peb20525 Infineon Technologies Corporation, peb20525 Datasheet - Page 249

• Manufacturer Part Number: peb20525
• Description: 2 Channel Serial Optimized Communication Controller For Hdlc/ppp
• Manufacturer: Infineon Technologies Corporation

Table 32
Seq.
No.
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
An input pin (I) uses one boundary scan cell (data in), an output pin (O) uses two cells
(data out, enable) and an I/O-pin (I/O) uses three cells (data in, data out, enable). Note
that some functional output and input pins of SEROCCO-H are tested as I/O pins in
boundary scan, hence using three cells. The boundary scan unit of SEROCCO-H
contains a total of n = 158 scan cells.
The right column of
The desired test mode is selected by serially loading a 3-bit instruction code into the
instruction register via TDI (LSB first); see
Data Sheet
-> TDO
Pin
D14
D15
DRTA
DACKA
DRRA
DRRB
DRTB
DACKB
RTSB
RxDB
RxCLKB
TxDB
TxCLKB
CDB
ADS
Boundary Scan Sequence of SEROCCO-H
Table 32
I/O
I/O
I/O
I/O
I
I/O
I/O
I/O
I/O
O
I
I
O
I/O
I
O
gives the initialization values of the cells.
Number of
Boundary Scan Cells
2
3
3
1
3
3
3
3
1
1
1
2
3
1
2
249
Table
33.
Constant Value
In, Out, Enable
00
000
000
0
000
000
000
000
0
0
0
00
000
0
00
PEB 20525
PEF 20525
Test Modes
2000-09-14