Register Descriptions
56F8322 Technical Data, Rev. 10.0
Freescale Semiconductor 81
Preliminary

6.5.1.2 OnCE Enable (ONCE EBL)—Bit 5

0 = OnCE clock to 56800E core enabled when core TAP is enabled
1 = OnCE clock to 56800E core is always enabled

6.5.1.3 Software Reset (SW RST)—Bit 4

Writing 1 to this field will cause the part to reset.

6.5.1.4 Stop Disable (STOP_DISABLE)—Bits 3–2

00 = Stop mode will be entered when the 56800E core executes a STOP instruction
01 = The 56800E STOP instruction will not cause entry into Stop mode; STOP_DISABLE can be
reprogrammed in the future
10 = The 56800E STOP instruction will not cause entry into Stop mode; STOP_DISABLE can then only be
changed by resetting the device
11 = Same operation as 10

6.5.1.5 Wait Disable (WAIT_DISABLE)—Bits 1–0

00 = Wait mode will be entered when the 56800E core executes a WAIT instruction
01 = The 56800E WAIT instruction will not cause entry into Wait mode; WAIT_DISABLE can be
reprogrammed in the future
10 = The 56800E WAIT instruction will not cause entry into Wait mode; WAIT_DISABLE can then only
be changed by resetting the device
11 = Same operation as 10
6.5.2 SIM Reset Status Register (SIM_RSTSTS)
Bits in this register are set upon any system reset and are initialized only by a Power-On Reset (POR). A
reset (other than POR) will only set bits in the register; bits are not cleared. Only software should clear this
register.
Figure 6-4 SIM Reset Status Register (SIM_RSTSTS)

6.5.2.1 Reserved—Bits 15–6

This bit field is reserved or not implemented. It is read as zero and cannot be modified by writing.

6.5.2.2 Software Reset (SWR)—Bit 5

When 1, this bit indicates that the previous reset occurred as a result of a software reset (write to SW RST
bit in the SIM_CONTROL register). This bit will be cleared by any hardware reset or by software. Writing
a 0 to this bit position will set the bit, while writing a 1 to the bit will clear it.
Base + $1 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Read 0 0 0 0 0 0 0 0 0 0 SWR COPR EXTR POR 0 0
Write
RESET 0000000000 00