Renesas M16C/29 Series Hardware Manual page 275

M16C/29 Group
2
I C0 start/stop condition control register
b7 b6 b5 b4 b3 b2
Note 1: Disable the setting of "00000
2
Figure 16.8 I C0 start/stop condition control register
Table 16.2 Recommended setting value (SSC4 - SSC0) start/stop condition at each oscillation frequency
2
Oscillation
I C bus system I
(MHz)
f1 clock select
10 1 / 2f1
8 1 / 2
8 1 / 8f1
4 1 / 2
2 1 / 2
Note: Do not set odd values or "00000
Rev.1.00 Nov 01,2004
REJ09B0101-0100Z
b1 b0
Symbol
S2D0
Bit Symbol
SSC0 START/STOP condition setting
bits(Note 1)
SSC1
SSC2
SSC3
SSC4
S /S
CL
SIP
select bit
S /S
CL
SIS
bit
STSP
START/STOP condition
SEL
generation select bit
" and odd values.
2
2 SSC4-SSC0
C bus system
clock(MHz)
5 XXX11110
4 XXX11010
f1
XXX11000
1 XXX00100
2 XXX01100
f1
XXX01010
1 XXX00100
f1
" to START/STOP condition setting bits(SSC4 to SSC0)
2
page 255 of 402
Address
02E5
16
Bit Name
Setting for detection condition
of START/STOP condition.
See Table 16.2
Recommended setting value
(SSC4 - SSC0) start/stop
condition at each oscillation
frequency.
0: Active in falling edge
interrupt pin polarity
DA
1: Active in rising edge
interrupt pin select 0: S
DA
1: S
0: Setup/hold time short mode
1: Setup/hold time long mode
S release
CL
time(cycle)
6.2 µs (31)
6.75 µs(27)
6.25 µs(25)
5.0 µs (5)
6.5 µs (13)
5.5 µs (11)
5.0 µs (5)
2
16. MULTI-MASTER I C bus INTERFACE
When reset
00011010
2
Function
enabled
DA
enabled
CL
Setup time
(cycle)
3.2 µs (16)
3.5 µs (14)
3.25 µs (13)
3.0 µs (3)
3.5 µs (7)
3.0 µs (6)
3.0 µs (3)
RW
RW
RW
RW
RW
RW
RW
RW
RW
Hold time
(cycle)
3.0 µs (15)
3.25 µs(13)
3.0 µs (12)
2.0 µs (2)
3.0 µs (6)
2.5 µs (5)
2.0 µs (2)