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M32000D3FP Datasheet(Fiches technique) 8 Page - Mitsubishi Electric Semiconductor

Numéro de pièce M32000D3FP
Description  SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER  
Télécharger  45 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
M32000D3FP
8
type
pin name
name
I/O
function
bus
__
DC*
data complete
I/O
When the M32000D3FP drives an external bus cycle, it
control
__
automatically inserts wait cycles until DC is input by the slave
(cont.)
device in the system bus.
When the M32000D3FP is in the hold state and the internal
DRAM is accessed from an external bus master, the M32000D3FP
__
outputs DC to notify to the external bus master that the bus
cycle to the internal DRAM has been completed.
______
HREQ
hold
input
______
Bus right request input pin of the system bus. When HREQ is an
"L" level, the M32000D3FP switches to the hold state.
_____
HACK
hold
output
Indicates that the M32000D3FP has switched to the hold state
acknowledge
and releases the bus right of the system bus to the requestor.
__
CS
chip
input
Signal input to the M32000D3FP when it is in the hold state to
select
request access to the internal DRAM from an external bus master.
__
When an "L" level is input to CS, the M32000D3FP accesses the
internal DRAM at the address input via the address pins.
interrupt
___
SBI
system
input
___
System break interrupt input pin. The SBI is not masked by the
controller
break
IE bit in the PSW register. It is also used to return from CPU
interrupt
sleep mode and to request the start of operation in slave mode.
___
INT
external
input
External interrupt request input pin. It is also used to return from
interrupt
CPU sleep mode and to request the start of operation the slave
mode.
programm-
PP0, PP1
port
I/O
Two programmable I/O ports.
able I/O port
__
__
* The DC pin becomes an output pin when the CS signal is input to the M32000D3FP.
PIN DESCRIPTION (3/3)
(Hi-z)




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