Rainbow Electronics DS21458 User Manual
Page 79
DS21455/DS21458 Quad T1/E1/J1 Transceivers
79 of 270
Register Name:
IOCR2
Register Description:
I/O Configuration Register 2
Register Address:
02h
Bit
# 7 6 5 4 3 2 1 0
Name
RCLKINV TCLKINV RSYNCINV
TSYNCINV
TSSYNCINV H100EN TSCLKM RSCLKM
Default
0 0 0 0 0 0 0 0
Bit 0/RSYSCLK Mode Select (RSCLKM).
0 = if RSYSCLK is 1.544MHz
1 = if RSYSCLK is 2.048MHz or IBO enabled (See the Interleaved PCM Bus Operation section.)
Bit 1/TSYSCLK Mode Select (TSCLKM).
0 = if TSYSCLK is 1.544MHz
1 = if TSYSCLK is 2.048/4.096/8.192MHz or IBO enabled (See the Interleaved PCM Bus Operation section.)
Bit 2/H.100 SYNC Mode (H100EN).
0 = normal operation
1 = SYNC shift
Bit 3/TSSYNC Invert (TSSYNCINV).
0 = no inversion
1 = invert
Bit 4/TSYNC Invert (TSYNCINV).
0 = no inversion
1 = invert
Bit 5/RSYNC Invert (RSYNCINV).
0 = no inversion
1 = invert
Bit 6/TCLK Invert (TCLKINV).
0 = no inversion
1 = invert
Bit 7/RCLK Invert (RCLKINV).
0 = no inversion
1 = invert