MC912DG128ACPVE Datasheet, PDF (411/478 Pages) Freescale Semiconductor, Inc – Upward compatible with M68HC11 instruction set

Freescale Semiconductor, Inc.
Development Support
Background Debug Mode
20.4.5.3 SHIFTER
This 16-bit shift register contains data being received or transmitted via
the serial interface. It is also used by the BDM firmware for temporary
storage.
Read: all modes (but not normally accessed by users)
Write: all modes (but not normally accessed by users)
SHIFTER — BDM Shift Register – High Byte
BIT 15
14
13
12
11
10
S15
S14
S13
S12
S11
S10
RESET:
X
X
X
X
X
X
$FF02
9
BIT 8
S9
S8
X
X
SHIFTER — BDM Shift Register – Low Byte
$FF03
BIT 7
6
5
4
3
2
1
BIT 0
S7
S6
S5
S4
S3
S2
S1
S0
RESET:
X
X
X
X
X
X
X
X
20.4.5.4 ADDRESS
This 16-bit address register is temporary storage for BDM hardware and
firmware commands.
Read: all modes (but not normally accessed by users)
Write: only by BDM hardware (state machine)
ADDRESS — BDM Address Register – High Byte
BIT 15
14
13
12
11
10
A15
A14
A13
A12
A11
A10
RESET:
X
X
X
X
X
X
$FF04
9
BIT 8
A9
A8
X
X
ADDRESS — BDM Address Register – High Byte
$FF05
BIT 7
6
5
4
3
2
1
BIT 0
A7
A6
A5
A4
A3
A2
A1
A0
RESET:
X
X
X
X
X
X
X
X
MC68HC912DT128A — Rev 4.0
MOTOROLA
Development Support
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Technical Data
411