參數(shù)資料
型號(hào)： TMS320LC542-40
元件分類： 數(shù)字信號(hào)處理
英文描述： Digital Signal Processor
中文描述： 數(shù)字信號(hào)處理器
文件頁數(shù)： 12/111頁
文件大?。?/td> 1426K
代理商： TMS320LC542-40
TMS320C54x, TMS320LC54x, TMS320VC54x
FIXED-POINT DIGITAL SIGNAL PROCESSORS
SPRS039C – FEBRUARY 1996 – REVISED DECEMBER 1999
12
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
’54x Signal Descriptions
TERMINAL
NAME
DESCRIPTION
TYPE
DATA SIGNALS
A22
A21
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
(MSB)
(LSB)
O/Z
Parallel port address bus A22 (MSB) through A0 (LSB). The sixteen LSBs (A15–A0) are multiplexed to address
external data/program memory or I/O. A15–A0 are placed in the high-impedance state in the hold mode. A15–A0
also go into the high-impedance state when EMU1/OFF is low. The seven MSBs (A22 to A16) are used for
extended program memory addressing (’548 and ’549 only).
On the ’548 and ’549 devices, the address bus have a feature called bus holder that eliminates passive
components and the power dissipation associated with it. The bus holders keep the address bus at the previous
logic level when the bus goes into a high-impedance state. The bus holders on the address bus are always
enabled.
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
(MSB)
(LSB)
I/O/Z
Parallel port data bus D15 (MSB) through D0 (LSB). D15–D0 are multiplexed to transfer data between the core
CPU and external data/program memory or I/O devices. D15–D0 are placed in the high-impedance state when
not output or when RS or HOLD is asserted. D15–D0 also go into the high-impedance state when EMU1/OFF
is low.
The data bus has a feature called bus holder that eliminates passive components and the power dissipation
associated with it. The bus holders keep the data bus at the previous logic level when the bus goes into a
high-impedance state. These bus holders are enabled or disabled by the BH bit in the bank switching control
register (BSCR).
INITIALIZATION, INTERRUPT AND RESET OPERATIONS
IACK
O/Z
Interrupt acknowledge signal. IACK indicates the receipt of an interrupt and that the program counter is fetching
the interrupt vector location designated by A15–0. IACK also goes into the high-impedance state when
EMU1/OFF is low.
INT0
INT1
INT2
INT3
I = Input, O = Output, Z = High impedance
I
External user interrupt inputs. INT0–INT3 are prioritized and are maskable by the interrupt mask register and the
interrupt mode bit. INT0 –INT3 can be polled and reset by the interrupt flag register.
相關(guān)PDF資料
PDF描述
TMS320LC542-50 Digital Signal Processor
TMS320UVC5409 16-Bit Digital Signal Processor
TMS320UVC5402 Fixed-Point Digital Signal Processor(定點(diǎn)DSP)
TMS320VC5409PGE-100 16-Bit Digital Signal Processor
TMS320VC5409GGU-100 16-Bit Digital Signal Processor
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMS320LC542PBK1-50 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Dig Signal Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320LC542PBK2-50 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Dig Signal Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320LC542PGE1-40 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Dig Signal Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320LC542PGE1-50 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Dig Signal Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320LC542PGE2-40 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Dig Signal Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*