mcf51ac256a Freescale Semiconductor, Inc, mcf51ac256a Datasheet - Page 133

• Manufacturer Part Number: mcf51ac256a
• Description: Mcf51ac Flexis
• Manufacturer: Freescale Semiconductor, Inc

1
2
BDM Command
7.2.1
D0–D7 data registers are for bit (1-bit), byte (8-bit), word (16-bit) and longword (32-bit) operations; they
can also be used as index registers.
Freescale Semiconductor
The values listed in this column represent the 8-bit BDM command code used when accessing the core registers via the 1-pin
BDM port. For more information see
similar to other ColdFire processors.)
If the given register is written using the MOVEC instruction, the 12-bit control register address (Rc) is also specified.
Store: 0x48–E
Load: 0x68–E
Store: 0x4–7
Load: 0x6–7
Store: 0xCE
Store: 0xCF
Store: 0xCE
Store: 0xC0
Store: 0xC1
Store: 0xC2
Store: 0x40
Store: 0x41
Store: 0x4F
Load: 0xEE
Load: 0xEF
Load: 0xE0
Load: 0xE1
Load: 0xE2
Load: 0xEE
Load: 0x60
Load: 0x61
Load: 0x6F
•
•
•
•
16-bit status register (SR)
32-bit supervisor stack pointer (SSP)
32-bit vector base register (VBR)
32-bit CPU configuration register (CPUCR)
Data Registers (D0–D7)
1
Data Register 0 (D0)
Data Register 1 (D1)
Data Register –7 (D–D7)
Address Register 0–6 (A0–A6)
User A7 Stack Pointer (A7)
Condition Code Register (CCR)
Program Counter (PC)
Supervisor A7 Stack Pointer
(OTHER_A7)
Vector Base Register (VBR)
CPU Configuration Register (CPUCR)
Status Register (SR)
MCF51AC256 ColdFire Integrated Microcontroller Reference Manual, Rev. 5
Register
Table 7-1. ColdFire Core Programming Model
Chapter 22, “Version 1 ColdFire Debug (CF1_DEBUG).”
Supervisor/User Access Registers
Supervisor Access Only Registers
Width
(bits)
32
32
32
32
32
32
32
32
32
16
8
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
W
POR: Undefined
Else: Unaffected
POR: Undefined
Else: Unaffected
POR: Undefined
Else: Unaffected
POR: Undefined
Else: Unaffected
0x(00)00_0004
0x(00)00_0000
7.3.3.14/7-20
7.3.3.14/7-20
Reset Value
See section
See section
Contents of
Contents of
location
location
0x27--
See
See
(These BDM commands are not
Written with
Rc = 0x801
Rc = 0x802
MOVEC
Yes;
Yes;
No
No
No
No
No
No
No
No
No
2
ColdFire Core
Section/Page
7.2.1/7-3
7.2.1/7-3
7.2.1/7-3
7.2.2/7-4
7.2.3/7-4
7.2.4/7-5
7.2.5/7-6
7.2.3/7-4
7.2.6/7-6
7.2.7/7-7
7.2.8/7-8
7-3