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Rainbow Electronics DS26519 User Manual

Page 22

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DS26519 16-Port T1/E1/J1 Transceiver

22 of 310

NAME PIN

TYPE

FUNCTION

TRANSMIT FRAMER

TSER1 B15

TSER2 D14

TSER3 T8

TSER4 R12

TSER5 T10

TSER6 U11

TSER7 C17

TSER8 E17

TSER9 U21

TSER10 R20

TSER11 W6

TSER12 C1

TSER13 E1

TSER14 H1

TSER15 H15

TSER16 F17

Input

Transmit NRZ Serial Data.

These pins are sampled on the falling edge of

TCLKn when the transmit-side elastic store is disabled. These pins are sampled
on the falling edge of TSYSCLKn when the transmit-side elastic store is enabled.
In IBO mode, data for multiple framers can be used in high-speed multiplexed
scheme. This is described in Section

9.8.2

. The table there presents the

combination of framer data for each of the streams.
TSYSCLKn is used as a reference when IBO is invoked. See

Table 9-8

.

TCLK1 F7

TCLK2 G10

TCLK3 R8

TCLK4 AB4

TCLK5 AB6

TCLK6 AB8

TCLK7 B21

TCLK8 D18

TCLK9 K14

TCLK10 P16

TCLK11 W5

TCLK12 M18

TCLK13 N8

TCLK14 N7

TCLK15 P21

TCLK16 D17

Input

Transmit Clock 1 to 16.

A 1.544MHz or a 2.048MHz primary clock. Used to

clock data through the transmit side of the transceiver. TSERn data is sampled
on the falling edge of TCLKn. TCLKn is used to sample TSERn when the elastic
store is not enabled or IBO is not used.

TSYSCLK1 W11
TSYSCLK2 A16
TSYSCLK3 K8
TSYSCLK4 U7
TSYSCLK5 V10
TSYSCLK6 U14
TSYSCLK7 C18
TSYSCLK8 Y21
TSYSCLK9 L4

TSYSCLK10 R19
TSYSCLK11 E2
TSYSCLK12 AA3
TSYSCLK13 J1
TSYSCLK14 J2
TSYSCLK15 E16
TSYSCLK16 M17

Input

Transmit System Clock 1 to 16.

1.544MHz, 2.048MHz, 4.096MHz, 8.192MHz,

or 16.384MHz clock. Only used when the transmit-side elastic store function is
enabled. Should be tied low in applications that do not use the transmit-side
elastic store. The clock can be 4.096MHz, 8.912MHz, or 16.384MHz when IBO
mode is used.