CY7C924ADX-AXC Cypress Semiconductor Corp, CY7C924ADX-AXC Datasheet - Page 20

• Manufacturer Part Number: CY7C924ADX-AXC
• Description: IC TXRX HOTLINK 100LQFP
• Manufacturer: Cypress Semiconductor Corp
• Series: HOTlink™r
• Type: Transceiverr

Specifications of CY7C924ADX-AXC

• Package / Case: 100-LQFP
• Protocol: Fibre Channel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Product: Framer
• Number Of Transceivers: 1
• Data Rate: 622 Mbps
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Supply Current (max): 250 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage (typ): 5V
• Screening Level: Commercial
• Pin Count: 100
• Mounting: Surface Mount
• Package Type: TQFP
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Ic Interface Type: Parallel, Serial
• Supply Voltage Range: 4.5V To 5.5V
• Operating Temperature Range: 0°C To +70°C
• Digital Ic Case Style: TQFP
• No. Of Pins: 100
• No. Of Receivers: 2
• Frequency Max: 50MHz
• Rohs Compliant: Yes
• Termination Type: SMD
• Filter Terminals: SMD
• Driver Case Style: TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Drivers/receivers: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 428-2918; CY7C924ADX-AXC

Table 5. Speed Select and Range Select Settings, all modes
External Control of Data Flow
The Transmit Control State Machine supports three different
types of external control:.
■
■
■
These control signal inputs are only interpreted when the
Transmit FIFO is enabled. They affect the transmission of data
by bringing external signals to the state machine without sending
the signals through the Transmit FIFO.
TXSTOP* stops transmission of the next packet or cell of data in
the Transmit FIFO. When asserted (LOW) the Transmit Control
State Machine continues to read and process characters in the
Transmit FIFO until a location is read with the TXSOC bit set.
Once a TXSOC is detected, the state machine sends out C5.0
fill characters until TXSTOP* is deasserted (HIGH) for one or
more character times. When TXSTOP* is sampled deasserted it
allows the next character with TXSOC set to be read from the
Transmit FIFO and passed to the Encoder.
Document #: 38-02008 Rev. *G
TXSTOP*
TXHALT*
TXINT
FIFOBYP*
HIGH
LOW
BYTE8/10*
HIGH
HIGH
LOW
LOW
ENCBYP*
HIGH
HIGH
LOW
LOW
X
X
SPDSEL
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
LOW
LOW
LOW
LOW
LOW
LOW
RANGESEL
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
When TXSTOP* controls the flow of data, it is asserted (LOW)
most of the time. To allow a cell or frame to pass, it only needs
to be deasserted (HIGH) for one TXCLK cycle (assuming the
transmit controller is at a cell boundary). Once the first character
of the cell is transmitted the remainder of that cell is also
processed. This allows the host system to control the trans-
mission of data across the interface on a cell-by-cell or
packet-by-packet basis.
TXHALT* (TXDATA[9]) is an immediate form of TXSTOP*.
Instead of continuing to transmit data until a TXSOC is found,
asserting TXHALT* stops character processing at the next FIFO
character location. No additional data is read from the Transmit
FIFO until TXHALT* is deasserted (HIGH).
Note. If the Encoder is bypassed, TXDATA[9] is a data input and
not TXHALT*. Since in this mode the interface does not interpret
the TXSOC bit, the TXSTOP* signal assumes the same function-
ality as TXHALT*.
TXINT is used to send one of two interrupt characters from the
local transmitter to a remote receiver. While it also bypasses the
Transmit FIFO, it does not directly stop data transmission.
The Transmit Control State Machine responds to transitions on
the TXINT input. When TXINT transitions from 0→1, a C0.0
16.67 -33.33
16.67 -33.33
16.67 -33.33
16.67 -33.33
Frequency
8.33-16.67
8.33-16.67
8.33-16.67
8.33-16.67
REFCLK
(MHz)
10-20
20-40
10-20
20-40
10-20
20-40
10-20
20-40
10-20
20-40
10-20
20-40
10-20
20-40
10-20
20-40
Serial Data Rate
100-200
100-200
100-200
100-200
100-200
100-200
100-200
100-200
100-200
100-200
100-200
100-200
100-200
100-200
100-200
50-100
50-100
50-100
50-100
50-100
50-100
50-100
50-100
50-100
(MBd)
CY7C924ADX
Multiplier
Factor
Page 20 of 62
x2.5
x2.5
x12
x12
x10
x10
x10
x10
x5
x5
x5
x5
x6
x3
x6
x5
x5
x5
x5
x5
x5
x6
x6
x6