參數(shù)資料
型號(hào): MT90500
廠商: Mitel Networks Corporation
英文描述: Multi-Channel ATM AAL1 SAR
中文描述: 多通道自動(dòng)柜員機(jī)AAL1特區(qū)
文件頁數(shù): 133/159頁
文件大小: 514K
代理商: MT90500
MT90500
133
6.2.5.2
Secondary UTOPIA Interface
Table 94 - Secondary UTOPIA Parameters Timing
Characteristic
Sym
Min
Typ
Max
Units
Test Conditions
STXCLK Period
t
STXP
40
ns
STXCLK = 25 MHz
STXCLK Pulse Width (HIGH / LOW)
t
STXH/L
16
20
24
ns
Input Setup Time
- (STXDATA[7:0]
VALID; STXSOC and STXEN asserted)
to STXCLK rising
t
STXIS
10
ns
Input Hold Time
- STXCLK rising to
(STXDATA[7:0]
STXSOC and STXEN de-asserted)
INVALID
and
t
STXIH
1
ns
Output Delay
- STXCLK rising to
STXCLAV asserted
t
STXD
20
ns
C
L
= 50 pF
Output Hold Time
- STXCLK rising to
STXCLAV de-asserted
t
STXH
1
C
L
= 50 pF
NOTE:
The
MT90500
requires at least one idle cycle between cells driven into the Secondary UTOPIA interface.
V
TT
STXSOC
STXCLK
t
STXH
t
STXL
t
STXP
Figure 59 - Secondary UTOPIA Interface
V
TT
STXEN
STXDATA[7:0]
X
H1
H2
H3
X
P45
P46
at least 4 cycles before the next cell
P47
P48
V
TT
V
TT
V
TT
STXCLAV
t
STXD
t
STXIS
t
STXIH
H1
t
STXIH
t
STXIH
NOTE: STXEN must be de-asserted for at least one cycle between cells, as shown here.
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