DS21354 & DS21554
14 of 117
PIN
SYMBOL
TYPE
DESCRIPTION
4
JTCLK
I
IEEE 1149.1 Test Clock Signal
7
JTDI
I
IEEE 1149.1 Test Data Input
10
JTDO
O
IEEE 1149.1 Test Data Output
2
JTMS
I
IEEE 1149.1 Test Mode Select
5
JTRST*
I
IEEE 1149.1 Test Reset
12
LIUC
I
Line Interface Connect
21
MCLK
I
Master Clock Input
55
MUX
I
Bus Operation
8
NC
–
No Connect (do not connect any signal to this pin)
9
NC
–
No Connect (do not connect any signal to this pin)
15
NC
–
No Connect (do not connect any signal to this pin)
23
NC
–
No Connect (do not connect any signal to this pin)
26
NC
–
No Connect (do not connect any signal to this pin)
27
NC
–
No Connect (do not connect any signal to this pin)
28
NC
–
No Connect (do not connect any signal to this pin)
1
RCHBLK
O
Receive Channel Block
92
RCHCLK
O
Receive Channel Clock
6
RCL
O
Receive Carrier Loss
82
RCLK
O
Receive Clock
88
RCLKI
I
Receive Clock Input
89
RCLKO
O
Receive Clock Output
74
RD*(DS*)
I
Read Input(Data Strobe)
85
RDATA
O
Receive Data
97
RFSYNC
O
Receive Frame Sync
79
RLCLK
O
Receive Link Clock
78
RLINK
O
Receive Link Data
99
RLOS/LOTC
O
Receive Loss Of Sync/ Loss Of Transmit Clock
96
RMSYNC
O
Receive Multiframe Sync
87
RNEGI
I
Receive Negative Data Input
90
RNEGO
O
Receive Negative Data Output
86
RPOSI
I
Receive Positive Data Input
91
RPOSO
O
Receive Positive Data Output
17
RRING
I
Receive Analog Ring Input
95
RSER
O
Receive Serial Data
94
RSIG
O
Receive Signaling Output
93
RSIGF
O
Receive Signaling Freeze Output
98
RSYNC
I/O
Receive Sync
100
RSYSCLK
I
Receive System Clock
16
RTIP
I
Receive Analog Tip Input
18
RVDD
–
Receive Analog Positive Supply
19
RVSS
–
Receive Analog Signal Ground
20
RVSS
–
Receive Analog Signal Ground
24
RVSS
–
Receive Analog Signal Ground
33
TCHBLK
O
Transmit Channel Block
53
TCHCLK
O
Transmit Channel Clock
46
TCLK
I
Transmit Clock
