BS_System controller
RM0082
294/844
Doc ID 018672 Rev 1
14.4.4 SCSYSSTAT
register
Writing any value to the SCSYSSTAT (system status) 32 bit RW register causes the
SOFTRESREQ output (soft reset request) to pulse high for a single clock cycle.
[15]
TimerEn0Sel
1’h0
Timer enable 0, timing reference select
[14:12]
HCLKDivSel
3’h0
Control the HCLKDIVSEL output
[11:10]
Reserved
-
Read: undefined. Write: should be zero
[09]
RemapStat
1’h0
Remap status
This bit is used to return the value of the
REMAPSTAT input.
[08]
RemapClear
1’h0
Remap clear request
This bit is used to control the REMAPCLEAR output.
Setting this bit indicates that the memory remap will
be cleared.
[07]
Reserved
-
Read: undefined. Write: should be zero
[06:03]
ModeStatus
4’h01
Mode status bitsThis 4 bit field returns the current
operation mode as defined by the system controller
state machine (
), according to the encoding:
4‘b0000 = SLEEP
4‘b0001 = DOZE (reser value)
4‘b0010 = SLOW
4‘b0011 = XTAL CTL
4‘b0100 = NORMAL
4‘b0101 = Not used
4‘b0110 = PLL CTL
4‘b0111 = Not used
4‘b1000 = Not used
4‘b1001 = SW from XTAL
4‘b1010 = SW from PLL
4‘b1011 = SW to XTAL
4‘b1100 = Not used
4‘b1101 = Not used
4‘b1110 = SW to PLL
4‘b1111 = Not used
[02:00]
ModeCtrl
3’h01
Mode control bits
This 3 bit field defines the required operation mode
(
Section 14.3.1: System mode control
), according to
the encoding (x is don’t care):
3‘b000 = SLEEP
3‘b001 = DOZE (reset value)
3‘b01x = SLOW
3‘b1xx = NORMAL
Table 233.
SCCTRL register bit assignments (continued)
Bit
Name
Reset
value
Description