参数资料
型号: EP7311-IV
厂商: Cirrus Logic Inc
文件页数: 41/42页
文件大小: 0K
描述: IC ARM720T MCU 74MHZ 208-LQFP
标准包装: 36
系列: EP7
核心处理器: ARM7
芯体尺寸: 32-位
速度: 74MHz
连通性: 编解码器,EBI/EMI,IrDA,键盘,多媒体编解码器,SPI/Microwire1,UART/USART
外围设备: LCD,LED,MaverickKey,PWM
输入/输出数: 27
程序存储器类型: ROMless
RAM 容量: 56K x 8
电压 - 电源 (Vcc/Vdd): 2.3 V ~ 2.7 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 208-LQFP
包装: 托盘
其它名称: 598-1230
8
Copyright Cirrus Logic, Inc. 2011
(All Rights Reserved)
DS506F2
EP7311
High-Performance, Low-Power System on Chip
CODEC Interface
The EP7311 includes an interface to telephony-type CODECs
for easy integration into voice-over-IP and other voice
communications
systems.
The
CODEC
interface
is
multiplexed to the same pins as the MCP and SSI2.
Note:
See Table R on page 11 for information on pin
multiplexes.
SSI2 Interface
An
additional
SPI/Microwire1-compatible
interface
is
available for both master and slave mode communications. The
SSI2 unit shares the same pins as the MCP and CODEC
interfaces through a multiplexer.
Synchronous clock speeds of up to 512 kHz
Separate 16 entry TX and RX half-word wide FIFOs
Half empty/full interrupts for FIFOs
Separate RX and TX frame sync signals for asymmetric
traffic
Note:
See Table R on page 11 for information on pin
multiplexes.
Synchronous Serial Interface
ADC (SSI) Interface: Master mode only; SPI and
Microwire1-compatible (128 kbps operation)
Selectable serial clock polarity
LCD Controller
A DMA address generator is provided that fetches video
display data for the LCD controller from memory. The display
frame buffer start address is programmable, allowing the LCD
frame buffer to be in SDRAM, internal SRAM or external
SRAM.
Interfaces directly to a single-scan panel monochrome STN
LCD
Interfaces to a single-scan panel color STN LCD with
minimal external glue logic
Panel width size is programmable from 32 to 1024 pixels in
16-pixel increments
Video frame buffer size programmable up to
128 KB
Bits per pixel of 1, 2, or 4 bits
Pin Mnemonic
I/O
Pin Description
PCMCLK
O
Serial bit clock
PCMOUT
O
Serial data out
PCMIN
I
Serial data in
PCMSYNC
O
Frame sync
Table F. CODEC Interface Pin Assignments
Pin Mnemonic
I/O
Pin Description
SSICLK
I/O
Serial bit clock
SSITXDA
O
Serial data out
SSIRXDA
I
Serial data in
SSITXFR
I/O
Transmit frame sync
SSIRXFR
I/O
Receive frame sync
Table G. SSI2 Interface Pin Assignments
Pin Mnemonic
I/O
Pin Description
ADCLK
O
SSI1 ADC serial clock
ADCIN
I
SSI1 ADC serial input
ADCOUT
O
SSI1 ADC serial output
nADCCS
O
SSI1 ADC chip select
SMPCLK
O
SSI1 ADC sample clock
Table H. Serial Interface Pin Assignments
Pin Mnemonic
I/O
Pin Description
CL1
O
LCD line clock
CL2
O
LCD pixel clock out
DD[3:0]
O
LCD serial display data bus
FRM
O
LCD frame synchronization pulse
M
O
LCD AC bias drive
Table I. LCD Interface Pin Assignments
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