Renesas 7700 FAMILY User Manual page 447

FLASH MEMORY VERSION
19.2 Serial input/output mode
The error flags are undefined after power-on.
When executing the error check command, the error flags become "0."
Fig. 19.2.7 Error information
19–30
Command error flag (E0)
When inputting the code other than the five command codes
shown in Table 19.2.2, this flag becomes "1."
Address error flag (E1)
When inputting the addresses other than addresses 4000
to FFFF
, this flag becomes "1."
16
The contents are undefined at reading.
7751 Group User's Manual
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