[Master device]
BSY
DASP- [Slave device]
BSY
5.6.4Power-on and reset
Figure 5.20 shows power-on and reset (hardware and software reset) timing.
(1)Only master device is present
Clear Reset *1
Power-on
RESET-tM
Software reset
tN
BSY
DASP-
tP
*1: Reset means including
(2)Master and slave devices are present
Clear Reset
tN
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| tQ |
|
|
|
| |
|
|
| tP |
|
|
|
|
|
|
|
|
|
| |||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
| PDIAG- |
|
|
|
|
|
|
|
|
|
| |||||
|
|
|
|
| tS |
|
|
|
| |||||||
| DASP- |
|
|
|
|
|
|
|
| |||||||
|
|
|
|
|
|
|
|
|
|
| ||||||
|
|
|
|
|
|
|
|
|
|
| ||||||
|
|
|
|
|
|
| tR |
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
| |||||||
Symbol | Timing parameter |
|
|
|
| Min. | Max. | Unit | ||||||||
|
|
|
|
|
|
|
|
|
| |||||||
tM | Pulse width of RESET- |
|
|
|
| 25 | — | μs | ||||||||
|
|
|
|
|
|
|
|
|
| |||||||
tN | Time from RESET- negation to BSY set |
|
|
|
| — | 400 | ns | ||||||||
|
|
|
|
|
|
| ||||||||||
tP | Time from RESET- negation to DASP- or DIAG- negation |
| — | 1 | ms | |||||||||||
|
|
|
|
|
|
|
|
|
| |||||||
tQ |
|
|
|
| — | 30 | s | |||||||||
|
|
|
|
|
|
| ||||||||||
tR | Time from RESET- negation to DASP- assertion (slave device) |
| — | 400 | ms | |||||||||||
|
|
|
|
|
|
|
|
|
| |||||||
tS | Duration of DASP- assertion |
|
|
|
| — | 31 | s | ||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Figure 5.20 Power-on Reset Timing
5 - 100 |
|