pef20550 Infineon Technologies Corporation, pef20550 Datasheet - Page 160
pef20550
Manufacturer Part Number
pef20550
Description
Extended Line Card Interface Controller Elic
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PEF20550.pdf
(407 pages)
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4.6.32 Operation Mode Register (OMDR)
Access in demultiplexed P-interface mode:
Access in multiplexed P-interface mode:
Reset value: 00
OMS1..01 Operational Mode Selection; these bits determine the operation mode of the
Semiconductor Group
bit 7
OMS1
EPIC-1 is working in according to the following table:
OMS1..0 Function
00
10
11
01
OMS0
H
The CM-reset mode is used to reset all locations of the control
memory code and data fields with a single command within only
256 RCL-cycles. A typical application is resetting the CM with the
command MACR = 70
to all data field locations and the code ’0000’ (unassigned
channel) to all code field locations. A CM-reset should be made
after each hardware reset. In the CM-reset mode the EPIC-1
does not operate normally i.e. the CFI- and PCM-interfaces are
not operational.
The CM-initialization mode allows fast programming of the
control memory since each memory access takes a maximum of
only 2.5 RCL-cycles compared to the 9.5 RCL-cycles in the
normal mode. Accesses are performed on individual addresses
specified by MAAR. The initialization of control/signaling
channels in IOM- or SLD- applications can for example be
carried out in this mode. In the CM- initialization mode the
EPIC-1 does also not work normally.
In the normal operation mode the CFI- and PCM-interfaces are
operational. Memory accesses performed on single addresses
(specified by MAAR) take 9.5 RCL-cycles. An initialization of the
complete data memory tristate field takes 1035 RCL-cycles.
In test mode the EPIC-1 sustains normal operation. However
memory accesses are no longer performed on a specific address
defined by MAAR, but on all locations of the selected memory,
the contents of MAAR (including the U/D-bit!) being ignored. A
test mode access takes 2057 RCL-cycles.
PSB
PTL
160
H
which writes the contents of MADR (xx
COS
read/write
read/write
Detailed Register Description
MFPS
address: 0F
address: 1E
CSB
PEB 20550
PEF 20550
bit 0
H
H
/3E
RBS
01.96
H
H
)
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