MC9S12G FREESCALE [Freescale Semiconductor, Inc], MC9S12G Datasheet - Page 259

• Manufacturer Part Number: MC9S12G
• Description: Ignores external trigger. Performs one conversion sequence and stops.
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

7.3.2.1
Register Global Address 0x3_FF01
1
2
Read: All modes through BDM operation when not secured
Write: All modes through BDM operation when not secured, but subject to the following:
Freescale Semiconductor
Special Single-Chip Mode
0x3_FF08
0x3_FF09
0x3_FF0A
0x3_FF0B
Address
ENBDM is read as 1 by a debugging environment in special single chip mode when the device is not secured or secured but
fully erased (Flash). This is because the ENBDM bit is set by the standard BDM firmware before a BDM command can be fully
transmitted and executed.
UNSEC is read as 1 by a debugging environment in special single chip mode when the device is secured and fully erased,
else it is 0 and can only be read if not secure (see also bit description).
Global
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.
— ENBDM should only be set via a BDM hardware command if the BDM firmware commands
— BDMACT can only be set by BDM hardware upon entry into BDM. It can only be cleared by
All Other Modes
are needed. (This does not apply in special single chip mode).
the standard BDM firmware lookup table upon exit from BDM active mode.
BDMPPR
Reserved
Reserved
Reserved
Register
BDM Status Register (BDMSTS)
Name
Reset
W
R
W
W
W
W
R
R
R
R
ENBDM
0
BPAE
7
0
0
Bit 7
1
Figure 7-2. BDM Register Summary (continued)
X
0
0
0
Figure 7-3. BDM Status Register (BDMSTS)
MC9S12G Family Reference Manual, Rev.1.01
= Unimplemented, Reserved
= Always read zero
BDMACT
= Unimplemented, Reserved
= Indeterminate
1
0
6
6
0
0
0
0
0
0
0
5
5
0
0
0
0
SDV
0
0
4
4
0
0
0
0
TRACE
BPP3
3
0
0
3
0
0
0
0
Background Debug Module (S12SBDMV1)
= Implemented (do not alter)
= Implemented (do not alter)
= Always read zero
BPP2
0
0
0
2
2
0
0
0
UNSEC
BPP1
0
0
1
1
0
0
0
2
BPP0
Bit 0
0
0
0
0
0
0
0
259