參數(shù)資料
型號： T9000
英文描述： ISDN Network Termination Node (NTN) Device
中文描述： ISDN網(wǎng)絡(luò)終端節(jié)點（新界北）設(shè)備
文件頁數(shù)： 13/126頁
文件大?。?/td> 2127K
代理商： T9000
Lucent Technologies Inc.
13
Preliminary Data Sheet
November 2000
ISDN Network Termination Node (NTN) Device
T9000
4 Pin Information
(continued)
Table 6. Comparators (6)
* I = input.
Table 7. JTAG Pins (4)
* I = input, O = output, I
U
= input with an internal 100 k
pull-up.
Pin Name
INP0
INN0
INP1
INN1
INP2
INN2
Pin #
46
45
48
47
50
49
Type*
I
I
I
I
I
I
Pin Description
Input Positive, Comparator 0.
Connect to 5 V via 1 k
.
Input Negative, Comparator 0.
Connect to GND via 1 k
.
Input Positive, Comparator 1.
Connect to 5 V via 1 k
.
Input Negative, Comparator 1.
Connect to GND via 1 k
.
Input Positive, Comparator 2.
Connect to 5 V via 1 k
.
Input Negative, Comparator 2.
Connect to GND via 1 k
.
Pin Name
JTCK
(C1536)
Pin #
41
Type*
I
U
(O)
Pin Description
JTAG TAP Clock.
It is recommended that this pin be externally pulled to V
DD
during normal operation. Internal 100 k
pull-up.
15.36 MHz System Clock
. When the TEST pin is asserted, this pin assumes
the alternate function C1536. This output is a buffered version of the internal
15.36 MHz system clock that is used by the NTN device.
JTAG TAP Mode Select.
This pin is externally pulled to V
DD
through approxi-
mately 20 k
. Internal 100 k
pull-up.
JTMS
(TCI)
42
I
U
(O)
Test Control In
. When the TEST pin is asserted, this pin assumes the alternate
function TCI. This pin is used for factory testing.
Note:
When in test mode, TCI
must not be pulled low by the user when not being
actively driven.
JTAG Serial Data Input.
This pin is internally pulled to V
DD
through approxi-
mately 20 k
. Internal 100 k
pull-up.
JTDI
(TDI)
40
I
U
Test Data In.
When the TEST pin is asserted, the GPIO1.7 pin assumes the
alternate function TDI. This pin is used for factory testing.
JTAG Serial Data Output.
JTDO
(TDO)
35
O
Test Data Out
. When the TEST pin is asserted, this pin assumes the alternate
function TDO. This pin is used for factory testing.
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