參數(shù)資料
型號(hào): XRT75R12
廠商: Exar Corporation
英文描述: TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
中文描述: 第十二章通道E3/DS3/STS-1線路接口單元與抖動(dòng)衰減器
文件頁(yè)數(shù): 48/89頁(yè)
文件大?。?/td> 457K
代理商: XRT75R12
XRT75R12
REV. P1.0.2
PRELIMINARY
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
45
7.0
MICROPROCESSOR INTERFACE BLOCK
The Microprocessor Interface section supports communication between the local microprocessor (μP) and the
LIU. The XRT75R12 supports a parallel interface asynchronously or synchronously timed to the LIU. The mi-
croprocessor interface is selected by the state of the Pmode input pin. Selecting the microprocessor interface
mode is shown in Table 12.
The local μP configures the LIU by writing data into specific addressable, on-chip Read/Write registers. The
μP provides the signals which are required for a general purpose microprocessor to read or write data into
these registers. The μP also supports polled and interrupt driven environments. A simplified block diagram of
the microprocessor is shown in Figure 34.
T
ABLE
12: S
ELECTING
THE
M
ICROPROCESSOR
I
NTERFACE
M
ODE
P
MODE
M
ICROPROCESSOR
M
ODE
"Low"
Asynchronous Mode
"High"
Synchronous Mode
F
IGURE
34. S
IMPLIFIED
B
LOCK
D
IAGRAM
OF
THE
M
ICROPROCESSOR
I
NTERFACE
B
LOCK
Microprocessor
Interface
WR
RD
Pmode
RDY
INT
RESET
PCLK
CS
Addr[7:0]
D[7:0]
相關(guān)PDF資料
PDF描述
XRT75R12IB TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
XRT75VL00 E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
XRT75VL00IV E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
XRT79L71 1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
XRT79L71IB 1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT75R12_07 制造商:EXAR 制造商全稱:EXAR 功能描述:TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER
XRT75R12_0710 制造商:EXAR 制造商全稱:EXAR 功能描述:TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER
XRT75R12D 制造商:EXAR 制造商全稱:EXAR 功能描述:TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET
XRT75R12D_06 制造商:EXAR 制造商全稱:EXAR 功能描述:TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET
XRT75R12D_07 制造商:EXAR 制造商全稱:EXAR 功能描述:TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET