ST20-GP1 datasheet(93/116 Pages) STMICROELECTRONICS

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ST20-GP1

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16 Conﬁguration register addresses

This chapter lists all the ST20-GP1 conﬁguration registers and gives the addresses of the registers.

The complete bit format of each of the registers and its functionality is given in the relevant chapter.

The registers can be examined and set by the

devlw (device load word) and devsw (device store

word) instructions. Note, they cannot be accessed using memory instructions.

Address

Size

Set

Clear

Read/

Write

HandlerWptr0

#20000000

R/W

HandlerWptr1

#20000004

R/W

HandlerWptr2

#20000008

R/W

HandlerWptr3

#2000000C

R/W

HandlerWptr4

#20000010

R/W

TriggerMode0

#20000040

R/W

TriggerMode1

#20000044

R/W

TriggerMode2

#20000048

R/W

TriggerMode3

#2000004C

R/W

TriggerMode4

#20000050

R/W

Pending

#20000080

Interrupt trigger

Interrupt grant

R/W

Set_Pending

#20000084

Clear_Pending

#20000088

Mask

#200000C0

R/W

Set_Mask

#200000C4

Clear_Mask

#200000C8

Exec

#20000100

Interrupt valid

Interrupt done

R/W

Set_Exec

#20000104

Clear_Exec

#20000108

LPTimerLS

#20000400

R/W

LPTimerMS

#20000404

R/W

LPTimerStart

#20000408

By a write to LP-

TimerLS or LP-

TimerMS

R/W

LPAlarmLS

#20000410

R/W

LPAlarmMS

#20000414

R/W

LPAlarmStart

#20000418

R/W

LPSysPll

#20000420

R/W

SysRatio

#20000500

WdEnable

#20000510

R/W

Table 16.1 ST20-GP1 conﬁguration register addresses

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