mb95r203a Fujitsu Microelectronics, Inc., mb95r203a Datasheet - Page 36

• Manufacturer Part Number: mb95r203a
• Description: 8-bit Proprietary Microcontrollers
• Manufacturer: Fujitsu Microelectronics, Inc.

MB95R203A
36
(Continued)
*1 : R, C : Pull-up resistance and load capacitance of the SCL and SDA lines.
*2 : • Refer to “ (2) Source Clock/Machine Clock” for details on t
Stop condition
detection
Restart condition
detection condition
Bus free time
Data hold time
Data setup time
Data hold time
Data setup time
SDA ↓ → SCL ↑
(when using wakeup
function)
• m is the CS4 and CS3 bits (bit4 and bit3) of the I
• n is the CS2 to CS0 bits (bit2 to bit0) of the I
• The actual I
• Standard-mode :
• Fast-mode :
Parameter
CS4 to CS0 of the I
m and n can be set in the range : 0.9 MHz < t
The machine clock to be used is determined by the settings of m and n as follows.
m and n can be set in the range : 3.3 MHz < t
The machine clock to be used is determined by the settings of m and n as follows.
(m, n) = (1, 8)
(m, n) = (1, 22) , (5, 4) , (6, 4) , (7, 4) , (8, 4) ,
(m, n) = (1, 38) , (5, 8) , (6, 8) , (7, 8) , (8, 8) ,
(m, n) = (1, 98)
(m, n) = (1, 8)
(m, n) = (1, 22) , (5, 4)
(m, n) = (6, 4)
2
C timing is determined by the machine (t
Symbol
t
t
t
t
t
t
t
WAKEUP
SU;STO
HD;DAT
SU;DAT
HD;DAT
SU;DAT
2
SU;STA
t
C clock control register (ICCR0) .
BUF
name
SDA
SDA
SDA
SDA
SDA
SDA
SDA
SDA
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
Pin
R = 1.7 kΩ,
C = 50 pF
Condi-
tions
2
C clock control register (ICCR0) .
MCLK
MCLK
*1
2
(machine clock) < 10 MHz.
(machine clock) < 10 MHz.
C clock control register (ICCR0) .
Oscillation sta-
time + 2 t
t
bilization wait
LOW
4 t
2 t
2 t
2 t
t
: 0.9 MHz < t
: 0.9 MHz < t
: 0.9 MHz < t
: 0.9 MHz < t
: 3.3 MHz < t
: 3.3 MHz < t
: 3.3 MHz < t
MCLK
MCLK
MCLK
MCLK
MCLK
MCLK
− 3 t
Min
20
20
0
) and the values of m and n configured in bits
(Vcc = 3.3 V, Vss = 0.0 V, T
MCLK
− 20
− 20
− 20
− 20
− 20
Value
MCLK
MCLK
.
−
−
*2
MCLK
MCLK
MCLK
MCLK
MCLK
MCLK
MCLK
Max
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
≤ 1 MHz
≤ 2 MHz
≤ 4 MHz
≤ 1 MHz
≤ 4 MHz
≤ 8 MHz
≤ 10 MHz
Unit
ns
ns
ns
ns
ns
ns
ns
ns
Undetected when 1 t
CLK
Undetected when 1 t
CLK
During reception
In slave transmission
mode
In slave transmission
mode
During reception
During reception
A
is used at reception
is used at reception
= −40 °C to +85 °C)
Remarks
DS07-12630-1E
M-
M-