M32000D3FP Datasheet, PDF (6/45 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS
M32000D3FP
SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER
PIN DESCRIPTION (1/3)
type
power
source
clock
pin name
VCC
VSS
CLKIN
name
power source
ground
clock input
I/O
–
–
input
system
control
PLLCAP
PLLVCC
PLLVSS
____
RST
_
M/S
C connection
for PLL
power source
for PLL
ground
for PLL
reset
master/slave
–
–
–
input
input
address
bus
______
WKUP
_____
STBY
A8 to A30
wakeup
standby
address bus
input
output
I/O
(Hi-z)*
data bus
D0 to D15
data bus
I/O
(Hi-z)*
* (Hi-z): This pin goes to high-impedance in the hold state.
function
All power source pins should be connected to VCC.
All ground pins should be connected to VSS.
Clock input pin. The M32000D3FP has an internal PLL multiplier
circuit, and an input clock which is 1/4 of the internal operating
frequency (when the internal operating frequency is 66.6 MHz,
the CLKIN input is 16.65 MHz).
Connects a capacitor for the internal PLL.
Power source for the internal PLL.
Ground for the internal PLL.
Internally resets the M32000D3FP. It is also used to return from
standby mode and CPU sleep mode.
Sets the M32000D3FP default operation to either system bus
master (M/S = "H") or bus slave (M/S = "L").
When the M32000D3FP is set to bus slave, it does not carry out
a reset vector ent_{_}ry fetch after a reset.
The setting of M/S cannot be changed during operation.
Keep at either an "H" or an "L" level.
Input pin to request return fr_o_m__s_tandby mode.
This is only accepted when STBY is "L" level.
It generates the wakeup interrupt.
Indicates that the M32000D3FP has switched to standby mode.
An "L" level is output while the device is in standby mode.
The M32000D3FP has a 24-bit address (A8 to A31) bus for a 16 MB
address space. A31 is not output. During the write cyc_{_}l_{_}e_{_}, _{_}the
_^v_^a_^li_^{d byte positions on the 16-bit data bus are output as BCH or}
BCL. During the read cycle, the 16-bit data bus is read, however,
only data in the valid byte positions is transferred to the
M32000D3FP.
Address bus pins are bidirectional. When accessing the internal
DRAM from an external bus master while the M32000D3FP is in
the hold state, input the address from the system bus side.
16-bit data bus for connecting to external devices.
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