RS8234EBGC Mindspeed Technologies, RS8234EBGC Datasheet - Page 333

• Manufacturer Part Number: RS8234EBGC
• Description: RS8234EBGC ATM XBR SAR
• Manufacturer: Mindspeed Technologies

RS8234
ATM ServiceSAR Plus with xBR Traffic Management
14.3.2 Reassembly Internal Memory Control Structures
28234-DSH-001-B
Table 14-7. Table of Values for Reassembly Internal Memory Initialization
RSM_SQ_BASE Table
Entry 0
(RSM Status Queue
Base Table Entry 0)
RSM_FBQ_BASE Table
Entry 0
(RSM Free Buffer
Queue Base Table Entry
0)
Global Time-out Table
Table
BASE_PNTR
LOCAL
SIZE
WRITE
READ_UD
Rsvd
READ_UD_PNTR
BD_LOCAL
BFR_LOCAL
EMPT
UPDATE
READ
FORWARD
LENGTH
Rsvd
TERM_TOCNT0
TERM_TOCNT1
TERM_TOCNT2
TERM_TOCNT3
TERM_TOCNT4
TERM_TOCNT5
TERM_TOCNT6
TERM_TOCNT7
TO_VCC_INDEX
Rsvd
Before reassembly is enabled, the host must allocate and initialize all of the
reassembly internal memory control structures.
for each field.
Field
Mindspeed Technologies
Initialized Value
0x1800
0xFFFF
0x200
0x400
0x400
0x400
0x400
0x400
0x400
0x400
0x20
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0
0
0
0
Status queue 0 resides in host memory.
Size of status queue 0 is 64 entries.
Must be initialized to zero.
Must be initialized to zero.
Must be initialized to zero.
Buffer descriptors and READ_UD located in host
memory.
Buffers located in host memory.
Must be initialized to zero.
Must be initialized to zero.
Must be initialized to zero.
32 free buffers initially put on free buffer queue.
bytes.
Must be initialized to zero.
Provides a 133 ms time-out period.
Provides a 133 ms time-out period.
Provides a 133 ms time-out period.
Provides a 133 ms time-out period.
Provides a 133 ms time-out period.
Provides a 133 ms time-out period.
Provides a 133 ms time-out period.
Must be initialized to zero.
Must be initialized to zero.
Base address of RSM status queue 0 is 0x6000.
Location of READ_UD is at 0x0.
Buffer lengths in free buffer queue 0 are 200
Provides an 8.5 sec time-out period.
™
14.0 SAR Initialization - Example Tables
Table 14-7
14.3 Reassembly Initialization
Notes
lists the initial value(s)
14-11