PEB 2091
PEF 2091
Functional Description
data (DU) on pin DIN. The IEC-Q is assigned to an individual channel by pin strapping
(see "Setting Operating Modes", page 50).
Note 10: This assigned channel is called the ’active channel’ of the IEC-Q. All other
channels, if available, are called the ’passive channels’ of the IEC-Q.
The IOM®-2 signals are:
DIN, DOUT
256 to 2048 kbit/s
512 to 4096 kHz, input
8 kHz, input
DCL
FSC
I
125 µs
FSC
DCL
DU
IOM R CH0
IOM R CH0
CH1
CH1
CH2
CH2
CH3
CH3
CH4
CH4
CH5
CH5
CH6
CH6
CH7
CH7
CH0
CH0
DD
M M
R X
B1
B2
MONITOR
D
C/I
ITD04319
Figure 25
Multiplexed Frame Structure of the IOM®-2 Interface
3.6.1.2 Plain Timing Mode
Note 11: This timing applies to the NT, NT-Auto Activation, COT-512, LT-RP and
NT-RP modes.
Note 12: Note also that the multiplexed mode timing described in 3.6.1.1 will reduce to
this timing if the bit rate 256 kbit/s is chosen. In this mode there is therefore
only one active IOM®-2 channel. No passive IOM®-2 channels are available.
In this timing mode the IEC-Q provides a data clock DCL with a frequency of 512 kHz.
As a consequence the IOM®-2 interface provides only one channel with a nominal data
rate of 256 kbit/s.
Semiconductor Group
72
Data Sheet 01.99
INFINEON [ Infineon ]
