參數(shù)資料
型號: XRT73L03A
廠商: Exar Corporation
英文描述: 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
中文描述: 三通道DS3/E3/STS-1線路接口單元
文件頁數(shù): 60/62頁
文件大小: 494K
代理商: XRT73L03A
XRT73L03A
3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
REV. 2.0.4
58
the desired eight bit data word to the SDI input pin via
the Microprocessor Serial Interface. The Micropro-
cessor Serial Interface latches the value on the SDI
input pin on the rising edge of SClk. Apply this word
(D0 through D7) serially, in ascending order with the
LSB first.
Simplified Interface Option
The design of the circuitry connecting to the Micro-
processor Serial Interface can be simplified by tying
both the SDO and SDI pins together and reading data
from and/or writing data to this combined signal. This
simplification is possible because only one of these
signals are active at any given time. The inactive sig-
nal is tri-stated.
N
OTES
:
1. A5 is always "0"
2. R/W = "1" for Read Operations
3. R/W = "0" for Write Operations
4.
Shaded box denotes a “don't care” value
F
IGURE
38. M
ICROPROCESSOR
S
ERIAL
I
NTERFACE
D
ATA
S
TRUCTURE
F
IGURE
39. T
IMING
D
IAGRAM
FOR
THE
M
ICROPROCESSOR
S
ERIAL
I
NTERFACE
D0
D1
D2
0
0
0
D4
D3
High Z
SDO
A0
D0
R/W
D1
A6
0
A4
A3
A2
A1
D7
D6
D5
D4
D3
D2
SDI
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SClk
CS
High Z
SDI
R/W
A1
A0
CS
SClk
CS
SClk
SDI
SDO
D0
D1
D2
D7
t22
t21
t23
t24
t25
t26
t27
t28
t29
t30
t31
t32
t33
Hi-Z
Hi-Z
相關(guān)PDF資料
PDF描述
XRT73L03AIV 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73L03B 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73L03BIV 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73L04A 4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73L04AIV 4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
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