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POD–51EH–C541U–12

  •  © Copyright  ICE Technology

4

 

Watchdog timer

 

Oscillator watchdog

 

Timer0

 

Timer1

 

SSC

When the jumper top is on, the 

BREAK

 mode is selected. In this case, only some of the internal

peripherals are stopped. This includes the following controller peripherals.

 

Interrupts

 

Watchdog timer

 

Oscillator timer

Timer0, Timer1, and SSC are not stopped in this mode.

In 

STOP

 and 

BREAK

, all of the internal peripherals start working from the same point they

stopped before the break as soon as the user program starts running again when you press the

GO

 or 

STEP

 buttons. When changing this jumper, the new 

STOP/BREAK

 mode takes effect

after the next 

RESET 

sequence. The default setup of the jumper is 

STOP

 mode selection (jumper

top out).

Note:

It is recommended to work in 

STOP

 mode only. The break mode needs to be se-

lected only if your application has limitations that do not allow the timers to be
stopped in monitor mode.

XL0..XL7: Port Select Jumpers

These eight 3-pin jumpers select the signals that are routed to the trace board and are shown in
the trace window under the header P1. For any jumper in this group the jumper top position pin
2–pin 3 means that the corresponding pin of the recreated Port0 is traced. Pin 1 of each jumper
is left free and can be connected to any signal on the target or port headers on the pod. For ex-
ample setting XL4 in position 2–3 means that pin P0.4 is traced. If pin XL4.1, for
example, is connected to a signal P4.3 on the target, you can choose between tracing signal
P0.4 or P4.3 by moving the jumper between positions 2–3 and 1–2.

XH0..XH7: Port Select Jumpers

This group of jumpers is similar to XL0..XL7 except pin 3 of each jumper is connected to the
recreated Port2 and pin 1 is left free.

Summary of Contents for POD-51EH-C541U-12

Page 1: ...RST P1 P3 7 6 5 4 3 2 1 0 USB FULL 3 2 1 D P D M Figure 1 POD 51EH C541U 12 Operating Instructions The POD 51EH C541U 12 supports the Siemens C541U controller which is based on the C500 core This pod...

Page 2: ...igh selecting single chip mode that is implemented by a 22K pull up resistor on the pin POD 51EH C541U 12 has two operating modes Single chip Expanded The active mode is selected by the EA pin during...

Page 3: ...d mode the jumper top needs to be across pins 2 and 3 This jumper is off by de fault DP DM Connection of the Emulator USB Plug When the DP and DM jumpers are on the D and D USB data line of the contro...

Page 4: ...STOP mode only The break mode needs to be se lected only if your application has limitations that do not allow the timers to be stopped in monitor mode XL0 XL7 Port Select Jumpers These eight 3 pin j...

Page 5: ...is important to feed the watchdog periodically otherwise problems during the debug process might occur 5 During hardware power down initiated by a low level detected on pin 69 HWPD of the target adap...

Page 6: ...is active when the user program is running Pins 2 and 3 are not used currently but can be used in the future J2 P3 6 P3 7 This header carries the recreated signals P3 6 WR pin J2 1 and P3 7 RD pin J2...

Page 7: ...e of single chip mode when the target does not force this pin This difference must be taken into account if the target pin is tied to a pull down resistor A sufficiently low pull down 1 5K or lower is...

Page 8: ...mA while main taining valid TTL output logic levels Port2 pins also have pull up resistors of 22K which might be different from the controller internal pull ups Connecting the Pod to a Target System 1...

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