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7733 bảng dữ liệu(PDF) 781 Page - Renesas Technology Corp

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Giải thích chi tiết về linh kiện  16-BIT SINGLE-CHIP MICROCOMPUTER
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nhà sản xuất  RENESAS [Renesas Technology Corp]
Trang chủ  http://www.renesas.com
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EXTERNAL ROM VERSION
7735 Group User’s Manual
20–11
20.6 Processor modes
20.6 Processor modes
The M37735S4BFP can operate only in the microprocessor mode. For the processor mode, refer to the
description of the microprocessor mode in section “2.5 Processor modes” in part 1.
Also, be sure to set as follows:
• Connect pin CNVss to Vcc.
• Fix the processor mode bit to “102.“
Figure 20.6.1 shows the structure of the processor mode register 0.
Fig. 20.6.1 Structure of processor mode register 0
Bit
Bit name
Functions
At reset
RW
0
1
2
3
4
5
6
7
Processor mode bits
Wait bit
Software reset bit
Interrupt priority detection
time selection bits
Must be fixed to “0.”
This bit is ignored. (it may be “0” or “1.”)
0
0
0
0
0
0
0 0: Do not select.
0 1: Do not select.
1 0: Microprocessor mode
1 1: Do not select.
Microcomputer is reset by
setting this bit to “1.”
This bit is “0” at reading.
0 0: 7 cycles of
0 1: 4 cycles of
1 0: 2 cycles of
1 1: Do not select.
0
0
b1 b0
b5 b4
Processor mode register 0 (address 5E 16)
represents that bits 2 to 7 are not used for setting the processor mode.
b1
b0
b2
b3
b4
b5
b6
b7
0
RW
RW
RW
WO
RW
RW
RW
RW
0: Software wait is inserted when
accessing external area.
1: No software wait is inserted when
accessing external area.



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