XC912BC32CFU8 Motorola Semiconductor Products, XC912BC32CFU8 Datasheet - Page 326

• Manufacturer Part Number: XC912BC32CFU8
• Description: M68HC12B Family Data Sheet
• Manufacturer: Motorola Semiconductor Products

Development Support
18.3.7 BDM Shifter Register
18.3.8 BDM Address Register
Data Sheet
326
The 16-bit SHIFTER register contains data being received or transmitted via the
serial interface. It is also used by the BDM firmware for temporary storage. The
register can be read or written in all modes but is not normally accessed by users.
The 16-bit ADDRESS register is temporary storage for BDM hardware and
firmware commands. The register can be read in all modes but is not normally
accessed by users. It is written only by BDM hardware.
Reset:
Address: $FF02
Address: $FF03
Address: $FF04
Address: $FF05
Read:
Write:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
Bit 7
Bit 7
Bit 7
Bit 7
S15
A15
S7
A7
0
0
0
0
Figure 18-8. BDM Address Register (ADDRESS)
Figure 18-7. BDM Shifter Register (SHIFTER)
Development Support
S14
A14
S6
A6
6
0
6
0
6
0
6
0
S13
A13
S5
A5
5
0
5
0
5
0
5
0
S12
A12
S4
A4
4
0
4
0
4
0
4
0
S11
A11
S3
A3
3
0
3
0
3
0
3
0
M68HC12B Family — Rev. 8.0
S10
A10
S2
A2
2
0
2
0
2
0
2
0
S9
S1
A9
A1
1
0
1
0
1
0
1
0
MOTOROLA
Bit 0
Bit 0
Bit 0
Bit 0
S8
S0
A8
A0
0
0
0
0