38K0 Datasheet, PDF (101/133 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

38K0 Group
qVersion Information Output Command
This command outputs the version information of the control pro-
gram stored in the Boot ROM area. Execute the version
information output command as explained here following.
(1) Transfer the “FB16” command code with the 1st byte.
(2) The version information will be output from the 2nd byte on-
ward.
This data is composed of 8 ASCII code characters.
SCLK
RxD
FB16
TxD
‘V’
‘E’
‘R’
‘X’
SRDY (BUSY)
Fig. 131 Timing for version information output
qBoot ROM Area Output Command
This command reads the control program stored in the Boot ROM
area in page (256 bytes) unit. Execute the Boot ROM area output
command as explained here following.
(1) Transfer the “FC16” command code with the 1st byte.
(2) Transfer addresses A8 to A15 and A16 to A23 with the 2nd and
3rd bytes respectively.
(3) From the 4th byte onward, data (D0 to D7) for the page (256
bytes) specified with addresses A8 to A23 will be output se-
quentially from the smallest address first synchronized with the
fall of the clock.
SCLK
RxD
FC16 A8 to A15 A16 to A23
TxD
data0
SRDY (BUSY)
Fig. 132 Timing for Boot ROM area output
data255
Rev.3.00 Oct 05, 2006 page 101 of 129
REJ03B0192-0300