PEF2054 SIEMENS [Siemens Semiconductor Group], PEF2054 Datasheet - Page 260
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PEF2054
Manufacturer Part Number
PEF2054
Description
ICs for Communications
Manufacturer
SIEMENS [Siemens Semiconductor Group]
Datasheet
1.PEF2054.pdf
(269 pages)
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Figure 99
EPIC
Semiconductor Group
CFI Interface
CMD1
CSS = Clock Source Select,
CSM = CFI Synchronization Mode:
CSP0..1 = Clock Source Prescaler: 00 = 1/2, 01 = 1/1.5, 10 = 1/1
CMD0..1 = CFI Mode: 00 = 0, 01 = 1, 10 = 2, 11 = 3
CIS0..1 = CFI Alternative Input Section
CMD2
For IOM
FC0..2 = Framing Signal Output Control (CMD1:CSS = 0)
COC = Clock Output Control (CMD1:CSS = 0)
CXF = CFI Transmit on Falling Edge: 0 = send on rising edge, 1 = send on falling DCL edge
CRR = CFI Receive on Rising Edge: 0 = receive on falling edge, 1 = send on rising DCL
CBN8..9 = CFI Bit Number (see CBNR)
CBNR
CBN0..7 = CFI Bit Number per Frame – 1 (see CMD2:CBN8..9)
®
0 = PDC/PFS used for CFI,
1= DCL/FSC are inputs
1 = frame syncr. with rising edge,
0 = falling edge of DCL
if CSS = 0 ==> CMD1:CSM = PMOD:PSM !
Mode 0, 3: CIS0..1 = 0
Mode 1, 2: CIS0: 0 = IN0 = DU0, 1 = IN0 = DU2
Mode 1: CIS1: 0 = IN1 = DU1, 1 = IN1 = DU3
= 010 suitable for PBC, = 011 for IOM-2, = 110 IOM-2 and SLD
= 0 DCL = data rate,
= 1 DCL 2
edge
CSS
Initialization Register Summary (working sheet)
®
-2 CMD2 can be set to D0
CFI Mode Register 1
CFI Mode Register 2
CFI Bit Number Register
FC2..0
CSM
data rate (only mode 0 and 3 !)
CSP1..0
H
COC
CBN
260
RW, 2C
RW, 2E
RW, 30
CXF
CMD1..0
H
H
H
(8
(7
(6
CRR
H
H
H
+ RBS = 1), reset-val. = FF
+ RBS = 1), reset-val. = 00
+ RBS = 1), reset-val. = 00
CBN9..8
CIS1..0
PEB 2055
PEF 2055
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