pef82902 Infineon Technologies Corporation, pef82902 Datasheet - Page 38

• Manufacturer Part Number: pef82902
• Description: 4b3t Second Generation Modular Isdn Nt Intelligent Extended
• Manufacturer: Infineon Technologies Corporation

2.2
Figure 9
•.
Figure 9
Reset Source Selection
The internal reset sources C/I code change and Watchdog timer can be output at the low
active reset pin RSTO. These reset sources can be selected with the RSS2,1 bits in the
MODE1 register according to
1)
Data Sheet
The ’OR’-gates shall illustrate in a symbolic way, that ’source A active’ or ’source B active’ is forwarded. The
real polarity of the different sources is not considered.
C/I0 Code Change
(Exchange Awake)
Watchdog
Software Reset
Register (SRES)
Reset
Functional
Block
Internal Reset
of all Registers
shows the organization of the reset generation of the T-SMINT
Reset Generation
Reset Generation of the T-SMINT
RES_HDLC
RES_CI
RES_S
RES_U
125µs
t = 125µs
t
250µs
Table
8.
´0´
´1´
RSS1
Reset MODE1
Register
24
´0,0´
´1,x´
RSS2,1
â
IX
´1´
1)
VDDDET
Deacti-
´0´
vation
Delay
1
Functional Description
1
´0,1´= open
RSS2,1
POR/UVD
´0´
VDDDET
´1´
â
RST Pin
RESETGEN.VSD
IX.
PEF 81902
2001-11-12
RSTO