NPM Motionnet G9001A, User Manual

Page: 63 / 125

DA70131-1/3E
II-13
5-4. AC characteristics
5-4-1. Reference clock
1) When setting CKSL = L
Item Symbol Min. Max. Unit
Frequency f
CLK
- 40 MHz
Cycle T
CLK
25 - ns
HIGH duration T
CLKH
10 15 ns
LOW duration T
CLKL
10 15 ns
Note: In order to secure good communication quality, use a clock offering the nearest figures to the standards
above.
For details, see the "CLK" section of the "Terminal Function" in this manual.
2) When setting CKSL = H
Item Symbol Min. Max. Unit
Frequency f
CLK
- 80 MHz
Cycle T
CLK
12.5 - ns
HIGH duration T
CLKH
- - ns
LOW duration T
CLKL
- - ns
5-4-2. Reset timing
Item Symbol Min. Max. Unit
Reset length T
WRSTI
10 - Clock cycles
Delay time T
DRST
- 10 Clock cycles
Note 1: After the internal RST goes LOW, the I/O device (G9002A) will be ready.
Note 2: The reset signal must last at least 10 cycles of the reference clock.
While resetting, make sure the clock signal continuously available to the device.
If the clock is stopped while resetting, the device cannot be reset normally.
____
RST
T
DRST
T
WRSTI
Internal
RST
T
DRST