DS21FT42 Maxim Integrated Products, DS21FT42 Datasheet - Page 96

• Manufacturer Part Number: DS21FT42
• Description: IC FRAMER T1 4X3 12CH 300-BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS21FT42

• Controller Type: T1 Framer
• Interface: Parallel/Serial
• Voltage - Supply: 2.97 V ~ 3.63 V
• Current - Supply: 225mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 300-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

RECEIVE SIDE 2.048 MHz BOUNDARY TIMING
(with elastic store enabled) Figure 23-5
RSYSCLK
RECEIVE SIDE INTERLEAVED BUS OPERATION BYTE MODE TIMING
Figure 23-6
SYSCLK
RSYNC
RMSYNC
RCHCLK
RCHBLK
RSYNC
RSER
RSER
RSYNC
RSYNC
RSIG
RSIG
RSER
RSIG
RSIG
RSER
1
1
2
2
3
Notes:
1. 4.096 MHz bus configuration.
2. 8.192 MHz bus configuration.
3. RSYNC is in the input mode (RCR2.3 = 1).
1
3
2
4
FR2 CH32 FR3 CH32 FR0 CH1
FR2 CH32 FR3 CH32 FR0 CH1
Notes:
1. RSER data in channels 1, 5, 9, 13, 17, 21, 25, and 29 are forced to one
2. RSYNC is in the output mode (RCR2.3 = 0)
3. RSYNC is in the input mode (RCR2.3 = 1)
4. RCHBLK is forced to one in the same channels as RSER (see Note 1)
5. The F-Bit position is passed through the receive side elastic store and occupies the MSB position of
FRAMER 3, CHANNEL 32
FRAMER 3, CHANNEL 32
channel 1.
FR1 CH32
FR1 CH32
A
CHANNEL 31
CHANNEL 31
B
A
C/A
B
LSB
D/B
C/A
FR0 CH1
FR0 CH1
MSB
D/B
FR1 CH1
FR1 CH1
LSB MSB
FRAMER 0, CHANNEL 1
FRAMER 0, CHANNEL 1
FR2 CH1
FR2 CH1
BIT DETAIL
FR1 CH1
FR1 CH1
CHANNEL 32
CHANNEL 32
A
FR3 CH1
FR3 CH1
B
A
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C/D
B
FR0 CH2
FR0 CH2
LSB
D/B
C/A
FR0 CH2
FR0 CH2
MSB
D/B
LSB
FR1 CH2
FR1 CH2
FRAMER 1, CHANNEL 1
F 5
FRAMER 1, CHANNEL 1
CHANNEL 1
FR2 CH2
FR2 CH2
CHANNEL 1
FR1 CH2
FR1 CH2
A
FR3 CH2
FR3 CH2
B
C/D
LSB
D/B