參數(shù)資料
型號: MB582A
廠商: Fujitsu Limited
英文描述: 155-Mbps ATM Transceiver(155Mbps 異步傳輸模式 收發(fā)器)
中文描述: 155 - Mbps的自動柜員機(jī)收發(fā)器(155Mbps異步傳輸模式收發(fā)器)
文件頁數(shù): 14/46頁
文件大?。?/td> 345K
代理商: MB582A
14
MB582A/583A
I
FUNCTIONS
(1) MB582A (Transmitter)
Reference clock function
High-frequency clock function
Reset function
Parallel clock function
Sleep mode function
Ready signal function
The device is not ready when;
PICLK is not input while PCLKSEL = “0” (selecting PICLK as parallel clock input)
RESET = “0” (reset operation)
PDOWN = “1” (sleep state)
The PLL circuit in the clock synthesizer is not locked (because of the REFCLK frequency not matched, external
resistor not connected, etc.)
PDOWN and RESET functions
X: 0 or 1
PCLKSEL
REFSEL
Reference clock terminal
Reference clock frequency
1 (OPEN)
1 (OPEN)
REFCLK
19.44 MHz
0
REFCLK
51.84 MHz
0
1 (OPEN)
PICLK
19.44 MHz
0
Prohibit
CLKSEL
Internal clock
RESET
Reset
1 (OPEN)
Clock synthesizer
1 (OPEN)
0
EXTCLK
0
Reset
PCLKSEL
Parallel data input clock
1 (OPEN)
Internal parallel clock (setup/hold time required between POCLK and D0 to D7)
0
PICLK (setup/hold time required between PICLK and D0 to D7)
PDOWN
Sleep mode
TX-READY
Device state
1
Sleep
H
Ready
0 (OPEN)
Wake-up
L
Not ready
PDOWN
RESET
Sleep mode
TX-READY
DO
DO
POCLK
1
X
Sleep
L
L
H
H
0
1
Not sleep
H
Normal
operation
Normal
operation
Normal
operation
0
L
L
H
L
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