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型號(hào)：	M37702E2BFS
元件分類：	微控制器/微處理器
英文描述：	16-BIT, UVPROM, 25 MHz, MICROCONTROLLER, CQCC80
封裝：	WINDOWED, GLASS SEALED, CERAMIC, QFN-80
文件頁(yè)數(shù)：	193/521頁(yè)
文件大小：	6949K
代理商：	M37702E2BFS

CONNECTION WITH EXTERNAL DEVICES

7702/7703 Group User’s Manual

12.1 Signals required for accessing external devices

This signal has the same period as

In the memory expansion mode, this signal is output externally by setting the clock

φ1 output select

bit (bit 7 at address 5E16) to “1.” Figure 12.1.3 shows the output start timing of clock

In the microprocessor mode, this signal is always output externally.

Note: Even in the single-chip mode, the clock

φ1 can be output externally. This signal is output

externally by setting the clock

φ1 output select bit to “1” just as in the memory expansion

Fig. 12.1.3 Output start timing of clock

Writing “1” to clock

output select bit

Notes 1: The 1st cycle of clock

may be shortened; indicated by

2: This applies when writing to clock

output select bit while

P42 pin is outputting “L” level.

Processor mode bits

Software reset bit

Interrupt priority detection time

output select bit

(Note 2)

0 0 : Single-chip mode

0 1 : Memory expansion mode

1 0 : Microprocessor mode

1 1 : Not selected

The microcomputer is reset by

writing “1” to this bit. The value is

“0” at reading.

0 0 : 7 cycles of

0 1 : 4 cycles of

1 0 : 2 cycles of

1 1 : Not selected

output disabled

(P42 functions as a programmable

output enabled

(P42 functions as a clock

Processor mode register (Address 5E16)

(Note 1)

Notes 1: While supplying the Vcc level to the CNVss pin, this bit becomes “1”

after a reset. (Fixed to “1.”)

2: This bit is ignored in the microprocessor mode. (It may be either “0” or “1.”)

Fix this bit to “0.”

0 : Software Wait is inserted when

accessing external area.

1 : No software Wait is inserted

when accessing external area.

: Bits 0 to 6 are not used for setting of clock

Fig. 12.1.4 Structure of processor mode register

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相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
M37702E2LGP	制造商:Mitsubishi Electric 功能描述:
M37702E4BFS	制造商:Renesas Electronics Corporation 功能描述:EPROM MCU/8BIT CMOS EMULATION CHIP - Bulk
M37702E4LGP	制造商:Renesas Electronics Corporation 功能描述:
M37702E6BFP	制造商:Renesas Electronics Corporation 功能描述:
M37702E6BFS	制造商:Renesas Electronics Corporation 功能描述:EPROM MCU/8BIT CMOS EMULATION CHIP - Bulk

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