pef20550 Infineon Technologies Corporation, pef20550 Datasheet - Page 45

• Manufacturer Part Number: pef20550
• Description: Extended Line Card Interface Controller Elic
• Manufacturer: Infineon Technologies Corporation

2.2.5
The ELIC provides fully IEEE Std. 1149.1 compatible boundary scan support consisting
of:
– a complete boundary scan
– a test access port controller (TAP)
– four dedicated pins (TCK, TMS, TDI, TDO)
– a 32-bit IDCODE-register
2.2.5.1 Boundary Scan
All ELIC-pins except power supply and ground are included in the boundary scan.
Depending on the pin functionality one, two or three boundary scan cells are provided.
Table 5
Boundary Scan Cell Types
Pin Type
Input
Output
I/O
When the TAP-controller is in the appropriate mode data is shifted into/out of the
boundary scan via the pins TDI/TDO using the 6.25-MHz clock on pin TCK.
The ELIC-pins are included in the following sequence in the boundary scan:
Table 6
Boundary Scan Sequence
Boundary
Scan Number
TDI
1
2
3
4
5
6
7
Semiconductor Group
Boundary Scan Support
Pin Number Pin Name
77
78
79
80
1
2
3
Number of Boundary
Scan Cells
1
2
3
P0.0,A0
P0.1,A1
P0.2,A2
P0.3,A3
P0.4,A4
P0.5,A5
P0.6,A6
45
Type
I
I
I
I
I
I
I
Usage
Input
Output, enable
Input, output, enable
Number of
Scan Cells
1
1
1
1
1
1
1
Functional Description
Default
Value
0
0
0
0
0
0
0
PEB 20550
PEF 20550
01.96