CN8330EPD CONEXANT [Conexant Systems, Inc], CN8330EPD Datasheet - Page 22
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CN8330EPD
Manufacturer Part Number
CN8330EPD
Description
DS3/E3 Framer with 52 Mbps HDLC Controller
Manufacturer
CONEXANT [Conexant Systems, Inc]
Datasheet
1.CN8330EPD.pdf
(101 pages)
- Current page: 22 of 101
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1.0 Product Description
1.1 Pin Descriptions
Table 1-2. Hardware Signal Definitions (5 of 5)
1-12
NOTE(S):
(1)
(2)
Standalone operation is valid only in DS3 mode.
Parallel mode is enabled by setting the Parallel Data Enable bit [ParaEn;CR04.3] in the Feature Control Register [CR04; 0x04]
when MON/MIC* is low. When MON/MIC* is high, Parallel mode is entered by tying the ALE/PAREN pin high.
RDAT[6]/RXOVH
RDAT[7]/TXNRZ
VALFCS/TXOVH
RDAT[3]/IDLE
Pin Label
RDAT[4]/
RDAT[5]/
FRMERR
FRMCAR
LCVCAR
IDLE/
GND
VCO
V
NC
DD
Receive Data Byte 3/Idle
Code Detection
Receive Data Byte 4/Frame
Error Detection
Receive Data Byte 5/Line
Code Violation Carry
Receive Data Byte 6/Receive
Overhead Detection
Receive Data Byte 7/ Trans-
mit NRZ Out
Idle/Frame Carry
Valid FCS Received/Transmit
Overhead
Voltage-Controlled Oscillator
Output
Supply Voltage
Ground
Not Connected
Signal Name
Conexant
I/O
O
O
O
O
O
O
O
O
Part of the 8-bit data bus output from the PPDL
receiver when parallel mode is enabled. When
parallel mode is disabled, this pin is an active-high
monitor output indicating idle code detection.
Part of the 8-bit data bus output from the PPDL
receiver when parallel mode is enabled. When
parallel mode is disabled, this pin is an active-high
monitor output indicating frame error detection.
Part of the 8-bit data bus output from the PPDL
receiver when parallel mode is enabled. When
parallel mode is disabled, this pin is an active-high
ripple carry output from the LCV error counter.
Part of the 8-bit data bus output from the PPDL
receiver when parallel mode is enabled. When
parallel mode is disabled, this pin is an active-low
monitor output indicating the receive overhead bit
positions.
Part of the 8-bit data bus output from the PPDL
receiver when parallel mode is enabled. When
parallel mode is disabled, this pin is a monitor
output for the transmit NRZ data.
Set if an idle flag is received after a non-idle
sequence, when parallel mode is enabled. When
parallel mode is disabled, this pin is an active-high
ripple carry output from the frame error counter.
Active high if a valid FCS was received, when parallel
mode is enabled. When parallel mode is disabled,
this pin is an active-low transmit overhead bit
position indicator.
Used as the phase control for the clock recovery
circuit that generates the dejittered clock, RXCKI.
Valid only when FIFEN is high. FIFEN enables the
internal FIFO when tied high.
DS3/E3 Framer with 52 Mbps HDLC Controller
Four pins are provided for power.
Five pins are provided for ground.
These pins are not connected internally.
Definition
CN8330
100441E
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