
DS21455/DS21458 Quad T1/E1/J1 Transceivers
30 of 270
PIN
B7
B9
H20
L20
N17
J4
C13
C3
U13
W6
F18
D7
T20
V9
B17
A6
J20
U1
Y15
N1
V19
W13
V18
K2
T1
W20
U10
M2
G17
G4
Y12
J1
D14
F3
U14
N3
B13
E3
M18
M4
A15
A4
R17
M3
C14
B4
T17
N2
K4
D17
A2
V14
F1
NAME
DVSS
DVSS
DVSS
DVSS
DVSS
ESIBRD1
ESIBRD2
ESIBRD3
ESIBRD4
ESIBS0_1
ESIBS0_2
ESIBS0_3
ESIBS0_4
ESIBS1_1
ESIBS1_2
ESIBS1_3
ESIBS1_4
INT
JTCLK
JTDI
JTDO
JTMS
JTRST
LIUC/TPD
MCLK1
MCLK2
MUX
RCHBLK1
RCHBLK2
RCHBLK3
RCHBLK4
RCHCLK1
RCHCLK2
RCHCLK3
RCHCLK4
RCLK1
RCLK2
RCLK3
RCLK4
RCLKI1
RCLKI2
RCLKI3
RCLKI4
RCLKO1
RCLKO2
RCLKO3
RCLKO4
RD
(
DS
)
RFSYNC1
RFSYNC2
RFSYNC3
RFSYNC4
RLCLK1
TYPE
—
—
—
—
—
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
I
I
O
I
I
I
I
I
I
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
I
O
O
O
O
I
O
O
O
O
O
FUNCTION
Digital Signal Ground
Digital Signal Ground
Digital Signal Ground
Digital Signal Ground
Digital Signal Ground
Extended System Information Bus Read for Transceiver 1
Extended System Information Bus Read for Transceiver 2
Extended System Information Bus Read for Transceiver 3
Extended System Information Bus Read for Transceiver 4
Extended System Information Bus 0 for Transceiver 1
Extended System Information Bus 0 for Transceiver 2
Extended System Information Bus 0 for Transceiver 3
Extended System Information Bus 0 for Transceiver 4
Extended System Information Bus 1 for Transceiver 1
Extended System Information Bus 1 for Transceiver 2
Extended System Information Bus 1 for Transceiver 3
Extended System Information Bus 1 for Transceiver 4
Interrupt for All Four Transceivers
JTAG Clock
JTAG Data Input
JTAG Data Output
JTAG Test Mode Select
Jtag Reset
Line Interface Connect for All Four Transceivers or Transmit Power-Down Enable
Master Clock for Transceiver 1 and Transceiver 3
Master Clock for Transceiver 2 and Transceiver 4
Mux Bus Select
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
Receive Clock Input for the LIU on Transceiver 1
Receive Clock Input for the LIU on Transceiver 2
Receive Clock Input for the LIU on Transceiver 3
Receive Clock Input for the LIU on Transceiver 4
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