LPC2478FBD208,551 NXP Semiconductors, LPC2478FBD208,551 Datasheet - Page 663
LPC2478FBD208,551
Manufacturer Part Number
LPC2478FBD208,551
Description
IC ARM7 MCU 512K LCD 208-LQFP
Manufacturer
NXP Semiconductors
Series
LPC2400r
Datasheets
1.OM11077.pdf
(91 pages)
2.OM11077.pdf
(792 pages)
3.OM11077.pdf
(10 pages)
4.LPC2478FBD208551.pdf
(89 pages)
Specifications of LPC2478FBD208,551
Program Memory Type
FLASH
Program Memory Size
512KB (512K x 8)
Package / Case
208-LQFP
Core Processor
ARM7
Core Size
16/32-Bit
Speed
72MHz
Connectivity
CAN, EBI/EMI, Ethernet, I²C, Microwire, MMC, SPI, SSI, SSP, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT
Number Of I /o
160
Ram Size
96K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
LPC24
Core
ARM7TDMI-S
Data Bus Width
16 bit, 32 bit
Data Ram Size
98 KB
Interface Type
CAN/I2C/I2S/IrDA/SPI/SSP/UART/USB
Maximum Clock Frequency
72 MHz
Number Of Programmable I/os
160
Number Of Timers
4
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2, DK-35TS-LPC2478, DK-57TS-LPC2478, DK-57VTS-LPC2478, SOMDIMM-LPC2478, SAB-TFBGA208, KSK-LPC2478-JL, MCB2470
Development Tools By Supplier
OM11015, OM11019, OM11022
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
On-chip Dac
1-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
622-1034 - PROGRAMMERS, DEVELOPMENT SYSTEMS622-1033 - KIT LCD TOUCH 5.7" FOR LPC2478MCB2470 - BOARD EVAL NXP LPC247X SERIESOM11022 - EVAL LPC-STICK WITH LPC2478OM11019 - BOARD EVAL FOR LPC2478568-4742 - MODULE DIMM LPC2478 ARM7568-4741 - KIT LCD TOUCH 5.7" FOR LPC2478622-1028 - KIT LCD TOUCH 5.7" FOR LPC2478KSDKLPC2478-PL - KIT IAR KICKSTART NXP LPC2478622-1024 - BOARD SCKT ADAPTER FOR TFBGA208568-4369 - BOARD EVAL FOR LPC2478622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-4363
935284069551
LPC2478FBD208-S
935284069551
LPC2478FBD208-S
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC2478FBD208,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
Part Number:
LPC2478FBD208,551
Manufacturer:
NXP/恩智浦
Quantity:
20 000
- OM11077 PDF datasheet
- OM11077 PDF datasheet #2
- OM11077 PDF datasheet #3
- LPC2478FBD208551 PDF datasheet #4
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- Download datasheet (5Mb)
NXP Semiconductors
4. Register description
UM10237_4
User manual
4.1 Watchdog Mode Register (WDMOD - 0xE000 0000)
When the Watchdog counter underflows, the program counter will start from 0x0000 0000
as in the case of external reset. The Watchdog time-out flag (WDTOF) can be examined
to determine if the Watchdog has caused the reset condition. The WDTOF flag must be
cleared by software.
The watchdog timer block uses two clocks: PCLK and WDCLK. PCLK is used for the APB
accesses to the watchdog registers. The WDCLK is used for the watchdog timer counting.
There is some synchronization logic between these two clock domains. When the
WDMOD and WDTC registers are updated by APB operations, the new value will take
effect in 3 WDCLK cycles on the logic in the WDCLK clock domain. When the watchdog
timer is counting on WDCLK, the synchronization logic will first lock the value of the
counter on WDCLK and then synchronize it with the PCLK for reading as the WDTV
register by the CPU.
The Watchdog contains 4 registers as shown in
Table 584. Summary of Watchdog registers
[1]
The WDMOD register controls the operation of the Watchdog as per the combination of
WDEN and RESET bits.
Name
WDMOD
WDTC
WDFEED
WDTV
WDCLKSEL Watchdog clock source selection register.
Reset Value reflects the data stored in used bits only. It does not include reserved bits content.
Description
Watchdog mode register. This register contains
the basic mode and status of the Watchdog
Timer.
Watchdog timer constant register. This register
determines the time-out value.
Watchdog feed sequence register. Writing 0xAA
followed by 0x55 to this register reloads the
Watchdog timer with the value contained in
WDTC.
Watchdog timer value register. This register
reads out the current value of the Watchdog
timer.
Rev. 04 — 26 August 2009
Chapter 27: LPC24XX WatchDog Timer (WDT)
Table 27–584
Access Reset
R/W
R/W
WO
RO
R/W
below.
Value
0
0xFF
NA
0xFF
0
UM10237
© NXP B.V. 2009. All rights reserved.
[1]
Address
0xE000 0000
0xE000 0004
0xE000 0008
0xE000 000C
0xE000 0010
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