
IBM2520L8767
IBM Processor for ATM Resources
atmrm.chapt06.01
08/27/99
Overhead Frame Processor Architecture: Transmit Direction
Page 449 of 553
Overhead Frame Processor Architecture: Transmit Direction
OFP_Tx GPP Handler Address Mapping
Base Address = x’400 (Page 1 of 3)
Register Name
Description
Address Offset
Type Width
Initial Value
CntEn1
COUNT ENABLE register
X’2’
X 4
’0000’
PTRINC
Pointer increment event counter (1)
X’4/5’ *
N 8
’00000000’
no threshold
N 8
PTRDEC
Pointer decrement event counter (1)
X’6/7’ *
N 8
’00000000’
no threshold
N 8
ND_EVCNT
New data event counter, no threshold (1)
X’8/9’ *
N 8
’00000000’
JUSCNT
Justification error counter (1)
X’A/B’ *
N 8
’00000000’
with no threshold
N 8
JUSCNTTh11
Threshold register for counter JUSCNT
X’C’
X 8
’10000000’
RESET
Default RESET register
X’30’
R 2
’01’
CMD1
Njus, Pjus, NDF
X’31’
O 3
’000’
STAT1
Init, hug, mode(7-5)
X’33’
S 6
STAT2
Njus, Pjus, NDF
X’34’
S 3
MainIRQ
MAIN INTerrupt register
X’38’
I 3
M_MainIRQ
INTerrupt MASK register (for MainIRQ)
X’39’
X 3
’000’
CntrIRQ1
COUNTER INTerrupt register
X’3A’
I 5
M_CntrIRQ1
INTerrupt MASK register (for CntrIRQ1)
X’3B’
X 5
’00000’
IRQ3
USER INTerrupt register
X’3C’
I 6
M_IRQ3
INTerrupt MASK register (for IRQ3)
X’3D’
X 6
’000000’
CONF1
Configuration register #1 (general A)
X’48’
C 8
’00000011’
CONF2
Configuration register #2 (general B)
X’49’
C 3
’000’
CONF3
Configuration register #3
X’4A’
C 8
’11111110’
(fscr reload pattern)
N 8
CONF4
Configuration register #4 (errmask)
X’4B’
C 8
’00000000’
CONF5
Configuration register #5 (erraddress)
X’4C’
C 8
’00000000’
CONF6
Configuration register #6 (fscr control)
X’4D’
C 8
’00000001’
CONF7
Configuration register #7 (DCC control)
X’4E’
C 4
’0000’
CONF8
Configuration register #8 (ThrLoW)
X’4F’
C 6
’000011’
CONF9
Configuration register #9 (ThrNoW)
X’50’
C 6
’010001’
CONF10
Configuration register #10 (ThrHiW)
X’51’
C 6
’100000’
SOH-A11
First A1
X’100’
8
SOH-A12
Second1 A1
X’101’
8
SOH-A13
Third A1
X’102’
8
SOH-A21
First A2
X’103’
8
SOH-A22
Second A2
X’104’
8
SOH-A23
Third A2
X’105’
8
SOH-J0
J0
X’106’
8
Reserved for national use and not included in frame
scrambling
X’107-8’
8
SOH-B1
B1
X’109’
8