Table 19-8. Countx Description; Table 19-9. Countx Fields; Current Watchdog Count Registers (Count[3:0]) - Sharp LH79524 User Manual

Watchdog Timer

19.2.2.4 Current Watchdog Count Registers (COUNT[3:0])

The COUNTx registers, described in Table 19-8 and Table 19-9, are a set of registers
operating as a cascaded counter, reporting the current WDT decrementing value:
• COUNT3 contains bits 31 through 24 of the current value
• COUNT2 contains bits 23 through 16 of the current value
• COUNT1 contains bits 15 through 8 of the current value
• COUNT0 contains bits 7 through 0 of the current value.
When all of COUNT[3:0] are 0x00, the WDT has timed out.
BIT
FIELD
RESET
TYPE
BIT
FIELD
RESET
TYPE
ADDR
BIT
31:8
7:0
19-8

Table 19-8. COUNTx Description

31 30 29 28 27
0 0 0 0 0
RO RO RO RO RO
15 14 13 12 11
///
0 0 0 0 0
RO RO RO RO RO

Table 19-9. COUNTx Fields

NAME
/// Reserved Reading this field returns 0. Write the reset value.
Current Count This byte corresponds to the bit position of the entire 32-bit
COUNT
WDT count, as described (e.g. for COUNT3, this is the most-significant byte).
26 25 24 23
///
0 0 0 0
RO RO RO RO
10 9 8 7
0 0 0 0
RO RO RO RO
COUNT0 = 0xFFFE3000 + 0x0C
COUNT1 = 0xFFFE3000 + 0x10
COUNT2 = 0xFFFE3000 + 0x14
COUNT3 = 0xFFFE3000 + 0x18
DESCRIPTION
Version 1.0
LH79524/LH79525 User's Guide
22 21 20 19 18
0 0 0 0 0
RO RO RO RO RO
6 5 4 3 2
COUNT
0 0 0 0 0
RO RO RO RO RO
17 16
0 0
RO RO
1 0
0 1
RO RO