PSF21150 INFINEON [Infineon Technologies AG], PSF21150 Datasheet - Page 44

• Manufacturer Part Number: PSF21150
• Description: IPAC-X ISDN PC ADAPTER CIRCUIT
• Manufacturer: INFINEON [Infineon Technologies AG]

3.2.4
Figure 12
.
Figure 12
Reset Source Selection
The internal reset sources C/I code change, EAW and Watchdog can be output at the
low active reset pin RSTO. The selection of these reset sources can be done with the
RSS2,1 bits in the MODE1 register according
The setting RSS2,1 = ’01’ is reserved for further use. In this case no reset is output at
RSTO. The internal reset sources sets the MODE1 register to its reset value.
Data Sheet
C/I Code Change
(Exchange Awake)
EAW
(Subscriber Awake)
Watchdog
Software Reset
Register (SRES)
Reset
Functional
Block
Internal Reset of all Registers
Reset MODE1 Register
shows the organization of the reset generation of the device.
D, C/I-channel (00
Transceiver (30
IOM-2 (40
MON-channel (5C
General Config (60
B-channels (70
Reset Generation
Reset Generation
125µs
125µs
125µs
125µs
H
-5B
H
H
t
t
t
t
)
H
-8F
-3F
250µs
250µs
250µs
250µs
H
H
H
-2F
H
-5F
H
-6F
)
)
H
H
H
)
)
)
1
'0'
'1'
RSS1
'1x'
'00'
RSS2,1
44
Table
Description of Functional Blocks
1
6.
' 01 '
(reserved)
'01'
RSS2,1
1
PSB 21150
PSF 21150
2000-07-21
Pin
RES
Pin
RSTO
21150_21