LPC2468FBD208,551 NXP Semiconductors, LPC2468FBD208,551 Datasheet - Page 476

• Manufacturer Part Number: LPC2468FBD208,551
• Description: IC ARM7 MCU FLASH 512K 208-LQFP
• Manufacturer: NXP Semiconductors
• Series: LPC2400r

Specifications of LPC2468FBD208,551

• 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, POR, PWM, WDT
• Number Of I /o: 160
• Ram Size: 98K 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/I2S/ISP/SSP/UART/USB
• Maximum Clock Frequency: 72 MHz
• Number Of Programmable I/os: 160
• Number Of Timers: 6
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2, IRD-LPC2468-DEV, SAB-TFBGA208, KSK-LPC2468-PL
• Development Tools By Supplier: OM10100
• 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: 622-1025 - KIT DEV IND REF DESIGN LPC2468622-1024 - BOARD SCKT ADAPTER FOR TFBGA208568-4358 - DISPLAY QVGA TFT FOR OM10100568-4309 - BOARD EXTENSION LPCSTICK568-4308 - EVAL LPC-STICK WITH LPC2468MCB2400U - BOARD EVAL MCB2400 + ULINK2MCB2400 - BOARD EVAL FOR NXP LPC246X SER622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-4261; 935282457551; LPC2468FBD208-S

NXP Semiconductors
Table 420. Mode register (CAN1MOD - address 0xE004 4000, CAN2MOD - address 0xE004 8000) bit description
[1]
[2]
[3]
[4]
[5]
[6]
UM10237_4
User manual
Bit Symbol Value
2
3
4
5
6
7
During a Hardware reset or when the Bus Status bit is set '1' (Bus-Off), the Reset Mode bit is set '1' (present). After the Reset Mode bit
is set '0' the CAN Controller will wait for:
- one occurrence of Bus-Free signal (11 recessive bits), if the preceding reset has been caused by a Hardware reset or a CPU-initiated
reset.
- 128 occurrences of Bus-Free, if the preceding reset has been caused by a CAN Controller initiated Bus-Off, before re-entering the
Bus-On mode.
This mode of operation forces the CAN Controller to be error passive. Message Transmission is not possible. The Listen Only Mode can
be used e.g. for software driven bit rate detection and "hot plugging".
A write access to the bits MOD.1 and MOD.2 is possible only if the Reset Mode is entered previously.
Transmit Priority Mode is explained in more detail in
The CAN Controller will enter Sleep Mode, if the Sleep Mode bit is set '1' (sleep), there is no bus activity, and none of the CAN interrupts
is pending. Setting of SM with at least one of the previously mentioned exceptions valid will result in a wake-up interrupt. The CAN
Controller will wake up if SM is set LOW (wake-up) or there is bus activity. On wake-up, a Wake-up Interrupt is generated. A sleeping
CAN Controller which wakes up due to bus activity will not be able to receive this message until it detects 11 consecutive recessive bits
(Bus-Free sequence). Note that setting of SM is not possible in Reset Mode. After clearing of Reset Mode, setting of SM is possible only
when Bus-Free is detected again.
The LOM and STM bits can only be written if the RM bit is 1 prior to the write operation.
STM
TPM
SM
RPM
-
TM
[5]
[3][6]
[4]
0(normal)
1(self test)
0(CAN ID)
1(local prio)
0(wake-up)
1(sleep)
0(low active)
1(high active) RD input is active High (dominant bit = 1) -- reverse polarity.
-
0(disabled)
1(enabled)
8.2 Command Register (CAN1CMR - 0xE004 x004, CAN2CMR -
0xE004 8004)
Writing to this write-only register initiates an action within the transfer layer of the CAN
Controller. Bits not listed should be written as 0. Reading this register yields zeroes.
At least one internal clock cycle is needed for processing between two commands.
Function
Self Test Mode.
A transmitted message must be acknowledged to be considered successful.
The controller will consider a Tx message successful even if there is no
acknowledgment received.
In this mode a full node test is possible without any other active node on the bus
using the SRR bit in CANxCMR.
Transmit Priority Mode.
The transmit priority for 3 Transmit Buffers depends on the CAN Identifier.
The transmit priority for 3 Transmit Buffers depends on the contents of the Tx
Priority register within the Transmit Buffer.
Sleep Mode.
Normal operation.
The CAN controller enters Sleep Mode if no CAN interrupt is pending and there
is no bus activity. See the Sleep Mode description
Receive Polarity Mode.
RD input is active Low (dominant bit = 0).
Reserved, user software should not write ones to reserved bits.
Test Mode.
Normal operation.
The TD pin will reflect the bit, detected on RD pin, with the next positive edge of
the system clock.
Rev. 04 — 26 August 2009
Section 18–6.3 “Transmit Buffers
Chapter 18: LPC24XX CAN controllers CAN1/2
(TXB)”.
Section 18–9.2 on page
UM10237
© NXP B.V. 2009. All rights reserved.
494.
Reset
Value
0
0
0
0
0
0
476 of 792
RM
Set
x
x
0
x
0
x