MC9S08RC8 Datasheet, PDF (67/234 Pages) Freescale Semiconductor, Inc – Microcontrollers

Resets, Interrupts, and System Configuration
5.8.3 System Background Debug Force Reset Register (SBDFR)
This register contains a single write-only control bit. A serial background command such as
WRITE_BYTE must be used to write to SBDFR. Attempts to write this register from a user program are
ignored. Reads always return $00.
7
6
5
4
3
2
1
R
0
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 5-4. System Background Debug Force Reset Register (SBDFR)
1. BDFR is writable only through serial background debug commands, not from user programs.
0
0
BDFR⁽¹⁾
0
Field
0
BDFR
Table 5-4. SBDFR Field Descriptions
Description
Background Debug Force Reset — A serial background command such as WRITE_BYTE may be used to
allow an external debug host to force a target system reset. Writing 1 to this bit forces an MCU reset. This bit
cannot be written from a user program.
MC9S08RC/RD/RE/RG Data Sheet, Rev. 1.11
Freescale Semiconductor
67