peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 232
peb20560
Manufacturer Part Number
peb20560
Description
Dsp Oriented Pbx Controller Doc
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PEB20560.pdf
(433 pages)
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Semiconductor Group
Set EPIC-1 to normal mode
Write OMDR = C0
Read ISTA = 20
Read ISTA_E = 08
Read STAR_E = 25
Reset tri-state field of Data Memory (DM)
Write MADR = 00
Write MACR = 68
Read STAR
3.1.6.6.2
Configure the SACCO-A for communication with downstream subscribers
Write MODE = A8
Write RAH1 = 00
Write RAH2 = 40
(Write CCR2 = 00
Write CCR1 = 87
Reset the SACCO-A’s FIFOs
Write CMDR = C1
Read ISTA = 02
Read ISTA_A = 10
3.1.6.6.3
Enable D-channel transmission to CFI-port 0, channel 0
(Write XDC = 00
Enable D-channel reception on CFI-port 0, channel 0
Write AMO = F9
Write DCE0 = 01
SACCO-A Initialization Example
D-Channel Arbiter Initialization Example
H
H
H
H
)
H
H
H
H
H
H
H
H
H
H
) reset value: T× DA pin disabled; standard data sampling;
H
H
H
set EPIC-1 to CM-normal mode; Interrupt line will go active
EPIC-1 interrupt
PFI-interrupt: PCM-synchronisity status has changed
ELIC is synchronized to PCM-interface; MFIFO ready
all bits of time-slot set to high impedance
write MADR to all locations of PCM-tri-state field
Wait for STAR:MAC = 0
set SACCO-B to transparent mode 1; switch receiver active
response SAPI1: Signaling data
response SAPI 2: Packet-switched data
RFS-interrupt disabled
power-up SACCO-A in point to point configuration and clock
mode 3 with double rate clock; inter frame timefill = all ‘1’s
reset CPU accessible and CPU inaccessible part of RFIFO,
and reset XFIFO; the interrupt line will go active
interrupt of SACCO-A
transmit pool ready
reset value: broadcasting disabled; transmit to channel 0
of port 0
start with maximum selection delay; suspend counter active;
control of D-channel to take place via C/I-bit; control
channel master enabled
enable CFI-port 0, channel 0 for data reception
3-26
Operational Description
PEB 20560
2003-08
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