m38039mf-xxxsp Mitsumi Electronics, Corp., m38039mf-xxxsp Datasheet - Page 76

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

START Condition Generating Method
When writing “1” to the MST, TRX, and BB bits of the I
register (S1: address 0013
slave address to the I
with the condition in which the ES0 bit of the I
(S1D: address 0014
occurs. After that, the bit counter becomes “000
1 byte is output. The START condition generating timing is differ-
ent in the standard clock mode and the high-speed clock mode.
Refer to Figure 70, the START condition generating timing dia-
gram, and Table 12, the START condition generating timing table.
Fig. 70 START condition generating timing diagram
Table 12 START condition generating timing table
Note: Absolute time at
76
Setup time
I
write signal
SCL
SDA
Hold time
2
C status register
Item
number of
Standard clock mode
cycles.
5.0 s (20 cycles)
5.0 s (20 cycles)
16
) and the BB flag are “0”, a START condition
2
= 4 MHz. The value in parentheses denotes the
C data shift register (S0: address 0011
Setup
16
time
) at the same time after writing the
Hold time
High-speed clock mode
2.5 s (10 cycles)
2.5 s (10 cycles)
2
C control register
2
” and an SCL for
2
C status
16
)
STOP Condition Generating Method
When the ES0 bit of the I
0014
the BB bit of the I
neously. Then a STOP condition occurs. The STOP condition
generating timing is different in the standard clock mode and the
high-speed clock mode. Refer to Figure 71, the STOP condition
generating timing diagram, and Table 13, the STOP condition gen-
erating timing table.
Fig. 71 STOP condition generating timing diagram
Table 13 STOP condition generating timing table
Note: Absolute time at
Setup time
I
write signal
SCL
SDA
Hold time
2
C status register
Item
16
number of
) is “1,” write “1” to the MST and TRX bits, and write “0” to
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Standard clock mode
cycles.
2
5.0 s (20 cycles)
4.5 s (18 cycles)
C status register (S1: address 0013
MITSUBISHI MICROCOMPUTERS
= 4 MHz. The value in parentheses denotes the
S e t u p
t i m e
2
C control register (S1D: address
3803/3804 Group
H o l d t i m e
High-speed clock mode
3.0 s (12 cycles)
2.5 s (10 cycles)
16
) simulta-