DS32506DK Maxim Integrated Products, DS32506DK Datasheet - Page 22
DS32506DK
Manufacturer Part Number
DS32506DK
Description
Network Controller & Processor ICs 6-/8-/12-Port DS3/E3 ort DS3/E3/STS-1 LIU
Manufacturer
Maxim Integrated Products
Datasheet
1.DS32506N.pdf
(130 pages)
Specifications of DS32506DK
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Table 7-7. SPI Serial Interface Pin Descriptions
Table 7-8. CLAD Pin Descriptions
CLADBYP
REFCLK
GPIOAn
GPIOBn
NAME
NAME
CLKC
CLKD
CPHA
CPOL
CLKA
CLKB
SCLK
SDO
SDI
INT
CS
TYPE
TYPE
I/Opd
I/Opd
I/O
I/O
I/O
Oz
O
O
I
I
I
I
I
I
I
Chip Select (Active Low). This pin must be asserted to read or write internal registers.
See Section 8.9.
Serial Clock. SCLK is always driven by the SPI bus master. See Section 8.9.
Serial Data Input. The SPI bus master transmits data to the device on this pin.
See Section 8.9.
Serial Data Output. The device transmits data to the SPI bus master on this pin.
See Section 8.9.
Clock Phase. See Section 8.9.
0 = Data is latched on the leading edge of the SCLK pulse
1 = Data is latched on the trailing edge of the SCLK pulse
Clock Polarity. See Section 8.9.
0 = SCLK is normally low and pulses high during bus transactions
1 = SCLK is normally high and pulses low during bus transactions
Interrupt Output (Active Low, Open Drain).
See
General-Purpose I/O A. See
General-Purpose I/O B. See
Reference Clock. The signal on this pin is the input reference clock to the CLAD and
must be transmission quality (±20ppm, low jitter). In hardware mode, REFCLK must be
19.44MHz. In bus interface modes, REFCLK can be any of several frequencies. See
Section 8.7.1.
Clock A—DS3 44.736MHz. When the CLAD is bypassed, a transmission-quality DS3
clock (44.736MHz ±20ppm, low jitter) must be connected to this pin if any of the LIUs are
to operate in DS3 mode. When the CLAD is enabled this pin can be configured to output
the DS3 clock synthesized by PLL-A. See Section 8.7.1.
Clock B—E3 34.368MHz. When the CLAD is bypassed, a transmission-quality E3 clock
(34.368MHz ±20ppm, low jitter) must be connected to this pin if any of the LIUs are to
operate in E3 mode. When the CLAD is enabled, this pin can be configured to output the
E3 clock synthesized by PLL-B. See Section 8.7.1.
Clock C—STS-1 51.84MHz. When the CLAD is bypassed, a transmission-quality STS-1
clock (51.84MHz ±20ppm, low jitter) must be connected to this pin if any of the LIUs are
to operate in STS-1 mode. When the CLAD is enabled, this pin can be configured to
output the STS-1 clock synthesized by PLL-C. See Section 8.7.1.
Clock D—Telecom Bus 77.76MHz or 19.44MHz. When the CLAD is bypassed, this pin
is driven low. When the CLAD is enabled this pin can output a 77.76MHz or 19.44MHz
clock synthesized by PLL-D. See Section 8.7.1.
CLAD Bypass Control. This pin controls whether the CLAD is used or bypassed. When
a microprocessor interface is enabled
allow use of the GLOBAL.CR2:CLAD[6:0] field to control the CLAD. See Section 8.7.1.
0 = Synthesize the DS3, E3, and STS-1 clocks from the clock on the
1 = Source the DS3, E3, and STS-1 clocks from the CLKA,
INT
pin description in
Table
22 of 130
GPIOAn
GPIOBn
7-6.
pin description in
pin description in
(IFSEL
FUNCTION
FUNCTION
≠ 000), CLADBYP should be wired low to
Table
Table
CLKB
7-6.
7-6.
DS32506/DS32508/DS32512
and
REFCLK
CLKC
pins.
pin.
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