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M32171F4VFP Datasheet(Fiches technique) 9 Page - Mitsubishi Electric Semiconductor

Numéro de pièce M32171F4VFP
Description  SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER    
Télécharger  37 Pages
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Fabricant  MITSUBISHI [Mitsubishi Electric Semiconductor]
Site Internet  http://www.mitsubishichips.com
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Mitsubishi Microcomputers
9
SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER
2001-5-14 Rev.1.0
32171 Group
Table 5 Description of Pin Function (2/4)
Type
Pin type
Description
Input/Output Function
Bus
___
CS0,
Chip
Output
Chip select signals for external devices.
control
CS1
select
__
RD
Read
Output
This signal is output when reading external devices.
___
_______
BHW/ BHE
Byte high
Output
Indicates the byte positions to which valid are transferred when writing to
write
________
_______
________ _______
external devices.BHW/ BHE and BLW/ BLE correspond to the upper address
___ _______
BLW/ BLE
Byte low
Output
side(D0-D7 effective) and the lower address side(D8-D15 effective),respectivel.
write
____
WAIT
Wait
Input
_________
If WAIT input is low when the M32R accesses external devices, the wait cycle
extended.
_____
HREQ
Hold
Input
This pin is used by an external device to request control of the external bus.
request
__________
The M32R goes to a hold state when HREQ input is pulled low.
____
HACK
Hold
Output
This signal indicates to the external device that the M32R has entered a hold
acknowledge
state and relinquished control of the external bus.
Multijunction TIN0, TIN3
Timer input
Input
Input pins for multijunction timer.
timer
TIN16-TIN23
TO0
Timer output
Output
Output pins for multijunction timer.
-TO20
TCLK0
Timer clock
Input
Clock input pins for multijunction timer.
-TCLK3
A-D
AVCC0,
Analog power –
AVCC0 is the power supply for the A-D0 converters.Connect AVCC0
converter
upply
to the power supply (5V or 3.3V).
AVSS0
Analog ground–
AVSS0 is the analog groundfor the A-D0 converters. Connect AVCC0 to ground
AD0IN0
Analog input
Input
16-channel analog input pin for A-D0 converter.
-AD0IN15
VREF0
Reference
Input
VREF0 is the reference voltage input pin (5V or 3.3V) for the A-D0 converters.
voltage input
Interrupt
___
SBI
System
Input
System break interrupt(SBI) input pin of the interrupt controller.
controller
break
interrupt




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