SEC2410 datasheet(74/283 Pages) MICROCHIP

74 / 283 page

SEC2410/SEC4410

DS00001587C-page 74

 2013 - 2014 Microchip Technology Inc.

Note 10-1

When the counter reaches 0000h it wraps to the preload value and starts counting down again. This

creates a pulse on the WDT Event output.

Note 10-2

Anytime the Counter is deactivated, the clock source to the counters should be gated in the WDT

block to conserve power. This is in addition to the Power and Clocking logic gating the source clocks.

10.7

Instance Description

There is one instance of the Watchdog Timer Interface block implemented in SEC2410/SEC4410located at address

0x40020400.

10.8

Detailed Register Descriptions

10.8.1

WDT LOAD REGISTER

TABLE 10-2:

WDT STALL EVENT BEHAVIOR

WDT STALL

Inputs

(Activity Indicator)

WDT Control Register

WDT Behavior

WDT Event

Output

STALL_EN

Bit

WDT Enable

Bit

Counter is reset and not active.

Clock source to counter is gated to save power.

Count is active

if counter > 0000h

Count is decremented to 0000h

Counter is not active.

Clock source to counter is gated to save power.

TABLE 10-3:

WATCHDOG TIMER INTERFACE REGISTER SUMMARY

Address

WDT Load Register

0x40020400

WDT Control Register

0x40020404

WDT Kick Register

0x40020408

WDT Count Register

0x4002040C

TABLE 10-4:

WDT LOAD REGISTER

WDT_LOAD

(ADDR 0XF00400, RESET=0XFFFF)

Watch Dog Load Register

Bit

Name

R/W

Description

15:0

WDT_LOAD

R/W

Writing this field reloads the Watch Dog Timer counter

SEC2410 Datasheet(PDF) 74 Page - Microchip Technology

SEC2410 Datasheet(HTML) 74 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL