PIGGYBACK. M37409PSS Datasheet

M37409PSS PIGGYBACK. Datasheet pdf. Equivalent


Mitsubishi M37409PSS
MITSUBISHI MICROCOMPUTERS
M37409PSS
PIGGYBACK for M37409M2-XXXSP
DESCRIPTION
The M37409PSS is an EPROM mounted-type microcompu-
ter which utilizes CMOS technology, and is designed for
developing programs for single-chip 8-bit microcomputers
the M37409M2-XXXSP. It IS housed in a piggyback-type
52-pin shrink DIP.
There is a 28-pin socket on the package for the M5L2764K
or the M5L27128K EPROM.
The M37409PSS simplifies the development of programs for
the M37409M2-XXXSP, and is excellent for making proto-
types.
Therefore the M37409PSS can be used for the develop-
ment of programs for the M37409M2-XXXSP.
FEATURES
• Differences with the M37409M2-XXXSP are:
(1) ROMless, EPROM is attached externally.
(2) Suitable EPROM is the M5L2764K or the M5L27128K.
APPLICATION
Development of programs for the following systems;
• Office automation equipment
PIN CONFIGURATION (TOP VIEW)
address bus
28~pm socket for
EPROM
f~---------\-.~,~J-----------f
CD Vee
Vee @
® ct!V
Vee ®
Vee
1/0 port PO
i»@
Vee ®
Wnte control signal WR -- 9
Read control signal
Chip select
@@
®@
®@
@@
@@
@@
ClI@
@@
Data bus
®@
®@
®@
~i[D
@@
CQ1)@i
1/0 port P1
UART clock elK -- 20
CNVss
Reset Input RESET -- 22
Tlmmg output
Vss
@@
@ilJI
@@
IdlI@
@@
@@\
L__1 (jJ) Vss ____@_ -@--.11
M37409PSS
35 ++ CTS3 Transmit control Input
34 +- RxD3 Receive Input
33 ---+ T xD3 Transmit OlJtput
32 ++ CTS2 Transmit control Input
31 +- RX 0 2 Receive Input
30 - TxD2 Transmit output
29 ++ CTS, Transmit control mput
28 +- RXDI Receive Input
27 -- T XDl Transmit output
Outline 52S1 M
The symbol "0" indicates sockets for EPROM
• MITSUBISHI
;"ELECTRIC
3-397


M37409PSS Datasheet
Recommendation M37409PSS Datasheet
Part M37409PSS
Description PIGGYBACK
Feature M37409PSS; MITSUBISHI MICROCOMPUTERS M37409PSS PIGGYBACK for M37409M2-XXXSP DESCRIPTION The M37409PSS is an E.
Manufacture Mitsubishi
Datasheet
Download M37409PSS Datasheet




Mitsubishi M37409PSS
MITSUBISHI MICROCOMPUTERS
M37409PSS
PIGGYBACK for M37409M2-XXXSP
PIN DESCRIPTION
Pin Name
Vee,
Vss
CNVss
RESET
Supply voltage
CNV. .
Reset Input
X,N Clock Input
XOUT
Clock output
POO-P07 I/O port PO
P1 0 -P1 7 1/0 port P1
TxD,-
Tx D•
UART transfer output
RxD,- UART receive Input
RxD•
CTS,-
CTS3
UART transfer
control Input
ClK
UART clock Input
Ao-A7
0 0 - 07
Address IOput
Data Inpulloutput
CS Chip select
RD Read control Input
WR
Write control Input
@-~ Output port A
@-@ Input port 0
InpuV
OutP~t
Functions
Power supply Inputs 5V±5% to Vcc. and OV to V...
This is usually connected to Vss
Input
To enter the reset state. the reset input pin must be kept at a "L" for more than 2}ls (under normal Vee
conditions.) If more time is needed for the crystal oscillator to stabilize. this "L" condition should be main-
tained for the reqUIred time.
Input
Output
This chip has an internal clock generating CIrCUit. To control generatmg frequency, an external ceramic or a
quartz crystal oscillator IS connected between the X,N and XOUT pins If an external clock Is used. the clock
source should be connected the X,N pin and the XcUT pin should be left open.
I/O Port PO Is an 8-bit 1/0 port With dllectlonal register allowing each 1/0 bit to be mdlvldually programmed as
Input or output.
This port Is connected to the system bus only. and can not be accessesd from the local bus At reset thiS
port becomes Input mode. The output structure IS CMOS output
1/0 Port P1 IS an a-bit 1/0 port and has basically the same function as port PO This port IS connected to the
local bus and can be used as only Input port from the system bus. The output structure IS CMOS output.
Output These are UART transfer data output pins
Input These are UART receive data IOput pins
1/0 These are UART transfer control Signal Input pins and can be used as 1/0 port which have baSically same
function as port P1
Input This port is an external clock input pin for baud rate
Input This port is Input for system address
I/O ThiS port is input or output the system data
Input System data can be read or written by Inputting "L" to this port
Input Memory or register data speCified by Ao-A, is read from 00-0, by inputting "L" to thiS port
Input Data input from 0 0-0, is written to memory or register specified by Ao-A, by Inputtmg "L" to this port
Output These are for addresses to an EPROM mounted on the package.
Input These are for IOpUt data from an EPROM mounted on the package
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Mitsubishi M37409PSS
MITSUBISHI MICROCOMPUTERS
M37409PSS
PIGGYBACK for M37409M2-XXXSP
EXPLANATION OF FUNCTION BLOCK
OPERATION
The differences between the M37409PSS and the M37409M2
-XXXSP are noted below. The following explanations apply
to the M37409PSS. Specification variations for other chips
are noted accordingly.
MEMORY
The M37409PSS is mounted an EPROM instead of an ex-
ternal ROM.
The address of an EPROM is 080016 - 1FFFI6, and this
memofY size Is 6144 bytes. Other than these, the
M37409PSS has the same function as the M37409M2-
XXXSP.
PRECATION FOR - USE
(1) In case of the M5L2764K EPROM use the following
areas (refer to Figure 1).
• For use the M37409M2-XXXSP, usable ROM area
is 100016-1 FFFI6.
M5L2764K......................... · addresses 100016-1 FFF16
M5L27128K ....................... addresses 300016-3FFF16
RAM
(128 bytes)
0000,.
007F,.
IAccess
OOCO,.
flag
0007,
OOEO,
OOFF,
Dual-port RAM
(192 bytes)
0200,
02BF,
0800,
Not used
Not used
SFR area
Not used
Not used
Zero
page
ROM
(6144 bytes)
1Faa,
1FEC,
1FFF,
Interrupt vector area
Address area apply to local bus
SpeCIal
page lor
subroutine
call
Flg.1 MemofY map
00,.
Dual-port RAM
co,.
Access Ilag
08,.
Not used
F5,. Port P1
F6,.
F7,.
F8,.
F9,.
FA,.
FB,.
Port P2
Port PO directional
register
IPC mode register 01
1PC error register 0
IPC mode register 11
IPC error regIster 1
IPC mode register 2/
IPC error register 2
IPC mode register 31
IPC error register 3
FC,.
FD,.
FE,.
FF,.
Not used
.Collision detect register
IPC semaphore register
Address area apply to system bus
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