PSB3186FV1.4 Infineon Technologies, PSB3186FV1.4 Datasheet - Page 178

• Manufacturer Part Number: PSB3186FV1.4
• Description: ISDN Interface ISDN
• Manufacturer: Infineon Technologies

Specifications of PSB3186FV1.4

• Control Type: HDLC
• Data Rate: 192 Kbps
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V
• Package / Case: MQFP-64
• Lead Free Status / Rohs Status: Details

4.4.5
Value after reset: 00
MODE1
WTC1, 2 ... Watchdog Timer Control 1, 2
After the watchdog timer mode has been selected (RSS = ’11’) the watchdog timer is
started. During every time period of 128 ms the microcontroller has to program the
WTC1 and WTC2 bit in the following sequence
to reset and restart the watchdog timer.
If WTC1/2 is not written fast enough in this way, the timer expires and a WOV-interrupt
(AUXI register) together with a reset pulse is generated.
CFS ... Configuration Select
This bit determines clock relations and recovery on S/T and IOM interfaces.
0: The IOM interface clock and frame signals are always active, "Power Down" state
included.
The states "Power Down" and "Power Up" are thus functionally identical except for the
indication: PD = 1111 and PU = 0111.
With the C/I command Timing (TIM) the microcontroller can enforce the "Power Up" state
and with C/I command Deactivation Indication (DI) the "Power Down" state is reached
again.
However, it is also possible to activate the S-interface directly with the C/I command
Activate Request (AR 8/10/L) without the TIM command.
1: The IOM interface clock and frame signals are normally inactive ("Power Down").
For activating the IOM-2 clocks the "Power Up" state can be induced by software
(IOM_CR.SPU) or by resetting CFS again.
After that the S-interface can be activated with the C/I command Activate Request (AR
8/10/L). The "Power Down" state can be reached again with the C/I command
Deactivation Indication (DI).
Note: After reset the IOM interface is always active. To reach the "Power Down" state
Data Sheet
the CFS-bit has to be set.
7
MODE1 - Mode1 Register
0
1.
2.
H
0
WTC1
1
0
0
WTC1 WTC2
WTC2
0
1
178
CFS
Detailed Register Description
RSS2 RSS1
0
RD/WR (62)
PSB 3186
PSF 3186
2000-08-23