M16C Datasheet, PDF (248/262 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Preliminary Specifications REV.B
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M16C / 6N Group
Standard Serial I/O Mode
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Read Array Command
This command reads the specified page (256 bytes) in the flash memory sequentially one byte at a time.
Execute the read array command as explained below.
(1) Send the "FF16" command code in the first byte of the transmission.
(2) Send addresses A8 to A15 and A16 to A23 in the second and the third bytes of the transmission
respectively.
(3) From the fourth byte onward, data (D0 to D7) for the page (256 bytes) specified with addresses A8
to A23 will be output sequentially from the smaller address first in synchronization with the rise of
the clock.
CLK1
TxD1
RxD1
FF16
A8 to
A15
A16 to
A23
data0
RTS1(BUSY)
Figure 25-2. Timing for reading array
data255
Read Status Register Command
This command reads status information. When the "7016" command code is sent in the first byte of the
transmission, the contents of the status register (SRD) specified in the second byte of the transmission
and the contents of status register 1 (SRD1) specified in the third byte of the transmission are read.
CLK1
TxD1
7016
RxD1
SRD SRD1
output output
RTS1(BUSY)
Figure 25-3. Timing for reading the status register
248