|
RX111_16 Datasheet, PDF (79/127 Pages) Renesas Technology Corp – 32 MHz 32-bit RX MCUs, 50 DMIPS, up to 512 Kbytes of flash memory | |||
|
◁ |
RX111 Group
5.3.2
Reset Timing
5. Electrical Characteristics
Table 5.25 Reset Timing
Conditions: 1.8 V ⤠VCC = VCC_USB ⤠3.6 V, 1.8 V ⤠AVSS0 ⤠3.6 V, VSS = AVSS0 = VSS_USB = 0 V, Ta = â40 to +105°C
Item
Symbol Min.
Typ.
Max.
Unit
Test
Conditions
RES# pulse width
Wait time after RES#
cancellation
(at power-on)
At power-on
Other than above
At normal startup*1
During fast startup time*2
tRESWP
3
â
â
tRESW
30
â
â
tRESWT
â
8.5
â
tRESWT
â
560
â
ms Figure 5.31
μs Figure 5.32
ms Figure 5.31
μs
Wait time after RES# cancellation
(during powered-on state)
tRESWT
â
114
â
μs Figure 5.32
Independent watchdog timer reset period
tRESWIW
â
1
â
IWDT Figure 5.33
clock
cycle
Software reset period
tRESWSW
â
1
â
ICLK
cycle
Wait time after independent watchdog timer reset cancellation*3
tRESW2
â
300
â
μs
Wait time after software reset cancellation
tRESW2
â
168
â
μs
Note 1. When OFS1.(STUPLVD1REN, FASTSTUP) = 11b.
Note 2. When OFS1.(STUPLVD1REN, FASTSTUP) â 11b.
Note 3. When IWDTCR.CKS[3:0] = 0000b.
VCC
RES#
Internal reset
tRESWP
Figure 5.31 Reset Input Timing at Power-On
tRESWT
RES#
Internal reset
Figure 5.32 Reset Input Timing (1)
tRESW
tRESWT
R01DS0190EJ0130 Rev.1.30
May 31, 2016
Page 79 of 127
|
▷ |