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參數(shù)資料
| 型號(hào)： | MT9079 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Advanced Controller for E1(先進(jìn)的E1幀調(diào)節(jié)器和控制器) |
| 中文描述： | 高級(jí)控制器素E1（先進(jìn)的素E1幀調(diào)節(jié)器和控制器） |
| 文件頁數(shù)： | 38/60頁 |
| 文件大小： | 347K |
| 代理商： | MT9079 |
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MT9079
4-244
Applications
Microprocessor Interfaces
Figure 7 illustrates a circuit which connects the
MT9079 to a MC68HC11 microcontroller operating at
2.1 MHz. Address lines A
13
- A
15
are decoded and
latched with the AS signal to generate one of eight
possible Chip Selects (CS). A
8
- A
12
are used to
select the individual control and status registers of
the MT9079, and AD
0
- AD
7
are used for data
transfer only.
The receive and transmit data link signals can be
connected directly to the MC68HC11 serial port,
when it is operating is slave mode. With this circuit, it
is important to make the CPHA bit high in the
MC68HC11 Serial Peripheral Control Register so the
SS input can be tied low.
Figure 8 shows a circuit which interfaces the MT9079
to the 80C52 microcontroller. The 80C52 RD and WR
signals are used to generate a R/W signal for the
MT9079. RD and WR are also re-timed using the
XTAL2 output to produce a Data Strobe (DS) signal
that will meet t
RWS
. The remainder of this interface is
similar to the MC68HC11 interface.
A
13
-A
15
AS
IRQ
A
8
-A
12
D
0
-D
7
R/W
E
MISO
MOSI
SCK
SS
3
5
8
74HCT04
74HCT04
+5V
4.7k
CS
IRQ
A
0
-A
4
D
0
-D
7
R/W
DS
S/P
TxDL
RxDL
DLCLK
MT9079
MC68HC11
(CPHA = 1)
(CPOL = 0)
Figure 7 - MT9079 to MC68HC11 (2.1 MHz) Microcontroller Interface Circuit
RD
WR
XTAL2
A
13
-A
15
ALE
A
8
-A
12
AD0-AD7
INT0
INT1
P1.0
P1.1
3
74HCT04
74HCT08
+5V
10k
DPRQ
DS
A
0
-A
4
D
0
-D
7
S/P
MT9079
80C52
DPRQ
DPRQ
74HCT04
74HCT74
74HCT04
CLR
74HCT74
R/W
CS
74HCT04
5
8
IRQ
DLCLK
RxDL
TxDL
+5V
10k
Figure 8 - MT9079 to 80C52 Microcontroller Interface Circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT9079AC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS ST-BUS? FAMILY Advanced Controller for E1 |
| MT9079AE | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS ST-BUS? FAMILY Advanced Controller for E1 |
| MT9079AL | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS ST-BUS⑩ FAMILY Advanced Controller for E1 |
| MT9079AP | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS ST-BUS⑩ FAMILY Advanced Controller for E1 |
| MT9079APR | 制造商:Microsemi Corporation 功能描述:FRAMER E1 5V 44PLCC - Tape and Reel |
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