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您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370469 > HD6437020VXI (Hitachi,Ltd.) SuperH⑩ RISC engine PDF資料下載

型號(hào)：	HD6437020VXI
廠商：	Hitachi,Ltd.
英文描述：	SuperH⑩ RISC engine
中文描述：	⑩的SuperH RISC引擎
文件頁(yè)數(shù)：	172/507頁(yè)
文件大?。?/td>	1311K
代理商：	HD6437020VXI

Bus Cycle States when Accessing Address Spaces

CPU Read Cycle, DMAC Dual Mode Read Cycle, DMAC Single

Mode Memory Read/Write Cycle

Address Space

Corresponding Bits in WCR1

and WCR2 = 0

1 state fixed;

signal ignored

Corresponding Bits in WCR1

and WCR2 = 1

2 states + wait states from

1 state + long wait state*

External memory (areas

External memory (Areas

0, 2, 6; long wait avail-

1 state + long wait state*,

signal ignored

DRAM space (area 1)

Column address cycle: 1 state,

signal ignored (short pitch)

Column address cycle: 2 states +

wait states from

(long pitch)

Multiplexed I/O space

4 states + wait states from

On-chip peripheral mod-

ule space (area 5)

3 states fixed,

signal ignored

On-chip ROM (area 0)

1 state fixed,

signal ignored

1 state fixed,

signal ignored

On-chip RAM (area 7)

CPU Write Cycle, DMAC Dual Mode Memory Write Cycle

Address Space

WW1 of WCR1 = 0

2 states + wait states from

WW1 of WCR1 =1

External memory (areas

External memory (Areas

0, 2, 6; long wait

1 state + long wait state*

wait states from

DRAM space (area 1)

Column address cycle: 1 state,

signal ignored (short pitch)

Column address cycle: 2 states +

wait states from

(long pitch)

Multiplexed I/O space

4 states + wait states from

On-chip peripheral

module space (area 5)

3 states fixed,

signal ignored

On-chip ROM (area 0)

1 state fixed,

signal ignored

1 state fixed,

signal ignored

On-chip RAM (area 7)

The number of long wait states (1 to 4) is set in WCR3.

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HD6433936R	Hardware Manual

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HD6437021C02TE	制造商:Renesas Electronics Corporation 功能描述:
HD6437021CO2TE	制造商:Renesas Electronics Corporation 功能描述:
HD6437021SC02TEV	制造商:Renesas Electronics Corporation 功能描述:
HD6437021SX20	制造商:Renesas Electronics Corporation 功能描述:
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