User Guide

NPE-4
2 - Broadband System PAMS Technical Documentation
Page 2-38 ãNokia Corporation. Original
Ostrich
The STI-block, placed in the UPP "brain block", has a trace interface that can be used for
tracing messages written by the DSP or the MCU. Writings or reading to a specific I/O
register or an address match on the MCU address bus can be traced on the interface. The
interface consists of three lines plus a GND line. One of the great advantages, compared
to JTAG, is that the SW in the phone can run normally while trace messages is lead out to
the Ostrich box. Data can be captured at 40MHz on the interface.
The main purpose for the interface is debugging in R&D phases. It can also be used for
flashing interface.
JTAG interface
The JTAG interface is used to monitor and or debug DSP activity. The connections from
the UPP are routed to PWB pads, which are free for access.
Table 10: Ostrich interface
Signal Pin (test point) Min. Max. Unit Remarks
STITxD J471 0 1.8 Volt Data to transmit
STISClK J472 0 1.8 Clock
STIRxD J473 0 1.8 Data to receive
VBAT J470 2.9 5.3 Supply to Ostrich
GND J474 0 GND
Table 11: JTAG interface levels
Signal Pin (test point) Parameter Min Typ Max Unit Remarks
JTMS J480 Logic "1"
Logic "0"
1,2
0
1,8
0,5
Volt
JRst J481 Logic "1"
Logic "0"
1,2
0
1,8
0,5
JTAG reset.
JTDI J482 Logic "1"
Logic "0"
1,2
0
1,8
0,5
VIO J483 1,72 1,8 1,88 JTAG supply voltage
JTDO J484 Logic "1"
Logic "0"
1,2
0
1,8
0,5
JTAG data output
JTCK_ret J485 Logic "1"
Logic"0"
1,2
0
1,8
0,5
JTAG return clock
JTCLK J486 Logic "1"
Logic "0"
1,2 1,8 JTAG clock
EMU0 J487 Logic "1"
Logic "0"
1,2
0
1,8
0,5
Emulation pin 0
EMU1 J488 Logic "1"
Logic "0"
1,2
0
1,8
0,5
Emulation pin 1
GND J489 0 JTAG GND