PEB22554 SIEMENS [Siemens Semiconductor Group], PEB22554 Datasheet - Page 202

• Manufacturer Part Number: PEB22554
• Description: ICs for Communications
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Pin Definitions and Function (cont’d)
Pin No.
120 - 123
126 - 129
51 - 54
57 - 60
11, 29,
56, 92,
102, 125,
10, 28,
55, 91,
101, 124,
112
113
141
140
131
63, 118
Semiconductor Group
RSVD
Symbol
XP(A-D)1
XP(A-D)2
XP(A-D)3
XP(A-D)4
V
V
TDI
TDO
TMS
TCK
TRS
SS
DD
Input (I)
Output (O)
O
O
I
I
I + PU
O
I + PU
I + PU
I + PU
I/O + PU
Function
Data Link Bit Transmit (DLX)
Enabled with PC(1-4).XPC(2-0) = 110.
This output provides a 4 kHz signal which marks
the DL-bit position within the data stream on XDI.
Transmit Clock (XCLK)
Enabled with PC(1-4).XPC(2-0) = 111.
Transmit line clock, frequency: 1.544 MHz.
Derived from SCLKX/R, RCLK or internally
generated by the DCO-X circuitry.
Power Ground
Supply for digital subcircuits (0 V)
For correct operation, all six pins have to be
connected to ground.
Positive Power Supply
for the digital subcircuits (3.3 V)
For correct operation, all six pins have to be
connected to positive power supply.
Test Data Input for JTAG Boundary Scan
acc. to IEEE Std. 1149.1
Test Data Output for Boundary Scan
Test Mode Select for Boundary Scan
Test Clock for Boundary Scan
Test Reset for Boundary Scan
(active low)
If the JTAG Boundary Scan is not used this pin
can be connected to pin RES or VSS.
Reserved
202
General Features T1
PEB 22554
09.98