?/td> | 193K |
| 代理商： | ΜPD98408 |
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14
μ
PD98408
(3/3)
Pin Name
Pin No.
I/O
Active
Level
Function
IC/RDATA5
42
O
/
Two pin functions can be selected according to the level of the
PMDONLY pin.
When PMDONLY = 0 (IC):
No signal should be connected to this pin.
When PMDONLY = 1 (RDATA5):
Output pin for the data received from the PMD receiver
(Circuit 5).
IC/TDATA1
45
I
(with pull-
down
resistor)
/
Two pin functions can be selected according to the level of the
PMDONLY pin.
When PMDONLY = 0 (IC):
No signal should be connected to this pin.
When PMDONLY = 1 (TDATA1):
Input pin for transmit data for the PMD transmitter (Circuit 1).
IC/TDATA2
46
I
(with pull-
down
resistor)
/
Two pin functions can be selected according to the level of the
PMDONLY pin.
When PMDONLY = 0 (IC):
No signal should be connected to this pin.
When PMDONLY = 1 (TDATA2):
Input pin for transmit data for the PMD transmitter (Circuit 2).
IC/TDATA3
48
I
(with pull-
down
resistor)
/
Two pin functions can be selected according to the level of the
PMDONLY pin.
When PMDONLY = 0 (IC):
No signal should be connected to this pin.
When PMDONLY = 1 (TDATA3):
Input pin for transmit data for the PMD transmitter (Circuit 3).
IC/TDATA4
49
I
(with pull-
down
resistor)
/
Two pin functions can be selected according to the level of the
PMDONLY pin.
When PMDONLY = 0 (IC):
No signal should be connected to this pin.
When PMDONLY = 1 (TDATA4):
Input pin for transmit data for the PMD transmitter (Circuit 4).
SIN/TDATA5
50
I
(with pull-
down
resistor)
H/
Two pin functions can be selected according to the level of the
PMDONLY pin.
When PMDONLY = 0 (SIN):
X_8 command transmit timing signal input pin.
When PMDONLY = 1 (TDATA5):
Input pin for transmit data for the PMD transmitter (Circuit 5).
SOUT
54
O
H
X_8 command receive timing signal output pin.
PMDONLY
18
I
(with pull-
down
resistor)
Specifies the mode of the
μ
PD98408: whether it is operated as
PMD + TC or as PMD only.
0:
Operation as PMD + TC.
1:
Operation as PMD only.
TCLOCK
57
I
Transmit clock (32 MHz) input pin
RESET_B
55
I
L
Input pin for the reset signal for the entire
μ
PD98408.
IC
5, 6, 14,
15, 85,
144, 145
No signal should be connected to these pins.
CG
113
I
Should be connected to GND for normal use.
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