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參數(shù)資料
| 型號(hào)： | SPCA514A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | MOSFET; Transistor Polarity:N Channel; Drain Source Voltage, Vds:60V; Continuous Drain Current, Id:75A; On-Resistance, Rds(on):0.008ohm; Rds(on) Test Voltage, Vgs:10V; Package/Case:TO-263; Leaded Process Compatible:No RoHS Compliant: No |
| 中文描述： | 數(shù)字音頻USB控制器 |
| 文件頁數(shù)： | 2/14頁 |
| 文件大?。?/td> | 111K |
| 代理商： | SPCA514A |
SPCA514A
3. Function description
3.1. block diagram
8051
CPU
FIFO Controller
USB
Controller
Flash Memory
(NAND Type)
A Buffer
(512x8)
B Buffer
(512x8)
CPU Data Bus
Status Signals
Control Signals
C
C
Data Bus
Data Bus
Status Signals
Control Signals
D
D
D
D
C
A
c
USB and Flash meory
Controller with 8051
SPI
Controller
Data Bus
Data Bus
Status Signals
Control Signals
xdp
xdm
xugpio[7:0]
xsgpio[7:0]
FM
Controller
xngpio[7:0]
x
x
x
x
x
x
xegpio[7:0]
xtalout
xtalin
xprstnn
VCC (8)
used pins : 84
power/ground pins : 16
100-pin LQFP
GND (8)
751
Interface
xmgpio[7:0]
Data Bus
Data Bus
Status Signals
Control Signals
3.2. Embedded micro-controller
The SPCA514A has integrated an 8032-compatible micro-controller, a serial
communication port and a build-in 1K SRAM. To simplify the firmware development, the
users may disable the internal micro-controller and connect the SPCA514A to an external
micro-controller. The following diagrams show how to connect the SPCA514A to other
components when using internal micro-controller and external micro-controller.
The micro-controller is similar to DS80C320(Dallas Semiconductor) in terms of hardware
features and instruction cycle timing. However, there are some important differences
between the micro-controller and the DS80C320.
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