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參數(shù)資料
| 型號： | EB402 |
| 英文描述： | EB402 Evaluation Board user＇s guide 7/01 |
| 中文描述： | EB402評估板用戶指南7月1日 |
| 文件頁數(shù)： | 39/84頁 |
| 文件大?。?/td> | 1014K |
| 代理商： | EB402 |
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3-22
Hardware Overview
3.4.2.1 SRAM
The on-board SRAM is an IDT 71V416S10Y, a 256 kword x 16-bit
asynchronous SRAM with a 10 ns access time. The 71V416S10Y can
be congured as instruction memory or data memory. To congure the
SRAM as instruction memory that is enabled by ICS1N, install JP13. To
congure the SRAM as instruction memory that is enabled by ICS0N,
install a jumper between pins 2–3 of JP18. To congure the SRAM as
bootable instruction memory, install JP3 (IBOOT-OPEN), and install a
jumper between pins 2–3 of JP18. To congure the SRAM as data
memory that is enabled by DCS1N, install JP16.
3.4.2.2 SBSRAM
The SBSRAM is a Micron Semiconductor Products, Inc.,
MT58L128L32PT, which is a 128 kword x 32- bit pipe-lined single-cycle
deselect (SCD) memory. The SBSRAM can be used for very high speed
burst transfer data memory. DCS0N enables data memory when jumper
JP14 is installed.
3.4.2.3 Flash Memory
The ash memory is a Micron Semiconductor Products, Inc.,
MT28F800B3WG-10T, a 512 kword by 16-bit ash memory with a 100 ns
access time. The MT28F800B3WG-10T is in-circuit erasable and
programmable.
The ash memory can be used as instruction memory or data memory.
To congure the ash memory as instruction memory that is enabled by
ICS0N, install a jumper between pins 1–2 of JP18. To congure the ash
memory as data memory that is enabled by DCS2N, install JP17.
The LSI402ZX can boot from the ash memory. To boot from ash
memory, install the IBOOT-OPEN jumper, JP3, and install a jumper
between pins 1–2 of JP18.
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