Hitachi H8S/2633 Hardware Manual page 757

2
Table 18-8 I C Bus Timing (with Maximum Influence of t
t
cyc
Item Indication
t 0.5t Standard
SCLHO SCLO
(–t ) mode
Sr
High-speed
mode
t 0.5t Standard
SCLLO SCLO
(–t ) mode
Sf
High-speed
mode
t 0.5t – Standard
BUFO SCLO
1t mode
cyc
( –t )
Sr
High-speed
mode
t 0.5t – Standard
STAHO SCLO
1t mode
cyc
(–t )
Sf
High-speed
mode
t 1t Standard
STASO SCLO
(–t ) mode
Sr
High-speed
mode
t 0.5t + Standard
STOSO SCLO
2t mode
cyc
(–t )
Sr
High-speed
mode
2
t 1t – Standard
*
SDASO SCLLO
3t mode
(master)
cyc
(–t )
Sr
High-speed
mode
2
t 1t – Standard
*
SDASO SCLL
2
3t * mode
(slave)
cyc
(–t )
Sr
High-speed
mode
Time Indication (at Maximum Transfer Rate) [ns]
2
I C Bus
t /t Specifi-
Sr Sf
Influence cation
(Max.) (Min.)
–1000 4000
–300 600
–250 4700
–250 1300
–1000 4700
–300 1300
–250 4000
–250 600
–1000 4700
–300 600
–1000 4000
–300 600
–1000 250
–200 100
–1000 250
–300 100
/t )
Sr Sf
ø = ø = ø =
5 MHz 8 MHz 10 MHz
4000 4000 4000
950 950 950
4750 4750 4750
1 1
1000* 1000* 1000*
1 1
3800* 3875* 3900*
1 1
750* 825* 850*
4550 4625 4650
800 875 900
9000 9000 9000
2200 2200 2200
4400 4250 4200
1350 1200 1150
3100 3325 3400
400 625 700
3100 3325 3400
400 625 700
ø = ø =
16 MHz 20 MHz
4000 4000
950 950
4750 4750
1 1 1
1000* 1000*
1 1 1
3938* 3950*
1 1 1
888* 900*
4688 4700
938 950
9000 9000
2200 2200
4125 4100
1075 1050
3513 3550
813 850
3513 3550
813 850
ø =
25 MHz
4000
950
4750
1
1000*
1
3960*
1
910*
4710
960
9000
2200
4080
1030
3580
880
3580
880
739