Renesas SH7781, Руководство по оборудованию

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32. Electrical Characteristics
Rev.1.00 Jan. 10, 2008 Page 1568 of 1658
REJ09B0261-0100
32.3.1 Clock and Control Signal Timing
Table 32.6 Clock and Control Signal Timing
Item Symbol Min. Max. Unit Figure
Divider 1:
×
1, PLL1:
×
72,
PLL2 in operation *
4
f
EX
12 17 MHz EXTAL clock
input frequency
Divider 1:
×
1, PLL1:
×
36,
PLL2 in operation *
6
23 34
Divider 1:
×
1, PLL1:
×
72,
PLL2 in operation
*
4
t
EXcyc
59 83 ns 32.1 EXTAL clock
input cycle time
Divider 1:
×
1, PLL1:
×
36,
PLL2 in operation *
6
29 43
EXTAL clock input low pulse width t
EXL
3.5
⎯
ns 32.1
EXTAL clock input high pulse width t
EXH
3.5
⎯
ns 32.1
EXTAL clock input rise time t
EXr
⎯
4 ns 32.1
EXTAL clock input fall time t
EXf
⎯
4 ns 32.1
CLKOUT clock output (with use of PLL1/PLL2) f
OP
25 101 MHz
CLKOUT clock output cycle time t
CKOcyc
10 1000 ns 32.2
CLKOUT clock output low pulse width t
CKOL1
1
⎯
ns 32.2
CLKOUT clock output high pulse width t
CKOH1
1
⎯
ns 32.2
CLKOUT clock output rise time t
CKOr
⎯
3 ns 32.2
CLKOUT clock output fall time t
CKOf
⎯
3 ns 32.2
CLKOUT clock output low pulse width t
CKOL2
3
⎯
ns 32.3
CLKOUT clock output high pulse width t
CKOH2
3
⎯
ns 32.3
Power-on oscillation settling time t
OSC1
10
⎯
ms 32.4
Power-on oscillation settling time/mode
(MODE14, MODE10, MODE9, MODE4 to
MODE0) settling time t
OSCMD
10
⎯
ms 32.4
MODE (MODE13 to MODE11, MODE8 to
MODE5) reset setup time t
MDRS
3
⎯
t
cyc
32.6