pef20550 Infineon Technologies Corporation, pef20550 Datasheet - Page 312
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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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Figure 105
Flow Diagram “Transmit Command”
Transmit Continuous Command
The transmit continuous command can be used in IOM-2 applications only (active
handshake protocol) to send monitor messages longer than 16 bytes to a single
subscriber circuit.
When this command is given, the ELIC transmits the contents of the MFFIFO as with the
normal transmit command but does not conclude the transfer by setting MX inactive
when the MFFIFO is empty. Instead, the P is interrupted (ISTA_E:MFFI) and requested
to write a new block of data into the MFFIFO. This block may then again be transmitted
using the transmit continuous command or, if it is the last block of the long message, it
may be transmitted using the normal transmit command (CMDR_E:MFT1, MFT0 = 01).
If an answer is expected from the subscriber circuit, the last block may also be
terminated using the transmit + receive command (CMDR_E:MFT1, MFT0 = 10). Each
message block may be of arbitrary length (1 to 16 bytes).
Semiconductor Group
P µ
W : CMDR = 01
R : STAR = 05
W : MFFIFO = Data
R : STAR = 04
W : MFSAR = Address
W : CMDR = 04
R : STAR = 12
R : STAR = 13
R : ISTA = 20
R : STAR = 05
MFFR
MFAE, MFFE
1
2
N
MFTC1, 0 = 00
MFT1, 0 = 01
MFTO, MFRW, MFFE
MFFI Interrupt
312
EPIC
MFFIFO Reset
MFFIFO Empty
Write Access Enabled
MFFIFO not Empty
Write Access Enabled
MFFIFO not Empty
Access Disabled
Transfer in Operation
MFFIFO Empty
Access Disabled
Transfer in Operation
MFFIFO Empty
Write Access Enabled
Transfer Completed
R
ITD08085
Application Hints
PEB 20550
PEF 20550
Da 1
Ack 1
Da 2
Ack 2
Da N
Ack N
MR = 0
MR = 1
01.96
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