C8051F960-A-GQ Silicon Labs, C8051F960-A-GQ Datasheet - Page 250
C8051F960-A-GQ
Manufacturer Part Number
C8051F960-A-GQ
Description
8-bit Microcontrollers - MCU 128KB DC-DC LCD AES
Manufacturer
Silicon Labs
Datasheet
1.C8051F960-A-GQ.pdf
(492 pages)
Specifications of C8051F960-A-GQ
Rohs
yes
Core
8051
Processor Series
C8051
Data Bus Width
8 bit
Maximum Clock Frequency
24.5 MHz
Program Memory Size
128 KB
Data Ram Size
8 KB
On-chip Adc
Yes
Operating Supply Voltage
1.8 V to 3.8 V
Operating Temperature Range
- 40 C to + 85 C
Package / Case
QFP-80
Mounting Style
SMD/SMT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F960-A-GQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F960-A-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
- Current page: 250 of 492
- Download datasheet (3Mb)
C8051F96x
18.5. Flash Write and Erase Guidelines
Any system which contains routines which write or erase flash memory from software involves some risk
that the write or erase routines will execute unintentionally if the CPU is operating outside its specified
operating range of VDD, system clock frequency, or temperature. This accidental execution of flash modi-
fying code can result in alteration of flash memory contents causing a system failure that is only recover-
able by re-Flashing the code in the device.
To help prevent the accidental modification of flash by firmware, the VDD Monitor must be enabled and
enabled as a reset source on C8051F96x devices for the flash to be successfully modified. If either the
VDD Monitor or the VDD Monitor reset source is not enabled, a Flash Error Device Reset will be
generated when the firmware attempts to modify the flash.
The following guidelines are recommended for any system that contains routines which write or erase flash
from code.
18.5.1. VDD Maintenance and the VDD Monitor
Notes:
On C8051F96x devices, both the VDD Monitor and the VDD Monitor reset source must be enabled to write
or erase flash without generating a Flash Error Device Reset.
On C8051F96x devices, both the VDD Monitor and the VDD Monitor reset source are enabled by hard-
ware after a power-on reset.
250
1. If the system power supply is subject to voltage or current "spikes," add sufficient transient protection
2. Make certain that the minimum VDD rise time specification of 1 ms is met. If the system cannot meet
3. Keep the on-chip VDD Monitor enabled and enable the VDD Monitor as a reset source as early in
4. As an added precaution, explicitly enable the VDD Monitor and enable the VDD Monitor as a reset
5. Make certain that all writes to the RSTSRC (Reset Sources) register use direct assignment operators
6. Make certain that all writes to the RSTSRC register explicitly set the PORSF bit to a '1'. Areas to
devices to the power supply to ensure that the supply voltages listed in the Absolute Maximum
Ratings table are not exceeded.
this rise time specification, then add an external VDD brownout circuit to the RST pin of the device
that holds the device in reset until VDD reaches the minimum device operating voltage and re-
asserts RST if VDD drops below the minimum device operating voltage.
code as possible. This should be the first set of instructions executed after the Reset Vector. For C-
based systems, this will involve modifying the startup code added by the 'C' compiler. See your
compiler documentation for more details. Make certain that there are no delays in software between
enabling the VDD Monitor and enabling the VDD Monitor as a reset source. Code examples showing
this can be found in “AN201: Writing to Flash from Firmware," available from the Silicon Laboratories
web site.
source inside the functions that write and erase flash memory. The VDD Monitor enable instructions
should be placed just after the instruction to set PSWE to a 1, but before the flash write or erase
operation instruction.
and explicitly DO NOT use the bit-wise operators (such as AND or OR). For example, "RSTSRC =
0x02" is correct, but "RSTSRC |= 0x02" is incorrect.
check are initialization code which enables other reset sources, such as the Missing Clock Detector
or Comparator, for example, and instructions which force a Software Reset. A global search on
"RSTSRC" can quickly verify this.
Rev. 0.5
Related parts for C8051F960-A-GQ
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Development Boards & Kits - 8051 C8051F96X DEVELOPMENT KIT
Manufacturer:
Silicon Labs
Part Number:
Description:
KIT EVALUATION FOR CP2102
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
KIT EVAL FOR CP2103 USB TO UART
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
KIT EVAL FOR CP2201 ETH CTRLR
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DAUGHTER CARD CAP TOUCH SENSE
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
KIT STARTER CAP TOUCH SENSE
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEV KIT FOR C8051F320/F321
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEVKIT-F120/21/22/23/24/25/26/27
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEV KIT FOR C8051F310/F311
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEV KIT F220/221/226/230/231/236
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEV KIT F300/301/302/303/304/305
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEV KIT FOR C8051F330/F331
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEV KIT FOR F005/006/007
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEV KIT FOR F020/F021/F022/F023
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
KIT DEV FOR C8051F34X
Manufacturer:
Silicon Laboratories Inc
Datasheet: