NSK70721PE.C2 S E001 Intel, NSK70721PE.C2 S E001 Datasheet - Page 20

• Manufacturer Part Number: NSK70721PE.C2 S E001
• Manufacturer: Intel

Specifications of NSK70721PE.C2 S E001

• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (max): 5.25V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 28
• Lead Free Status / RoHS Status: Not Compliant

SK70725/SK70721 — Enhanced Multi-Rate DSL Data Pump Chip Set
3.1.3.1
20
Table 4.
Serial Control Port
The EDSP continually writes to the serial control port via SER_CTL signal stream. This serial
control stream consists of two 16-bit words as shown in
the IAFE at a rate of VCO_CLK/2. TXOFF, TXDIS, and TXTST control the transmit modes.
AGC0-AGC2 bits control the Receiver gain. PLL0-PLL7 bits control the VPLL output which is
used to control the frequency of VCO. Refer to the Test Specifications section for serial port
timing relationships and electrical parameters.
EDSP/IAFE Serial Control Port Word Bit Definitions
Bit
15
14
13
12
10
11
9
8
7
6
5
4
3
2
1
0
Word A (on SER_CTL)
TXOFF
TXTST
TXDIS
AGC2
AGC1
AGC0
FELB
INIT
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Word B (on SER_CTL)
PLL7
PLL6
PLL5
PLL4
PLL3
PLL2
PLL1
PLL0
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Table
4. The data flows from the EDSP to
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