txc-03456 TranSwitch Corporation, txc-03456 Datasheet - Page 53

• Manufacturer Part Number: txc-03456
• Description: Device Level Mapper
• Manufacturer: TranSwitch Corporation

Boundary Scan Chain
There are 124 scan cells in the L4M boundary scan chain. Bidirectional signals require two scan cells. Addi-
tional scan cells are used for direction control as needed. The following table shows the listed order of the scan
cells and their function.
Scan Cell No.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
2
3
4
5
6
7
8
9
Bidirectional
Bidirectional
Bidirectional
Bidirectional
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
I/O
Pin No.
104
105
107
108
109
110
111
113
114
115
116
117
119
120
121
122
123
125
126
127
128
129
131
132
133
134
135
137
GZBIDA
Symbol
TOCHC
GZADB
AC1J1
DC1J1
DPAR
EXC1
APAR
ACLK
ASPE
EXTC
DSPE
DCLK
TEST
TEST
ADD
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AC1
DC1
DD0
DD1
DD2
DD3
DATA SHEET
- 53 -
Should be set to 0.
Output enable for AD0...AD7
Output enable for AC1, ACLK, ASPE, and
AC1J1. 0=Output, 1=Input
Should be set to 0.
Comments
Ed. 1A, January 2000
TXC-03456
TXC-03456-MB
L4M