Instruction Manual

DS26503 T1/E1/J1 BITS Element
24 of 123
MODE
PIN TYPE
PARALLEL
PORT
SERIAL
PORT
HARDWARE
FUNCTION
17 I TCLK TCLK TCLK External Transmit Clock Input
18 O TCLKO TCLKO TCLKO Transmit Clock Output
19 O TNEGO TNEGO TNEGO Transmit Negative-Data Output
20 O TPOSO TPOSO TPOSO Transmit Positive-Data Output
21 I TSER TSER TSER Transmit Serial Data
23 I/O TS TS TS T1/E1 Mode: Transmit Frame/Multiframe Sync
25 O RCLK RCLK RCLK Receive Clock
26 O RS RS RS T1/E1 Mode: Receive Frame/Multiframe Boundary
27 — N.C. N.C. N.C. No Connect. This pin must be left open.
28 O RSER RSER RSER Receive Serial Data
29 O RAIS RAIS RAIS Receive Alarm Indication Signal
30 O RLOF RLOF RLOF Receive Loss of Frame
31 I — — TCSS1
Parallel Port Mode: Unused, should be connected to
V
SS
.
Serial Port Mode: Unused, should be connected to V
SS
.
Hardware Mode: Transmit Clock Source Select 1
32 O RLOS RLOS RLOS Receive Loss Of Signal
33 I JTMS JTMS JTMS IEEE 1149.1 Test Mode Select
34 I JTCLK JTCLK JTCLK IEEE 1149.1 Test Clock Signal
35 I JTRST JTRST JTRST IEEE 1149.1 Test Reset
36 I JTDI JTDI JTDI IEEE 1149.1 Test Data Input
37 O JTDO JTDO JTDO IEEE 1149.1 Test Data Output
38 I RVDD RVDD RVDD Receive Analog Positive Supply
39 I TSTRST TSTRST TSTRST Test/Reset
40,
43, 45
I RVSS RVSS RVSS Receive Analog Signal Ground
41 I RTIP RTIP RTIP Receive Analog Tip Input
42 I RRING RRING RRING Receive Analog Ring Input
44 I MCLK MCLK MCLK Master Clock Input
46 I/O INT INT JACKS
Parallel Port Mode: Interrupt
Serial Port Mode: Interrupt
Hardware Mode: Jitter Attenuator clock select
47 O PLL_OUT PLL_OUT PLL_OUT Transmit PLL (TX PLL) Clock Output
48 I — — TMODE2
Parallel Port Mode: Unused, should be connected to
V
SS
.
Serial Port Mode: Unused, should be connected to V
SS
.
Hardware Mode: Transmit Mode Select 2
49 I — — TMODE1
Parallel Port Mode: Unused, should be connected to
V
SS
.
Serial Port Mode: Unused, should be connected to V
SS
.
Hardware Mode: Transmit Mode Select 1
50 I THZE THZE THZE Transmit High-Impedance Enable
51 O TTIP TTIP TTIP Transmit Analog Tip Output
52 I TVSS TVSS TVSS Transmit Analog Signal Ground
53 I TVDD TVDD TVDD Transmit Analog Positive Supply
54 O TRING TRING TRING Transmit Analog Ring Output
55 I BTS — HBE
Parallel Port Mode: Bus Type Select (Motorola/Intel)
Serial Port Mode: Unused, should be connected to V
SS
.
Hardware Mode: Receive and Transmit DB3/B8ZS
Enable
57 I BIS0 BIS0 BIS0 Bus Interface Select Mode 0
59 I BIS1 BIS1 BIS1 Bus Interface Select Mode 1