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M32000D4BFP-80 Datasheet(Fiches technique) 29 Page - Mitsubishi Electric Semiconductor

Numéro de pièce M32000D4BFP-80
Description  SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER   
Télécharger  44 Pages
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Fabricant  MITSUBISHI [Mitsubishi Electric Semiconductor]
Site Internet  http://www.mitsubishichips.com
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SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
M32000D4BFP-80
29
Clock generating circuit
The M32000D4BFP-80 has a clock multiplier circuit and operates at
four times the input frequency. The internal operation frequency be-
comes 80 MHz when a 20 MHz clock is input to CLKIN. A capacitor
(C) should be connected to the PLLCAP pin, and the clock is input to
the CLKIN pin. The PLLVCC and PLLVSS pins should be connected
to the power source or the ground, respectively.
ADDRESSING MODE
M32R family supports the following addressing modes.
< register direct >
The general-purpose register or the control register to be processed
is specified.
< register indirect >
The contents of the register specify the address in memory to be
accessed. This mode can be used by all load/store instructions.
< register relative indirect >
(The contents of the register) + (16-bit immediate value which is sign-
extended to 32 bits) specify the address in memory to be accessed.
< register indirect and register update >
• 4 is added to the register contents
(the contents of the register before update specify
the address in memory to be accessed) [LD instruction]
• 4 is added to the register contents
(the contents of the register after update specify
the address in memory to be accessed) [ST instruction]
• 4 is subtracted from the register contents
(the contents of the register after update specify
the address in memory to be accessed) [ST instruction]
< immediate >
The 4-, 5-, 8-, 16- or 24-bit immediate value.
< PC relative >
(The contents of PC) + (8, 16, or 24-bit displacement which is sign-
extended to 32 bits and 2 bits left-shifted) specify the address in
memory to be accessed.
Fig. 32 Oscillation circuit
M32000D4BFP-80
18 (CLKIN)
16 (PLLCAP)
15 (PLLVSS)
C
14 (PLLVCC)
VCC
PLL clock
generating
circuit
clock input
recommended values in circuit
C: 1000 pF




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