M38503MXH Datasheet, PDF (64/86 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS
3850 Group (Spec. H)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Full Status Check
Results from executed erase and program operations can be known
by running a full status check. Figure 66 shows a flowchart of the full
status check and explains how to remedy errors which occur.
Read status register
YES
SR4=1 and SR5
=1 ?
NO
SR5=0? ^NO
YES
SR4=0? ^NO
YES
Command
sequence error
Erase error
Program error
Execute the clear status register command (5016)
to clear the status register. Try performing the
operation one more time after confirming that the
command is entered correctly.
Should a block erase error occur, the block in error
cannot be used.
Should a program error occur, the block in error
cannot be used.
End (block erase, program)
Note: When one of SR5 to SR4 is set to “1”, none of the program, erase all blocks
commands is accepted. Execute the clear status register command (5016) before
executing these commands.
Fig. 66 Full status check flowchart and remedial procedure for errors
Example Circuit Application for The Standard
Serial I/O Mode
Figure 67 shows a circuit application for the standard serial I/O
mode. Control pins will vary according to programmer, therefore
see the peripheral unit manual for more information.
Clock input
BUSY output
Data input
Data output
VPP power
source input
P 41
SCLK
SRDY1 (BUSY)
RXD
TXD
M38507F8
CNVss
Notes 1: Control pins and external circuitry will vary according to peripheral unit. For more
information, see the peripheral unit manual.
2: In this example, the Vpp power supply is supplied from an external source (writer). To use
the user’s power source, connect to 4.5 V to 5.5 V.
Fig. 67 Example circuit application for the standard serial I/O mode
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