LPC1114FHN33/203,5 NXP Semiconductors, LPC1114FHN33/203,5 Datasheet - Page 287

• Manufacturer Part Number: LPC1114FHN33/203,5
• Description: ARM Microcontrollers - MCU Cortex-M0 32 kB Fl 8 kB SRAM
• Manufacturer: NXP Semiconductors

Specifications of LPC1114FHN33/203,5

• Rohs: yes
• Core: ARM Cortex M0
• Processor Series: LPC1114
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 8 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.8 V to 3.6 V
• Operating Temperature Range: - 65 C to + 150 C
• Package / Case: HVQFN-33
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 260

NXP Semiconductors
UM10398
User manual
16.6.2.3 CAN message interface command mask registers
Table 254. CAN message interface command request registers (CANIF1_CMDREQ, address
[1]
The control bits of the IFx Command Mask Register specify the transfer direction and
select which of the IFx Message Buffer Registers are source or target of the data
transfer.The functions of the register bits depend on the transfer direction (read or write)
which is selected in the WR/RD bit (bit 7) of this Command mask register.
Select the WR/RD to
Table 255. CAN message interface command mask registers (CANIF1_CMDMSK, address
Bit
5:0
14:6
15
31:16
Bit
0
1
one for the Write transfer direction (write to message RAM)
zero for the Read transfer direction (read from message RAM)
When a message number that is not valid is written into the Command request registers, the message
number will be transformed into a valid value and that message object will be transferred.
Symbol Value
MN
-
BUSY
-
Symbol
DATA_B
DATA_A
0x4005 0020 and CANIF2_CMDREQ, address 0x4005 0080) bit description
0x4005 0024 and CANIF2_CMDMSK, address 0x4005 0084) bit description - write
direction
All information provided in this document is subject to legal disclaimers.
0
1
-
Rev. 12 — 24 September 2012
Value Description
0
1
0
1
Description
Message number
0x01 - 0x20 = Valid message numbers. The
message object in the message RAM is selected
for data transfer.
0x00 = Not a valid message number. This value is
interpreted as 0x20.
0x21 - 0x3F = Not a valid message number. This
value is interpreted as 0x01 - 0x1F.
reserved
BUSY flag
Set to zero by hardware when read/write action to
this Command request register has finished.
Set to one by hardware when writing to this
Command request register.
Reserved
Access data bytes 4-7
Data bytes 4-7 unchanged.
Transfer data bytes 4-7 to message object.
Access data bytes 0-3
Data bytes 0-3 unchanged.
Transfer data bytes 0-3 to message object.
Chapter 16: LPC111x/LPC11Cxx C_CAN controller
[1]
[1]
UM10398
© NXP B.V. 2012. All rights reserved.
-
-
Reset
Value
0x00
0
Reset
value
0
0
Access
R/W
R/W
Access
R/W
-
RO
-
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