Section 31 Electrical Characteristics
Rev. 1.00 Mar. 12, 2008 Page 1134 of 1178
REJ09B0403-0100
31.3.3 Bus
Timing
Table 31.8 shows the bus timing. In subclock (
φ
SUB = 32.768 kHz) operation, external expansion
mode operation cannot be guaranteed.
Table 31.8 Bus Timing
Conditions: VCC = 3.0 V to 3.6 V, VSS = 0 V,
φ
= 20 MHz to 34 MHz
Item Symbol
Min.
Max.
Unit
Test
Conditions
Address delay time
t
AD
14.7
ns
Address setup time
t
AS
0.5
×
t
cyc
–14.7
Figures 31.12 to
31.19
Address hold time
t
AH
0.5
×
t
cyc
– 9.7
CS
delay time (
IOS
,
CS256
)
t
CSD
14.7
AS
delay time
t
ASD
14.7
HBE
delay time
t
HBD
t
AD
+ 5.0
LBE
delay time
t
LBD
t
AD
+ 5.0
RD
delay time 1
t
RSD1
14.7
RD
delay time 2
t
RSD2
14.7
Read data setup time
t
RDS
14.7
Read data hold time
t
RDH
0
Read data access time 1 t
ACC1
1.0
×
t
cyc
– 29.4
Read data access time 2 t
ACC2
1.5
×
t
cyc
– 24.7
Read data access time 3 t
ACC3
2.0
×
t
cyc
– 29.4
Read data access time 4 t
ACC4
2.5
×
t
cyc
– 24.7
Read data access time 5 t
ACC5
3.0
×
t
cyc
– 29.4
WR
delay time 1
t
WRD1
14.7
WR
delay time 2
t
WRD2
14.7
WR
pulse width 1
t
WSW1
1.0
×
t
cyc
– 19.6
WR
pulse width 2
t
WSW2
1.5
×
t
cyc
– 19.6
Write data delay time
t
WDD
24.7
Write data setup time
t
WDS
0
Write data hold time
t
WDH
0.5
×
t
cyc
– 5
WAIT
setup time
t
WTS
24.7
WAIT
hold time
t
WTH
5
Summary of Contents for H8S Family
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Page 70: ...Section 1 Overview Rev 1 00 Mar 12 2008 Page 22 of 1178 REJ09B0403 0100...
Page 108: ...Section 2 CPU Rev 1 00 Mar 12 2008 Page 60 of 1178 REJ09B0403 0100...
Page 116: ...Section 3 MCU Operating Modes Rev 1 00 Mar 12 2008 Page 68 of 1178 REJ09B0403 0100...
Page 152: ...Section 5 Interrupt Controller Rev 1 00 Mar 12 2008 Page 104 of 1178 REJ09B0403 0100...
Page 206: ...Section 6 Bus Controller BSC Rev 1 00 Mar 12 2008 Page 158 of 1178 REJ09B0403 0100...
Page 420: ...Section 9 14 Bit PWM Timer PWMX Rev 1 00 Mar 12 2008 Page 372 of 1178 REJ09B0403 0100...
Page 476: ...Section 12 Watchdog Timer WDT Rev 1 00 Mar 12 2008 Page 428 of 1178 REJ09B0403 0100...
Page 552: ...Section 14 CRC Operation Circuit CRC Rev 1 00 Mar 12 2008 Page 504 of 1178 REJ09B0403 0100...
Page 712: ...Section 18 I2 C Bus Interface IIC Rev 1 00 Mar 12 2008 Page 664 of 1178 REJ09B0403 0100...
Page 804: ...Section 19 LPC Interface LPC Rev 1 00 Mar 12 2008 Page 756 of 1178 REJ09B0403 0100...
Page 838: ...Section 20 Ethernet Controller EtherC Rev 1 00 Mar 12 2008 Page 790 of 1178 REJ09B0403 0100...
Page 964: ...Section 24 RAM Rev 1 00 Mar 12 2008 Page 916 of 1178 REJ09B0403 0100...
Page 1066: ...Section 25 Flash Memory Rev 1 00 Mar 12 2008 Page 1018 of 1178 REJ09B0403 0100...
Page 1098: ...Section 26 Boundary Scan JTAG Rev 1 00 Mar 12 2008 Page 1050 of 1178 REJ09B0403 0100...
Page 1226: ...Rev 1 00 Mar 12 2008 Page 1178 of 1178 REJ09B0403 0100...
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