C8051F000DK-H Silicon Laboratories Inc, C8051F000DK-H Datasheet - Page 95
![no-image](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_sml.jpg)
C8051F000DK-H
Manufacturer Part Number
C8051F000DK-H
Description
DEV KIT FOR C8051F000/F001/F002
Manufacturer
Silicon Laboratories Inc
Datasheet
1.C8051F005-TB.pdf
(171 pages)
Specifications of C8051F000DK-H
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 95 of 171
- Download datasheet (2Mb)
13.4.
The external /RST pin provides a means for external circuitry to force the MCU into a reset state. Asserting an
active-low signal on the /RST pin will cause the MCU to enter the reset state. Although there is a weak internal
pullup, it may be desirable to provide an external pull-up and/or decoupling of the /RST pin to avoid erroneous
noise-induced resets. The MCU will remain in reset until at least 12 clock cycles after the active-low /RST signal is
removed. The PINRSF flag (RSTSRC.0) is set on exit from an external reset. The /RST pin is also 5V tolerant.
13.5.
The Missing Clock Detector is essentially a one-shot circuit that is triggered by the MCU system clock. If the
system clock goes away for more than 100s, the one-shot will time out and generate a reset. After a Missing Clock
Detector reset, the MCDRSF flag (RSTSRC.2) will be set, signifying the MSD as the reset source; otherwise, this
bit reads 0. The state of the /RST pin is unaffected by this reset. Setting the MSCLKE bit in the OSCICN register
(see Figure 14.2) enables the Missing Clock Detector.
13.6.
Comparator 0 can be configured as an active-low reset input by writing a 1 to the C0RSEF flag (RSTSRC.5).
Comparator 0 should be enabled using CPT0CN.7 (see Figure 8.3) at least 20s prior to writing to C0RSEF to
prevent any turn-on chatter on the output from generating an unwanted reset. When configured as a reset, if the
non-inverting input voltage (on CP0+) is less than the inverting input voltage (on CP0-), the MCU is put into the
reset state. After a Comparator 0 Reset, the C0RSEF flag (RSTSRC.5) will read 1 signifying Comparator 0 as the
reset source; otherwise, this bit reads 0. The state of the /RST pin is unaffected by this reset. Also, Comparator 0
can generate a reset with or without the system clock.
13.7.
The external CNVSTR signal can be configured as an active-low reset input by writing a 1 to the CNVRSEF flag
(RSTSRC.6). The CNVSTR signal can appear on any of the P0, P1, or P2 I/O pins as described in Section 15.1.
(Note that the Crossbar must be configured for the CNVSTR signal to be routed to the appropriate Port I/O.) The
Crossbar should be configured and enabled before the CNVRSEF is set to configure CNVSTR as a reset source.
When configured as a reset, CNVSTR is active-low and level sensitive. After a CNVSTR reset, the CNVRSEF flag
(RSTSRC.6) will read 1 signifying CNVSTR as the reset source; otherwise, this bit reads 0. The state of the /RST
pin is unaffected by this reset.
13.8.
The MCU includes a programmable Watchdog Timer (WDT) running off the system clock. The WDT will force
the MCU into the reset state when the watchdog timer overflows. To prevent the reset, the WDT must be restarted
by application software before the overflow occurs. If the system experiences a software/hardware malfunction
preventing the software from restarting the WDT, the WDT will overflow and cause a reset. This should prevent
the system from running out of control.
The WDT is automatically enabled and started with the default maximum time interval on exit from all resets. If
desired the WDT can be disabled by system software or locked on to prevent accidental disabling. Once locked, the
WDT cannot be disabled until the next system reset. The state of the /RST pin is unaffected by this reset.
95
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
External Reset
Missing Clock Detector Reset
Comparator 0 Reset
External CNVSTR Pin Reset
Watchdog Timer Reset
Rev. 1.7
Related parts for C8051F000DK-H
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![500SAAB8M00000ACF](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
SMD/C/SINGLE-ENDED OUTPUT SILICON OSCILLATOR
Manufacturer:
Silicon Laboratories Inc
![SI3210MFT](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![4010-DAAKF_868](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
N/A N/A/SI4010 AES KEYFOB DEMO WITH LCD RX
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![4010-DASKF_868](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
N/A N/A/SI4010 SIMPLIFIED KEY FOB DEMO WITH LED RX
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![4432-SEB1 C 915](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
N/A/-40 TO 85 OC/EZLINK MODULE; F930/4432 HIGH BAND (REV E/B1)
Manufacturer:
Silicon Laboratories Inc
![4432-SEB1 D 470](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
EZLink Module; F930/4432 Low Band (rev e/B1)
Manufacturer:
Silicon Laboratories Inc
![4460-TCE10D434-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
I/4460 10 DBM RADIO TEST CARD 434 MHZ
Manufacturer:
Silicon Laboratories Inc
![4461-TSQ14D868-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
I/4461 14 DBM RADIO TEST CARD 868 MHZ
Manufacturer:
Silicon Laboratories Inc
![4463-TCE20C460-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
I/4463 20 DBM RFSWITCH RADIO TEST CARD 460 MHZ
Manufacturer:
Silicon Laboratories Inc
![4463-TCE20C868-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
I/4463 20 DBM RADIO TEST CARD 868 MHZ
Manufacturer:
Silicon Laboratories Inc
![4463-TCE27F868-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
I/4463 27 DBM RADIO TEST CARD 868 MHZ
Manufacturer:
Silicon Laboratories Inc
![4463-TCE30E915S-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
I/4463 SKYWORKS 30 DBM RADIO TEST CARD 915 MHZ
Manufacturer:
Silicon Laboratories Inc
![4463-TCE30E915R-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
N/A N/A/-40 TO 85 OC/4463 RFMD 30 DBM RADIO TEST CARD 915 MHZ
Manufacturer:
Silicon Laboratories Inc
![4463-TSQ20D169-EK](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_tmb.jpg)
Part Number:
Description:
I/4463 20 DBM RADIO TEST CARD 169 MHZ
Manufacturer:
Silicon Laboratories Inc