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