Copyright Cirrus Logic, Inc. 2011 (All Rights Reserved) 7 EP7311 High-Performance, Low-Power Sy" />
參數(shù)資料
型號(hào): EP7311-CB
廠商: Cirrus Logic Inc
文件頁(yè)數(shù): 40/42頁(yè)
文件大?。?/td> 0K
描述: IC ARM720T MCU 74MHZ 256-PBGA
標(biāo)準(zhǔn)包裝: 90
系列: EP7
核心處理器: ARM7
芯體尺寸: 32-位
速度: 74MHz
連通性: 編解碼器,EBI/EMI,IrDA,鍵盤(pán),多媒體編解碼器,SPI/Microwire1,UART/USART
外圍設(shè)備: LCD,LED,MaverickKey,PWM
輸入/輸出數(shù): 27
程序存儲(chǔ)器類(lèi)型: ROMless
RAM 容量: 56K x 8
電壓 - 電源 (Vcc/Vdd): 2.3 V ~ 2.7 V
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 256-BGA
包裝: 托盤(pán)
其它名稱(chēng): 598-1220
DS506F2
Copyright Cirrus Logic, Inc. 2011
(All Rights Reserved)
7
EP7311
High-Performance, Low-Power System on Chip
The second is the programmable 16- or 32-bit-wide SDRAM
interface that allows direct connection of up to two banks of
SDRAM, totaling 512 Mb. To assure the lowest possible power
consumption, the EP7311 supports self-refresh SDRAMs,
which are placed in a low-power state by the device when it
enters the low-power Standby State.
Note:
1. Pins A[27:13] map to DRA[0:14] respectively.
(i.e. A[27}/DRA[0}, A[26}/DRA[1], etc.) This is to
balance the load for large memory systems.
2. Pins are multiplexed. See Table S on page 11 for
more information.
Digital Audio Capability
The EP7311 uses its powerful 32-bit RISC processing engine
to implement audio decompression algorithms in software. The
nature of the on-board RISC processor, and the availability of
efficient C-compilers and other software development tools,
ensures that a wide range of audio decompression algorithms
can easily be ported to and run on the EP7311
Universal Asynchronous
Receiver/Transmitters (UARTs)
The EP7311 includes two 16550-type UARTs for RS-232
serial communications, both of which have two 16-byte FIFOs
for receiving and transmitting data. The UARTs support bit
rates up to 115.2 kbps. An IrDA SIR protocol encoder/decoder
can be optionally switched into the RX/TX signals to/from
UART 1 to enable these signals to drive an infrared
communication interface directly.
Multimedia Codec Port (MCP)
The Multimedia Codec Port provides access to an audio codec,
a telecom codec, a touchscreen interface, four general purpose
analog-to-digital converter inputs, and ten programmable
digital I/O lines.
Note:
See Table R on page 11 for information on pin
multiplexes.
Pin Mnemonic
I/O
Pin Description
SDCLK
O
SDRAM clock output
SDCKE
O
SDRAM clock enable output
nSDCS[1:0]
O
SDRAM chip select out
WRITE/nSDRAS
(Note 2)
O
SDRAM RAS signal output
nMOE/nSDCAS
(Note 2)
O
SDRAM CAS control signal
nMWE/nSDWE
(Note 2)
O
SDRAM write enable control
signal
A[27:15]/DRA[0:12]
(Note 1)
O
SDRAM address
A[14:13]/DRA[12:14]
O
SDRAM internal bank select
PD[7:6]/SDQM[1:0]
(Note 2)
I/O
SDRAM byte lane mask
SDQM[3:2]
O
SDRAM byte lane mask
D[31:0]
I/O
Data I/O
Table C. SDRAM Interface Pin Assignments
Pin Mnemonic
I/O
Pin Description
TXD[1]
O
UART 1 transmit
RXD[1]
I
UART 1 receive
CTS
I
UART 1 clear to send
DCD
I
UART 1 data carrier detect
DSR
I
UART 1 data set ready
TXD[2]
O
UART 2 transmit
RXD[2]
I
UART 2 receive
LEDDRV
O
Infrared LED drive output
PHDIN
I
Photo diode input
Table D. Universal Asynchronous Receiver/Transmitters Pin
Assignments
Pin Mnemonic
I/O
Pin Description
SIBCLK
O
Serial bit clock
SIBDOUT
O
Serial data out
SIBDIN
I
Serial data in
SIBSYNC
O
Sample clock
Table E. MCP Interface Pin Assignments
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參數(shù)描述
EP7311-CB-90 功能描述:IC ARM720T MCU 90MHZ 256-PBGA RoHS:否 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:EP7 標(biāo)準(zhǔn)包裝:1,500 系列:AVR® ATtiny 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C,LIN,SPI,UART/USART,USI 外圍設(shè)備:欠壓檢測(cè)/復(fù)位,POR,PWM,溫度傳感器,WDT 輸入/輸出數(shù):16 程序存儲(chǔ)器容量:8KB(4K x 16) 程序存儲(chǔ)器類(lèi)型:閃存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 11x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:20-SOIC(0.295",7.50mm 寬) 包裝:帶卷 (TR)
EP7311-CB-C 制造商:CIRRUS 制造商全稱(chēng):Cirrus Logic 功能描述:HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE
EP7311-CR 制造商:Cirrus Logic 功能描述:LOW-PWR PROCESSOR 208LQFP - Tape and Reel
EP7311-CR-90 功能描述:音頻片上系統(tǒng) - SoC Hi Perf. Low PWR SOC 90MHz RoHS:否 制造商:Cirrus Logic 處理器系列:ARM7 核心:ARM 數(shù)據(jù)總線寬度:32 bit 安裝風(fēng)格: 封裝 / 箱體:
EP7311-CR-C 制造商:CIRRUS 制造商全稱(chēng):Cirrus Logic 功能描述:HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE