參數(shù)資料
型號(hào)： (Z)PSD813F2
英文描述： Flash In System Programmable Mirocomputer Peripherals(閃速，在系統(tǒng)可編程微控制器外圍器件，1M位和256K位閃速存儲(chǔ)器，16K位SRAM)
中文描述： Flash在系統(tǒng)可編程Mirocomputer外設(shè)（閃速，在系統(tǒng)可編程微控制器外圍器件，100萬(wàn)位和256K位閃速存儲(chǔ)器，16K的位的SRAM）
文件頁(yè)數(shù)： 4/32頁(yè)
文件大?。?/td> 297K
代理商： (Z)PSD813F2
PSD813FH - 80C31 Design Example …Application Note
052
WSi Inc. Fremont CA 800-832-6974 www.wsipsd.com
4
Figure 2. PSD813FN Block Diagram
Description of Design Example
The goal of this design is to create a FLASH based embedded MCU core that supports ISP using
an MCM FLASH PSD. The method of this design provides an easy upgrade path to a monolithic
FLASH PSD. This upgrade path is achieved by creating a memory map structure that will
support concurrent memory accesses and also by reserving certain pins for JTAG use.
Concurrent memory accesses in the monolithic devices are needed during ISP to facilitate
writing to system FLASH memory while executing out of the alternate Non-Volatile memory.
Likewise, one can write to the alternate Non-Volatile memory while executing out of main FLASH
memory.
The schematic for this system is shown in Figure 3. The highlights of the system are listed below.
* 128 Kbytes of FLASH memory (In-System-Programmable)
- Firmware can be downloaded via RS-232
- Memory management during download is implemented
very simply by resources on the PSD device
47
50
49
48
8-10
20
19
18
17
14
13
12
11
15
38
1
16
26
39-46
30-37
FLASH MEMORY
512K x 8
A0 - A7
A8 - A13
A14
A15
A16
A17
A18
WR\
OE\
CE\
D0 - D7
Vcc
GND
PORT C
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PORT A
PORT B
PORT D
21-25
27-29
2-7
51-52
ADIO0-7
ADIO8-15
CNTL0
CNTL1
CNTL2
RESET\
PA0-PA7
PB0-PB7
PD0-PD2
ADIO0-7
ADIO8-15
CNTL0
CNTL1
CNTL2
RESET\
PSD612
PSD813FN - MCM
(NON-MUXED)
W RF\
RDF\
VSTBY
A14F
A16F
A17F
A18F
CSF\
A17F
A18F
WRF\
RDF\
CSF\
A14F
A16F
相關(guān)PDF資料
PDF描述
(Z)PSD813F3R Multi-Chip-Module to Monolithic Flash PSD(閃速，在系統(tǒng)可編程微控制器外圍器件，0M位閃速存儲(chǔ)器，無(wú)SRAM)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ZPSD813F2-12JI 制造商:WSI 功能描述: 制造商:WSI 功能描述:1M X 1 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQCC52
ZPSD813F2-12UI 制造商:WSI 功能描述: 制造商:WSI 功能描述:1M X 1 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQFP64
ZPSD813F2-15J 制造商:WSI 功能描述: 制造商:WSI 功能描述:1M X 1 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQCC52
ZPSD813F2-15U 制造商:WSI 功能描述: 制造商:WSI 功能描述:1M X 1 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQFP64
ZPSD813F2-15UI 制造商:WSI 功能描述: 制造商:WSI 功能描述:1M X 1 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQFP64
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