CONTROL (SWDT) Register

Zynq UltraScale+ Devices Register Reference (UG1087)

Document ID
UG1087
Release Date
2024-03-13
Revision
1.10

CONTROL (SWDT) Register Description

Register NameCONTROL
Offset Address0x0000000004
Absolute Address 0x00FFCB0004 (CSU_WDT)
0x00FF150004 (SWDT)
0x00FD4D0004 (WDT)
Width26
TypemixedMixed types. See bit-field details.
Reset Value0x00003FFC
DescriptionCounter Control Register

CONTROL (SWDT) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
CKEY25:14woWrite-only0x0Counter access key - writes to the control register are only valid if this field is set to 0x248; this field is write only.
CRV13:2rwNormal read/write0xFFFCounter restart value - the counter is restarted with the value 0xNFFF, where N is the value of this field.
CLKSEL 1:0rwNormal read/write0x0Counter clock prescale - selects the prescaler division ratio:
00 = LPD_LSBUS_CLK clock divided by 8
01 = LPD_LSBUS_CLK clock divided by 64
10 = LPD_LSBUS_CLK clock divided by 512
11 = LPD_LSBUS_CLK clock divided by 4096
Note: If a restart signal is received the prescaler should be reset.