DS31256 Maxim Integrated Products, DS31256 Datasheet - Page 2

• Manufacturer Part Number: DS31256
• Description: IC CTRLR HDLC 256-CHANNEL 256BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS31256

• Controller Type: HDLC Controller
• Interface: Serial
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 500mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

1.
2.
3.
4.
5.
6.
7.
8.
9.
3.1
3.2
3.3
3.4
3.5
3.6
3.7
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
5.1
5.2
5.3
5.4
6.1
6.2
6.3
6.4
6.5
6.6
7.1
7.2
8.1
8.2
9.1
9.2
5.3.1
5.3.2
8.1.1
8.1.2
9.2.1
9.2.2
9.2.3
9.2.4
MAIN FEATURES............................................................................................................6
DETAILED DESCRIPTION ..............................................................................................7
SIGNAL DESCRIPTION ................................................................................................13
MEMORY MAP ..............................................................................................................26
GENERAL DEVICE CONFIGURATION AND STATUS/INTERRUPT...........................32
LAYER 1 ........................................................................................................................44
HDLC .............................................................................................................................67
FIFO ...............................................................................................................................74
DMA ...............................................................................................................................83
O
S
L
JTAG S
PCI B
PCI E
S
I
G
R
T
C
HDLC R
BERT R
R
T
FIFO R
PCI C
PCI C
M
M
S
T
G
P
L
R
BERT .......................................................................................................................................60
BERT R
G
HDLC R
G
FIFO R
I
R
NTRODUCTION
NTRODUCTION
OCAL
AYER
RANSMIT
RANSMIT
EST
ERIAL
UPPLY AND
TATUS AND
ORT
ECEIVE
HANNELIZED
ECEIVE
ECEIVE
ECEIVE
VERVIEW
ENERAL
ENERAL
ENERAL
ENERAL
ASTER
ASTER
General Description of Operation ....................................................................................................... 34
Status and Interrupt Register Description ........................................................................................... 37
Receive High Watermark .................................................................................................................... 76
Transmit Low Watermark .................................................................................................................... 76
Overview ............................................................................................................................................. 85
Packet Descriptors .............................................................................................................................. 90
Free Queue ......................................................................................................................................... 92
Done Queue........................................................................................................................................ 97
R
US
XTENSION
R
ONFIGURATION
ONFIGURATION
B
1 C
EGISTER
P
EGISTER
EGISTERS
EGISTER
IGNAL
US
EGISTERS
EGISTER
EGISTERS
EGISTER
R
C
ORT
S
P
DMA R
V.54 D
S
C
D
D
D
/S
P
DMA R
ESET AND
ONFIGURATION
ONFIGURATION
IGNAL
ORT
IDE
ONFIGURATION
ESCRIPTION
ESCRIPTION
ESCRIPTION AND
S
ORT
IGNAL
T
I
IGNAL
NTERRUPT
I
EST
P
NTERFACE
D
...........................................................................................................................85
..........................................................................................................................26
..........................................................................................................................83
R
ORT
ESCRIPTION
D
S
ETECTOR
D
R
EGISTERS
D
D
EGISTERS
D
D
(9
IGNALS
ESCRIPTION
EGISTERS
ESCRIPTION
EGISTERS
ESCRIPTIONS
S
ESCRIPTION
(5
(4
L
ESCRIPTION
ESCRIPTION
D
XX
IGNAL
IST
R
ID R
XX
XX
ESCRIPTION
R
R
EGISTERS
) .............................................................................................................30
EGISTERS FOR
EGISTERS FOR
)............................................................................................................29
)............................................................................................................29
.............................................................................................................13
.............................................................................................................44
.............................................................................................................67
............................................................................................................34
...........................................................................................................25
S
EGISTER
..........................................................................................................56
R
R
D
IGNAL
R
(7
(1
EGISTER
TABLE OF CONTENTS
EGISTER
ESCRIPTION
......................................................................................................22
(8
E
EGISTERS
(2
XX
XX
XAMPLE
...................................................................................................43
...................................................................................................76
XX
XX
..................................................................................................22
) ...............................................................................................29
.................................................................................................48
.................................................................................................61
.................................................................................................69
)...............................................................................................27
(3
) .............................................................................................30
D
).............................................................................................27
..............................................................................................19
D
XX
ESCRIPTION
ESCRIPTION
D
D
) .......................................................................................28
F
F
.......................................................................................74
ESCRIPTION
ESCRIPTION
(0
UNCTION
UNCTION
2 of 183
....................................................................................25
XX
) .............................................................................26
..........................................................................18
........................................................................32
0 (PIDSEL/A
1 (PIDSEL/B
....................................................................32
....................................................................51
XX
XX
).............................................31
).............................................31