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M38043F5HKP Datasheet(PDF) 29 Page - Renesas Technology Corp

No. de pieza M38043F5HKP
Descripción Electrónicos  8-BIT CISC SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES
PDF  387 Pages
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Fabricante Electrónico  RENESAS [Renesas Technology Corp]
Página de inicio  http://www.renesas.com
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M38043F5HKP Datasheet(HTML) 29 Page - Renesas Technology Corp

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1-11
REJ09B0212-0100Z
Rev.1.00
Jan 14, 2005
3804 Group (Spec.H)
HARDWARE
FUNCTIONAL DESCRIPTION
Fig. 8 Structure of CPU mode register
[CPU Mode Register (CPUM)] 003B16
The CPU mode register contains the stack page selection bit, etc.
The CPU mode register is allocated at address 003B16.
CPU mode register
(CPUM : address 003B16)
b7
b0
Fix this bit to “1”.
Stack page selection bit
0 : 0 page
1 : 1 page
Processor mode bits
b1 b0
0
0 : Single-chip mode
0
1 :
1
0 :
Not available
1
1 :
Port XC switch bit
0 : I/O port function (stop oscillating)
1 : XCIN–XCOUT oscillating function
Main clock (XIN–XOUT) stop bit
0 : Oscillating
1 : Stopped
Main clock division ratio selection bits
b7 b6
0
0 :
φ = f(XIN)/2 (high-speed mode)
0
1 :
φ = f(XIN)/8 (middle-speed mode)
1
0 :
φ = f(XCIN)/2 (low-speed mode)
1
1 : Not available
1



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