參數(shù)資料
型號(hào): TMS320LF2404A
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號(hào)處理
英文描述: DSP CONTROLLERS
中文描述: DSP控制器
文件頁數(shù): 51/132頁
文件大?。?/td> 1660K
代理商: TMS320LF2404A
SPRS145J JULY 2000 REVISED NOVEMBER 2004
51
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
controller area network (CAN) module
The CAN module is a full-CAN controller designed as a 16-bit peripheral module and supports the following
features:
CAN specification 2.0B (active)
Standard data and remote frames
Extended data and remote frames
Six mailboxes for objects of 0- to 8-byte data length
Two receive mailboxes, two transmit mailboxes
Two configurable transmit/receive mailboxes
Local acceptance mask registers for mailboxes 0 and 1 and mailboxes 2 and 3
Configurable standard or extended message identifier
Programmable bit rate
Programmable interrupt scheme
Readable error counters
Self-test mode
In this mode, the CAN module operates in a loop-back fashion, receiving its own transmitted message.
The CAN module is a 16-bit peripheral. The accesses are split into the control/status-registers accesses and
the mailbox-RAM accesses.
CAN peripheral registers: The CPU can access the CAN peripheral registers only using 16-bit write accesses.
The CAN peripheral always presents full 16-bit data to the CPU bus during read cycles.
CAN controller architecture
Figure 13 shows the basic architecture of the CAN controller through this block diagram of the CAN Peripherals.
Temporary Receive Buffer
Data
ID
CAN Module
Control Logic
CPU Interface/
Memory Management Unit
CAN
Core
Control/Status Registers
Interrupt Logic
Control Bus
Acceptance Filter
Transmit Buffer
RAM 48x16
CANTX
CAN
Transceiver
Matchid
CPU
mailbox 0
mailbox 1
mailbox 2
mailbox 3
mailbox 4
mailbox 5
R
R
T/R
T/R
T
T
CANRX
Figure 13. CAN Module Block Diagram
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