IDEC MICROSmart FC6A Series User Manual

FC6A S ERIES MICROS MART U SER ’ S M ANUAL FC9Y-B1722 11-3
11: SD M EMORY C ARD
Special Internal Relays for the SD Memory Card
The special internal relays (M8070, M8071) are turned on and off according to the SD memory card insertion status and access
status. When special internal relay M8072 is turned on, access to the SD memory card is stopped.
Note: R/W stands for read/write and allows reading and writing. R is read-only. W is write-only.
Timing Chart
The special internal relays are turned on and off in the following manner according to the SD memory card insertion status and
access status.
Special Data Registers for the SD Memory Card
The capacity and free space of the SD memory card inserted in the FC6A Series MICROSmart can be checked with special data
registers.
Note: R/W stands for read/write and allows reading and writing. R is read-only. W is write-only.
Device
Address
Function Description R/W
M8070
SD Memory Card Mount
Status
When an SD memory card is inserted in the FC6A Series MICROSmart and it
has been recognized and can be used, M8070 is turned on. M8070 is turned
off if no SD memory card has been inserted or if it is not recognized.
R
M8071 Accessing SD Memory Card
M8071 is turned on while the SD memory card is being accessed. It is
turned off when access has finished.
M8072 Unmount SD Memory Card
When M8072 is turned on, access to the SD memory card is stopped. To
make an SD memory card accessible that has had access to it stopped,
insert the card once again.
R/W
Device
Address
Function Description R/W
D8250
Read SD Memory Card
Capacity
This register indicates the capacity of the recognized SD or SDHC (maximum
size 32 GB) memory card in megabytes.
It is 0 when no SD memory card has been inserted or if it is not recognized.
R
D8251
Read SD Memory Card Free
Capacity
This register indicates the free capacity of the SD memory card in
megabytes.
It is 0 when no SD memory card has been inserted or if it is not recognized.
Not
Inserted
Inserted
ON
OFF
Card Being
Recognized
SD Memory Card Insertion
Status
SD Memory Card Access
Status
Unmount
SD Memory Card
SD Memory Card
Mount Status
Slow Flashing
M8072
Standby Status
Reading
Writing
Standby Status
Stopping
Access
Access Stopped
M8070
ON
OFF
SD Memory Card
Status LED [SD]
ON
OFF
ON Quick Flashing ON Slow Flashing
Accessing
SD Memory Card
M8071
ON
OFF

IDEC MICROSmart FC6A Series Specifications

General

Brand	IDEC
Model	MICROSmart FC6A Series
Category	Computer Hardware
Language	English