DS21455 Maxim Integrated Products, DS21455 Datasheet - Page 93

• Manufacturer Part Number: DS21455
• Description: Network Controller & Processor ICs Quad E1-T1-J1 Single -Chip Transceiver (S
• Manufacturer: Maxim Integrated Products

Specifications of DS21455

• Product: Framer
• Number Of Transceivers: 4
• Data Rate: 64 Kbps
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 328 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Package / Case: BGA

17. SIGNALING OPERATION
There are two methods to access receive signaling data and provide transmit signaling data: processor-
based (i.e., software-based) or hardware-based. Processor-based refers to access through the transmit and
receive signaling registers, RS1–RS16 and TS1–TS16. Hardware-based refers to the TSIG and RSIG
pins. Both methods can be used simultaneously.
17.1 Receive Signaling
Figure 17-1. Simplified Diagram of Receive Signaling Path
RECEIVE SIGNALING
CHANGE OF STATE
T1/E1 DATA STREAM
EXTRACTION
REGISTERS
SIGNALING
INDICATION
REGISTERS
93 of 270
ONES
ALL
RE-INSERTION
SIGNALING
CONTROL
BUFFERS
PER-CHANNEL
CONTROL
RSER
RSYNC
RSIG