
DS21Q58 E1 Quad Transceiver
11 of 74
NAME
PIN
PARALLEL
PORT ENABLED
SERIAL PORT
ENABLED
TYPE
FUNCTION
[Serial Port Mode in Brackets]
55
TCLK2
—
I
Transmit Clock
56
TSER2
—
I
Transmit Serial Data
57
TSYNC2
—
I/O
Transmit Sync
58
DVSS2
—
Digital Signal Ground
59
DVDD2
—
Digital Positive Supply
60
OUTB1
—
O
User-Selectable Output B
61
OUTA1
—
O
User-Selectable Output A
62
SYSCLK1
—
I
Transmit/Receive System Clock
63
RSER1
—
O
Receive Serial Data
64
RSYNC1
—
I/O
Receive Sync
65
RVSS2
—
Receive Analog Signal Ground
66
RTIP1
—
I
Receive Analog Tip Input
67
RRING1
—
I
Receive Analog Ring Input
68
RVDD2
—
Receive Analog Positive Supply
69
AJACKO
—
O
Alternate Jitter Attenuator Clock Output
70
AJACKI
—
I
Alternate Jitter Attenuator Clock Input
71
4/8/16MCK
—
O
4.096MHz, 8.192MHz, or 16.384MHz Clock
72
REFCLK
—
I/O
Reference Clock
73
MCLK
—
I
Master Clock Input
74
WR (R/W)
SDI
I
Write Input (Read/Write) [Serial Data Input]
75
RD (DS)
SCLK
I
Read Input (Data Strobe) [Serial Port Clock]
76
TTIP1
—
O
Transmit Analog Tip Output
77
TVSS1
—
Transmit Analog Signal Ground
78
TVDD1
—
Transmit Analog Positive Supply
79
TRING1
—
O
Transmit Analog Ring Output
80
TCLK1
—
I
Transmit Clock
81
TSER1
—
I
Transmit Serial Data
82
TSYNC1
—
I/O
Transmit Sync
83
DVSS1
—
Digital Signal Ground
84
DVDD1
—
Digital Positive Supply
85
OUTB4
—
O
User-Selectable Output B
86
OUTA4
—
O
User-Selectable Output A
87
SYSCLK4
—
I
Transmit/Receive System Clock
88
RSER4
—
O
Receive Serial Data
89
RSYNC4
—
I/O
Receive Sync
90
RVSS1
—
Receive Analog Signal Ground
91
RTIP4
—
I
Receive Analog Tip Input
92
RRING4
—
I
Receive Analog Ring Input
93
RVDD1
—
Receive Analog Positive Supply
94
INT
—
O
Interrupt
95
PBTS
—
I
Parallel Bus Type Select
96
BTS0
—
Bus Type Select 0
97
BTS1
—
Bus Type Select 1
98
CS
—
I
Chip Select
99
TS0
—
I
Transceiver Select 0
100
TS1
—
I
Transceiver Select 1
Note: EQVSS lines are wired to RVSS.