DS21FT42 Maxim Integrated Products, DS21FT42 Datasheet - Page 94

• 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

23.
RECEIVE SIDE D4 TIMING Figure 23-1
FRAME#
RECEIVE SIDE ESF TIMING Figure 23-2
FRAME#
RFSYNC
RFSYNC
RSYNC /
RSYNC /
RSYNC
RSYNC
RSYNC 2
RSYNC
RLCLK
RLCLK
RLCLK
RLINK 4
RLINK
RLINK
1
1
2
3
3
4
5
7
Notes:
1. RSYNC in the frame mode (RCR2.4 = 0) and double-wide frame sync is not enabled (RCR2.5 = 0)
2. RSYNC in the frame mode (RCR2.4 = 0) and double-wide frame sync is enabled (RCR2.5 = 1)
3. RSYNC in the multiframe mode (RCR2.4 = 1)
4. RLINK data (Fs - bits) is updated one bit prior to even frames and held for two frames
5. RLINK and RLCLK are not synchronous with RSYNC when the receive side elastic store is enabled
6
Notes:
1. RSYNC in the frame mode (RCR2.4 = 0) and double-wide frame sync is not enabled (RCR2.5 = 0)
2. RSYNC in the frame mode (RCR2.4 = 0) and double-wide frame sync is enabled (RCR2.5 = 1)
3. RSYNC in the multiframe mode (RCR2.4 = 1)
4. ZBTSI mode disabled (RCR2.6 = 0)
5. RLINK data (FDL bits) is updated one bit time before odd frames and held for two frames
6. ZBTSI mode is enabled (RCR2.6 = 1)
7. RLINK data (Z bits) is updated one bit time before odd frames and held for four frames
8. RLINK and RLCLK are not synchronous with RSYNC when the receive side elastic store is enabled
TIMING DIAGRAMS
1
1
2
2
3
4
3
5
4
6
7
5
8
6
9
10 11
7
8
12 13
9
14
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15 16 17
11
12
18 19
1
2
20
21 22
3
4
23 24
5