m38039mf-xxxsp Mitsumi Electronics, Corp., m38039mf-xxxsp Datasheet - Page 106

• Manufacturer Part Number: m38039mf-xxxsp
• Description: Single-chip 8-bit Cmos Microcomputer
• Manufacturer: Mitsumi Electronics, Corp.

Input command code 40
the low-order 8 bits and the high-order 8 bits of the address and
then program data. Programming is initiated at the last rising edge
of the serial clock during program data transfer. The BUSY pin is
driven high during program operation. Programming is completed
within 10 s as measured by the internal timer, and the BUSY pin
is pulled low.
Fig. 96 Timings during programming
Input command code C0
the OE pin low. When this is done, the 3803/3804 group verify-
reads the programmed address’s contents, and then latchs it into
Fig. 97 Timings during program verify
106
Program command
Program verify command
__
SCLK
SDA
OE
BUSY
Note: When outputting the verify data, the SDA pin is switched for output at the first falling edge of SCLK. The SDA pin is placed
Command code input (40
in the floating state during the period of th
0 0 0 0 0 0 1 0
16
16
in the first transfer. Proceed and input
in the first transfer. Proceed and drive
SCLK
SDA
OE
BUSY
16
“L”
) Program address input (L) Program address input (H)
Command code input (C0
t
CH
A
0
0 0 0 0 0 0 1 1
(C-E)
after the last rising edge of SCLK (at the 8th bit).
A
7
16
)
t
CH
t
CRPV
A
Verify read
8
Note : A programming operation is not completed by executing the
the internal data latch. When the OE pin is released back high and
serial clock is input to the SCLK pin, the verify data that has been
latched into the data latch is serially output from the SDA pin.
t
WR
program command once. Always be sure to execute a pro-
gram verify command after executing the program command.
When the failure is found in the verification, the user must re-
peatedly execute the program command until the pass in the
verification. Refer to Figure 92 for the programming flowchart.
t
RC
A
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
15
D
t
Verify data output
CH
0
Program data input
D
0
MITSUBISHI MICROCOMPUTERS
D
7
3803/3804 Group
__
D
7
Program
t
WP
t
PC