MB86R01 Datasheet, PDF (74/89 Pages) Fujitsu Component Limited. – MB86R01 DATA SHEET

MB86R01 DATA SHEET
8.5.9. I²C Bus Timing
Table 8-37 AC timing of I²C signal
Signal Symbol
Description
Value
Unit
Min.
Typ.
Max.
Normal mode
T_S2SDAI SDAI setup time
High-speed mode
250 (*1)
100 (*1)
–
–
ns
–
–
ns
I2C_SDA0
I2C_SDA1
T_H2SDAI
SDAI hold time
Normal mode
High-speed mode
0.0 (*1)
0.0 (*1)
–
–
ns
–
–
ns
Normal mode
T_WBFI BUS free time
High-speed mode
4.7 (*1)
1.3 (*1)
–
–
µs
–
–
µs
Normal mode
T_CSCLI SCLI cycle time
High-speed mode
1.0 (*1)
2.5 (*1)
–
–
µs
–
–
µs
Normal mode
T_WHSCLI SCLI H width
High-speed mode
4.0 (*1)
0.6 (*1)
–
–
µs
–
–
µs
T_WLSCLI SCLI L width
Normal mode
High-speed mode
4.7 (*1)
1.3 (*1)
–
–
µs
–
–
µs
Normal mode
2*m + 2 (*2)
–
T_CSCLO SCLO cycle time
I2C_SCL0
High-speed mode Int (1.5*m) + 2 (*2) –
I2C_SCL1
Normal mode
m + 2 (*2)
–
T_WHSCLO SCLO H width
High-speed mode Int (0.5*m) + 2 (*2) –
– PCLK (*3)
– PCLK (*3)
– PCLK (*3)
– PCLK (*3)
Normal mode
T_WLSCLO SCLO L width
High-speed mode
m (*2)
m (*2)
–
– PCLK (*3)
–
– PCLK (*3)
Normal mode
T_S2SCLI SCLI setup time
High-speed mode
4.0 (*2)
0.6 (*2)
–
–
µs
–
–
µs
Normal mode
T_H2SCLI SCLI hold time
High-speed mode
4.7 (*2)
1.3 (*2)
–
–
µs
–
–
µs
*1: I²C bus specification value
*2: See I²C bus interface's clock control register (I2CxCCR) of the MB86R01 LSI product specifications for the "m"
value
*3: PCLK = APB bus clock cycle
I2C_SDA0(in)
I2C_SDA1(in)
I2C_SCL0(in)
I2C_SCL1(in)
STOP START
D7
D6
D5
D4
D3
D2
TS2SCLI
TH2SCLI
TS2SDAI
TH2SDAI
TWBFI
TCSCLI
RESTART
D1
D0
ACK
TS2SCLI
TH2SCLI
TWHSCLI TWLSCLI
STOP START
I2C_SDA0(out)
I2C_SDA1(out)
TS2SCLO
D7
D6
TH2SCLO
I2C_SCL0(out)
I2C_SCL1(out)
RESTART
D5
D4
D3
D2
D1
D0
ACK
TH2SDAO
TS2SCLO
TH2SCLO
TCSCLO
TWHSCLO TWLSCLO
Figure 8-27 I²C Access Timing
FUJITSU MICROELECTRONICS
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PROPRIETARY AND CONFIDENTIAL