DS31256 Maxim Integrated Products, DS31256 Datasheet - Page 13

• 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

3. SIGNAL DESCRIPTION
3.1 Overview/Signal List
This section describes the input and output signals on the DS31256. Signal names follow a convention
that is shown in the Signal Naming Convention table below.
type, description, and pin location.
Signal Naming Convention
Table 3-A. Signal Description
FIRST LETTER
W20
PIN
V19
U18
U19
G20
G19
G18
G17
D20
D19
C20
D18
C19
B20
C18
B19
A20
H20
K19
V20
U20
T17
F20
F19
E20
F18
E19
E18
E17
L20
T18
T19
J20
R
T
L
P
J
Receive Serial Port
Transmit Serial Port
Local Bus
JTAG Test Port
PCI Bus
LBGACK
SIGNAL CATEGORY
NAME
JTCLK
JTRST
LBHE
LCLK
JTDO
JTMS
LA11
LA12
LA14
LA15
LA16
LA17
LA18
LA19
LA10
LA13
JTDI
LA0
LA1
LA2
LA3
LA4
LA5
LA6
LA7
LA8
LA9
LCS
LD0
LD1
LD2
LD3
TYPE
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
I
I
I
I
I
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JTAG IEEE 1149.1 Test Serial Clock
JTAG IEEE 1149.1 Test Serial Data Input
JTAG IEEE 1149.1 Test Serial Data Output
JTAG IEEE 1149.1 Test Mode Select
JTAG IEEE 1149.1 Test Reset
Local Bus Address Bit 0, LSB
Local Bus Address Bit 1
Local Bus Address Bit 2
Local Bus Address Bit 3
Local Bus Address Bit 4
Local Bus Address Bit 5
Local Bus Address Bit 6
Local Bus Address Bit 7
Local Bus Address Bit 8
Local Bus Address Bit 9
Local Bus Address Bit 10
Local Bus Address Bit 11
Local Bus Address Bit 12
Local Bus Address Bit 13
Local Bus Address Bit 14
Local Bus Address Bit 15
Local Bus Address Bit 16
Local Bus Address Bit 17
Local Bus Address Bit 18
Local Bus Address Bit 19, MSB
Local Bus Grant Acknowledge
Local Bus Byte High Enable
Local Bus Clock
Local Bus Chip Select
Local Bus Data Bit 0, LSB
Local Bus Data Bit 1
Local Bus Data Bit 2
Local Bus Data Bit 3
SECTION
3.2
3.2
3.3
3.4
3.5
Table 3-A
FUNCTION
lists all the signals, their signal