Owner's manual
DS21455/DS21458 Quad T1/E1/J1 Transceivers
35 of 270
PIN NAME TYPE FUNCTION
J9 ESIBS1 I/O Extended System Information Bus 1
H5
INT
O
Interrupt for All Four Transceivers
K16 JTCLK I JTAG Clock
C10 JTDI I JTAG Data Input
K13 JTDO O JTAG Data Output
J15 JTMS I JTAG Test Mode Select
K14 JTRST I JTAG Reset
D9 TPD I Transmit Power-Down Enable
H4 MCLK1 I Master Clock for Transceiver 1 and Transceiver 3
J12 MCLK2 I Master Clock for Transceiver 2 and Transceiver 4
R8 MUX I Mux Bus Select
E9 Unused I Connect to VSS for Proper Operation
K9 N.C. — No Connection
P3 N.C. — No Connection
K3 RCHBLK1 O Receive Channel Block for Transceiver 1
G10 RCHBLK2 O Receive Channel Block for Transceiver 2
C7 RCHBLK3 O Receive Channel Block for Transceiver 3
R11 RCHBLK4 O Receive Channel Block for Transceiver 4
L2 RCHCLK1 O Receive Channel Clock for Transceiver 1
G11 RCHCLK2 O Receive Channel Clock for Transceiver 2
D7 RCHCLK3 O Receive Channel Clock for Transceiver 3
M9 RCHCLK4 O Receive Channel Clock for Transceiver 4
K8 RCLK1 O Receive Clock Output from the Framer on Transceiver 1
F10 RCLK2 O Receive Clock Output from the Framer on Transceiver 2
G5 RCLK3 O Receive Clock Output from the Framer on Transceiver 3
K12 RCLK4 O Receive Clock Output from the Framer on Transceiver 4
H9 Unused I Connect to VSS for Proper Operation
R1 RCLKO1 O Receive Clock Output from the LIU on Transceiver 1
C14 RCLKO2 O Receive Clock Output from the LIU on Transceiver 2
A2 RCLKO3 O Receive Clock Output from the LIU on Transceiver 3
P14 RCLKO4 O Receive Clock Output from the LIU on Transceiver 4
A10
RD (DS)
I Read Input (Data Strobe)
K4 RFSYNC1 O Receive Frame Sync (Before the Receive Elastic Store) for Transceiver 1
G14 RFSYNC2 O Receive Frame Sync (Before the Receive Elastic Store) for Transceiver 2
C6 RFSYNC3 O Receive Frame Sync (Before the Receive Elastic Store) for Transceiver 3
P11 RFSYNC4 O Receive Frame Sync (Before the Receive Elastic Store) for Transceiver 4
M2 RLCLK1 O Receive Link Clock for Transceiver 1
F15 RLCLK2 O Receive Link Clock for Transceiver 2
B6 RLCLK3 O Receive Link Clock for Transceiver 3
R12 RLCLK4 O Receive Link Clock for Transceiver 4
P2 RLINK1 O Receive Link Data for Transceiver 1
C15 RLINK2 O Receive Link Data for Transceiver 2
C3 RLINK3 O Receive Link Data for Transceiver 3
T15 RLINK4 O Receive Link Data for Transceiver 4
K5 RLOS/LOTC1 O Receive Loss of Sync/Loss of Transmit Clock for Transceiver 1
E15 RLOS/LOTC2 O Receive Loss of Sync/Loss of Transmit Clock for Transceiver 2
D6 RLOS/LOTC3 O Receive Loss of Sync/Loss of Transmit Clock for Transceiver 3
P12 RLOS/LOTC4 O Receive Loss of Sync/Loss of Transmit Clock for Transceiver 4
M3 RMSYNC1 O Receive Multiframe Sync for Transceiver 1
G13 RMSYNC2 O Receive Multiframe Sync for Transceiver 2
E6 RMSYNC3 O Receive Multiframe Sync for Transceiver 3
M10 RMSYNC4 O Receive Multiframe Sync for Transceiver 4
H10 Unused I Connect to VSS for Proper Operation