M38867E8AHP MITSUBISHI [Mitsubishi Electric Semiconductor], M38867E8AHP Datasheet - Page 74

• Manufacturer Part Number: M38867E8AHP
• Description: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER??
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

(2) Flash memory mode 2 (serial I/O mode)
The M38869FFAHP/GP has a function to serially input/output the
software commands, addresses, and data required for operation
on the internal flash memory (e. g., read, program, and erase) us-
ing only a few pins. This is called the serial I/O (input/output)
mode. This mode can be selected by driving the SDA (serial data
input/output), SCLK (serial clock input ), and OE pins high after
Fig. 72 Pin connection of M38869FFAHP/GP when operating in serial I/O mode
74
V c c
P 3
P 3
1
0
P 8
P 8
P 8
P 8
P 8
P 8
P 8
P 6
P 6
P 6
P 6
P 6
P 8
P 6
P 6
/ P W M
/ P W M
6
5
4
3
2
1
0
7
6
5
4
3
7
2
1
V
/ D Q
/ D Q
/ D Q
/ D Q
/ D Q
/ D Q
/ D Q
/ A N
/ A N
/ A N
/ A N
/ A N
/ D Q
/ A N
/ A N
V
R E F
C C
1 0
0 0
7
6
5
4
3
7
6
5
4
3
2
1
0
2
1
6 1
6 2
6 3
6 4
6 5
6 6
6 7
6 8
6 9
7 0
7 1
7 2
7 3
7 4
7 5
7 6
7 7
7 8
7 9
8 0
6 0
1 2 3 4
__
5 9
5 8
5 7
5 6
M 3 8 8 6 9 F F A H P
M 3 8 8 6 9 F F A G P
5 6
5 5
5 4
7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0
5 3
5 2
5 1
5 0
4 9
4 8
4 7
connecting wires as shown in Figures 72 and powering on the V
pin and then applying V
In the serial I/O mode, the user can use six types of software com-
mands: read, program, program verify, erase, erase verify and
error check.
Serial input/output is accomplished synchronously with the clock,
beginning from the LSB (LSB first).
4 6
4 5
4 4
*
4 3
: C o n n e c t t o t h e c e r a m i c o s c i l l a t i o n c i r c u i t .
4 2
i n d i c a t e s t h e f l a s h m e m o r y p i n .
4 1
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
4 0
3 9
3 8
3 7
3 6
3 5
3 4
3 3
3 2
3 1
3 0
2 9
2 8
2 7
2 6
2 5
2 4
2 3
2 2
2 1
P 1
P 1
P 2
P 2
P 2
P 2
P 2
P 2
P 2
P 2
V
X
X
P 4
P 4
C N V
P 4
P 4
P 4
R E S E T
S S
O U T
I N
MITSUBISHI MICROCOMPUTERS
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
/ X
/ X
/ I N T
/ I N T
/ R
PP
S S
C O U T
C I N
X
D
H to the V
0
1
/ O B F
/ O B F
0 0
0 1
S D A
*
V p p
PP
pin.
3886 Group
V s s
CC