PEF82912FV1.4 Infineon Technologies, PEF82912FV1.4 Datasheet - Page 56

• Manufacturer Part Number: PEF82912FV1.4
• Description: ISDN Interface ISDN
• Manufacturer: Infineon Technologies

Specifications of PEF82912FV1.4

• Mounting Style: SMD/SMT
• Package / Case: MQFP-64
• Lead Free Status / Rohs Status: Details

Figure 19
SDS is active during channel B2 on IOM -2, whereas in the second example during IC2
and MON1. The third example shows a strobe signal for 2B+D channels which is used
e.g. at an IDSL (144 kbit/s) transmission.
2.3.3
The IOM -2 MONITOR channel is utilized for information exchange between the Q-
SMINT I and other devices in the MONITOR channel.
The MONTIOR channel data can be controlled by the bits in the MONITOR control
register (MON_CR). For the transmission of the MONITOR data one of the 3 IOM -2
channels can be selected by setting the MONITOR channel selection bits (MCS) in the
MONITOR control register (MON_CR).
The DPS bit in the same register selects between an output on DU or DD respectively
and with EN_MON the MONITOR data can be enabled/disabled. The default value is
MONITOR channel 0 (MON0) enabled and transmission on DD.
The MONITOR channel of the Q-SMINT I can be used in the following applications
(refer also to
• As a master device the Q-SMINT I can program and control other devices (e.g. PSB
• As a slave device the Q-SMINT I is programmed and controlled from a master
The MONITOR channel operates according to the IOM -2 Reference Guide [13].
Note: In contrast to the INTC-Q, the Q-SMINT I does neither issue nor react on Monitor
2.3.3.1
The MONITOR channel operates on an asynchronous basis. While data transfers on the
bus take place synchronized to frame sync, the flow of data is controlled by a handshake
procedure using the MONITOR Channel Receive (MR) and MONITOR Channel
Transmit (MX) bits. Data is placed onto the MONITOR channel and the MX bit is
activated. This data will be transmitted once per 8-kHz frame until the transfer is
acknowledged via the MR bit.
Data Sheet
2161) attached to the IOM -2, which therefore, do not need a microcontroller
interface.
device on IOM -2 (e.g. UTAH). This is used in applications where no microcontroller
is connected directly to the Q-SMINT I.
commands (MON0,1,2,8). Instead, the Q-SMINT I operated in IOM -2 slave
mode must be programmed via new MONITOR channel concept (see
Chapter
procedure is available. Reporting of the Q-SMINT I is performed via interrupts.
shows three examples for the generation of a strobe signal. In example 1 the
IOM -2 Monitor Channel
Handshake Procedure
Figure 4
2.3.3.4), which provides full register access. The Monitor time out
and
Figure
5):
42
Functional Description
PEF 82912/82913
2001-03-30