ds26519 Maxim Integrated Products, Inc., ds26519 Datasheet - Page 137

• Manufacturer Part Number: ds26519
• Description: Ds26519 16-port T1/e1/j1 Transceiver
• Manufacturer: Maxim Integrated Products, Inc.

Table 10-15. Backplane Reference Clock Select (1 to 8)
BPREFSEL3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
BPREFSEL2
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
BPREFSEL1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
137 of 310
BPREFSEL0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
BFREQSEL
DS26519 16-Port T1/E1/J1 Transceiver
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
2.048MHz RCLK1
1.544MHz RCLK1
2.048MHz RCLK2
1.544MHz RCLK2
2.048MHz RCLK3
1.544MHz RCLK3
2.048MHz RCLK4
1.544MHz RCLK4
2.048MHz RCLK5
1.544MHz RCLK5
2.048MHz RCLK6
1.544MHz RCLK6
2.048MHz RCLK7
1.544MHz RCLK7
2.048MHz RCLK8
1.544MHz RCLK8
2.048MHz derived from
MCLK. (REFCLKIO is an
output.)
1.544MHz derived from
MCLK. (REFCLKIO is an
output.)
2.048MHz external clock
input at REFCLKIO.
(REFCLKIO is an input.)
1.544MHz external clock
input at REFCLKIO.
(REFCLKIO is an input.)
REFERENCE CLOCK
SOURCE