AM1705 Sitara 處理器

數(shù)據(jù)： AM1705 ARM? Microprocessor 數(shù)據(jù)表

描述

AM1705是一款基于ARM926EJ-S的低功耗ARM微處理器。

該設(shè)備可用于原始設(shè)備制造商（OEM））和原始設(shè)計(jì)制造商（ODM）通過(guò)完全集成的混合處理器解決方案的最大靈活性，快速將具有強(qiáng)大操作系統(tǒng)，豐富用戶界面和高處理器性能的設(shè)備推向市場(chǎng)。

ARM926EJ -S是一個(gè)32位RISC處理器內(nèi)核，可執(zhí)行32位或16位指令并處理32位，16位或8位數(shù)據(jù)。核心使用流水線操作，以便處理器和內(nèi)存系統(tǒng)的所有部分可以連續(xù)運(yùn)行。

ARM內(nèi)核具有協(xié)處理器15（CP15），保護(hù)模塊以及數(shù)據(jù)和程序存儲(chǔ)器管理單元（MMU）表后備緩沖區(qū)。 ARM內(nèi)核具有單獨(dú)的16KB指令和16 KB數(shù)據(jù)高速緩存。兩個(gè)內(nèi)存塊都與虛擬索引虛擬標(biāo)記（VIVT）進(jìn)行4向關(guān)聯(lián)。 ARM內(nèi)核還具有8KB的RAM（向量表）和64KB的ROM。

外設(shè)集包括：具有管理數(shù)據(jù)輸入/輸出（MDIO）模塊的10/100 Mbps以太網(wǎng)MAC（EMAC） ;兩個(gè)I ² C總線接口;三個(gè)帶有串行器和FIFO緩沖器的多通道音頻串行端口（McASP）;兩個(gè)64位通用定時(shí)器，每個(gè)都可配置（一個(gè)可配置為看門狗）;多達(dá)8個(gè)16引腳的通用輸入/輸出（GPIO），具有可編程中斷/事件生成模式，與其他外設(shè)復(fù)用;三個(gè)UART接口（一個(gè)具有 RTS 和 CTS ）;三個(gè)增強(qiáng)型高分辨率脈沖寬度調(diào)制器（eHRPWM）外設(shè);三個(gè)32位增強(qiáng)型捕獲（eCAP）模塊外設(shè)，可配置為3個(gè)捕獲輸入或3個(gè)輔助脈沖寬度調(diào)制器（APWM）輸出;兩個(gè)32位增強(qiáng)型正交編碼脈沖（eQEP）外設(shè);和2個(gè)外部存儲(chǔ)器接口：用于較慢存儲(chǔ)器或外設(shè)的異步和SDRAM外部存儲(chǔ)器接口（EMIFA），以及用于SDRAM的高速存儲(chǔ)器接口（EMIFB）。

以太網(wǎng)媒體訪問控制器（EMAC）提供設(shè)備和網(wǎng)絡(luò)之間的有效接口。 EMAC支持10Base-T和100Base-TX，或半雙工或全雙工模式下的10 Mbps和100 Mbps。此外，MDIO接口可用于PHY配置。

I ² C，SPI和USB2.0端口允許設(shè)備輕松控制外圍設(shè)備和/或與主機(jī)處理器通信。

豐富的外設(shè)集提供了控制外部外圍設(shè)備和與外部處理器通信的能力。有關(guān)每個(gè)外設(shè)的詳細(xì)信息，請(qǐng)參閱本文檔后面的相關(guān)章節(jié)以及相關(guān)的外設(shè)參考指南。

該器件具有一整套用于ARM處理器的開發(fā)工具。這些工具包括C編譯器和Windows®調(diào)試器接口，用于查看源代碼執(zhí)行情況。

特性

375- and 456-MHz ARM926EJ-S™ RISC Core
- 32-Bit and 16-Bit (Thumb®) Instructions
- Single-Cycle MAC
- ARM Jazelle® Technology
- Embedded ICE-RT™ for Real-Time Debug
ARM9 Memory Architecture
- 16KB of Instruction Cache
- 16KB of Data Cache
- 8KB of RAM (Vector Table)
- 64KB of ROM
Enhanced Direct Memory Access Controller 3 (EDMA3):
- 2 Transfer Controllers
- 32 Independent DMA Channels
- 8 Quick DMA Channels
- Programmable Transfer Burst Size
128KB of RAM Memory
3.3-V LVCMOS I/Os (Except for USB Interface)
Two External Memory Interfaces:
- EMIFA
  - NOR (8-Bit-Wide Data)
  - NAND (8-Bit-Wide Data)
- EMIFB
  - 16-Bit SDRAM With 128-MB Address Space
Three Configurable 16550-Type UART Modules:
- UART0 With Modem Control Signals
- 16-Byte FIFO
- 16x or 13x Oversampling Option
- Autoflow Control Signals (CTS, RTS) on UART0 Only
Two Serial Peripheral Interfaces (SPIs) Each With One Chip Select
Programmable Real-Time Unit Subsystem (PRUSS)
- Two Independent Programmable Real-Time Unit (PRU) Cores
  - 32-Bit Load-Store RISC Architecture
  - 4KB of Instruction RAM per Core
  - 512 Bytes of Data RAM per Core
  - PRUSS can be Disabled Through Software to Save Power
- Standard Power-Management Mechanism
  - Clock Gating
  - Entire Subsystem Under a Single PSC Clock Gating Domain
- Dedicated Interrupt Controller
- Dedicated Switched Central Resource
Multimedia Card (MMC)/Secure Digital (SD) Card Interface With Secure Data I/O (SDIO)
Two Master and Slave Inter-Integrated Circuit (I²C Bus™)
USB 2.0 OTG Port With Integrated PHY (USB0)
- USB 2.0 Full-Speed Client
- USB 2.0 Full- and Low-Speed Host
- End Point 0 (Control)
- End Points 1, 2, 3, and 4 (Control, Bulk, Interrupt, or ISOC) RX and TX
Two Multichannel Audio Serial Ports (McASPs):
- Six Clock Zones and 28 Serial Data Pins
- Supports TDM, I2S, and Similar Formats
- FIFO Buffers for Transmit and Receive
10/100 Mbps Ethernet MAC (EMAC):
- IEEE 802.3 Compliant (3.3-V I/O Only)
- RMII Media-Independent Interface
- Management Data I/O (MDIO) Module
One 64-Bit General-Purpose Timer (Configurable as Two 32-Bit Timers)
One 64-Bit General-Purpose Watchdog Timer (Configurable as Two 32-Bit General-Purpose Timers)
Three Enhanced Pulse Width Modulators (eHRPWMs):
- Dedicated 16-Bit Time-Base Counter With Period and Frequency Control
- 6 Single-Edge, 6 Dual-Edge Symmetric, or 3 Dual-Edge Asymmetric Outputs
- Dead-Band Generation
- PWM Chopping by High-Frequency Carrier
- Trip Zone Input
Three 32-Bit Enhanced Capture (eCAP) Modules:
- Configurable as 3 Capture Inputs or 3 Auxiliary Pulse Width Modulator (APWM) Outputs
- Single-Shot Capture of up to Four Event Timestamps
Two 32-Bit Enhanced Quadrature Encoder Pulse (eQEP) Modules
176-Pin PowerPAD™ Plastic Quad Flat Pack [PTP suffix], 0.5-mm Pin Pitch
Commercial, Industrial, or Extended Temperature

All trademarks are the property of their respective owners.

參數(shù) 與其它產(chǎn)品相比 AM1x


Arm MHz (Max.)
DRAM
Display
USB
EMAC
SPI
I2C
UART
Operating Temperature Range (C)
Approx. Price (US$)

AM1705	AM1707
375 456	375 456
SDRAM	SDRAM
	1 LCD
	1
10/100	10/100
2	2
2	2
3	3
-40 to 105 -40 to 90 0 to 90	-40 to 105 -40 to 90 0 to 90
7.28 \| 1ku	7.69 \| 1ku
無(wú)樣片	無(wú)樣片