DS31256 Maxim Integrated Products, DS31256 Datasheet - Page 73

• Manufacturer Part Number: DS31256
• Description: IC CTRLR HDLC 256-CHANNEL 256BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS31256

• Controller Type: HDLC Controller
• Interface: Serial
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 500mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Bits 8 to 11/Transmit Flag Generation Bits 0 to 3 (TFG0/TFG1/TFG2/TFG3). These four bits determine how
many flags and interfill bytes are sent between consecutive packets.
Bit 12/Transmit Zero Stuffing Disable (TZSD). When this bit is set low, the HDLC engine performs zero
stuffing on the outgoing data stream. When this bit is set high, the outgoing data stream is not zero stuffed. This
bit is ignored when the HDLC engine is configured in the transparent mode (TTRANS = 1).
TFG3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
TFG2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
TFG1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
TFG0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Share closing and opening flag
Closing flag/no interfill bytes/opening flag
Closing flag/1 interfill byte/opening flag
Closing flag/2 interfill bytes/opening flag
Closing flag/3 interfill bytes/opening flag
Closing flag/4 interfill bytes/opening flag
Closing flag/5 interfill bytes/opening flag
Closing flag/6 interfill bytes/opening flag
Closing flag/7 interfill bytes/opening flag
Closing flag/8 interfill bytes/opening flag
Closing flag/9 interfill bytes/opening flag
Closing flag/10 interfill bytes/opening flag
Closing flag/11 interfill bytes/opening flag
Closing flag/12 interfill bytes/opening flag
Closing flag/13 interfill bytes/opening flag
Closing flag/14 interfill bytes/opening flag
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