R01UH0136EJ0210 Rev.2.10
Page 568 of 800
Jul 31, 2012
M16C/64A Group
25. Multi-master I
2
C-bus Interface
Table 25.14
Conditions to Detect Start/Stop Condition
Standard Clock Mode
Fast-Mode
SCLMM open time
SSC value + 1 cycle
4 cycles
Setup time
2 cycles
Hold time
2 cycles
BB bit
setting/resetting
time
3.5 cycles
Unit: Number of fVIIC cycles
SSC value: Value of bits SSC4 to SSC0 in the S2D0 register
Table 25.15
Recommended Values of Bits SSC4 to SSC0 in Standard Clock Mode
fVIIC
SSC Value
(recommended)
Start/Stop Condition Detect Parameter
BB Bit
Setting/Resetting
Time
SCLMM open time
Setup time
Hold time
5 MHz
11110b
6.2
μ
s (31)
3.2
μ
s (16)
3.0
μ
s (15)
3.3
μ
s (16.5)
4 MHz
11010b
6.75
μ
s (27)
3.5
μ
s (14)
3.25
μ
s (13)
3.625
μ
s (14.5)
11000b
6.25
μ
s (25)
3.25
μ
s (13)
3.0
μ
s (12)
3.375
μ
s (13.5)
2 MHz
01100b
6.5
μ
s (13)
3.5
μ
s (7)
3.0
μ
s (6)
3.75
μ
s (7.5)
01010b
5.5
μ
s (11)
3.0
μ
s (6)
2.5
μ
s (5)
3.25
μ
s (6.5)
1 MHz
00100b
5.0
μ
s (5)
3.0
μ
s (3)
2.0
μ
s (2)
3.5
μ
s (3.5)
SSC value: Value of bits SSC4 to SSC0 in the S2D0 register
( ): Number of fVIIC cycles
SSC value
2
----------------------------
1 cycle
+
SSC value
2
---------------------------- cycles
SSC value
1
–
2
-------------------------------------
2 cycles
+
Содержание M16C/60 Series
Страница 853: ...M16C 64A Group R01UH0136EJ0210...