Motorola MCF5281 사용자 설명서
6-8
MCF5282 User’s Manual
MOTOROLA
Memory Map
6.3.3
CFM Registers
The CFM module also contains a set of control and status registers. The memory map for
these registers and their accessibility in supervisor and user modes is shown in Table 6-3.
these registers and their accessibility in supervisor and user modes is shown in Table 6-3.
6.3.4
Register Descriptions
The Flash registers are described in this subsection.
6.3.4.1
CFM Configuration Register (CFMCR)
The CFMCR is used to configure and control the operation of the CFM array.
Bits 10 -5 in the CFMCR register are readable and writable with restrictions.
Table 6-3. CFM Register Address Map
IPSBAR Offset
Bits 31–24
Bits 23–16
Bits 15–8
Bits 7–0
Access
1
1
S = Supervisor access only. User mode accesses to supervisor only addresses have no effect and result in a cycle
termination transfer error.
termination transfer error.
0x1D_0000
CFMMCR
CFMCLKD
Reserved
2
2
Addresses not assigned to a register and undefined register bits are reserved for expansion. Write accesses to these reserved
address spaces and reserved register bits have no effect.
address spaces and reserved register bits have no effect.
S
0x1D_0004
Reserved
2
S
0x1D_0008
CFMSEC
S
0x1D_000C
Reserved
2
S
0x1D_0010
CFMPROT
S
0x1D_0014
CFMSACC
S
0x1D_0018
CFMDACC
S
0x1D_001C
Reserved
2
S
0x1D_0020
CFMUSTAT
Reserved
2
S
0x1D_0024
CFMCMD
Reserved
2
S
15
11
10
9
8
7
6
5
4
0
Field
—
LOCK PVIE AEIE CBEIE CCIE KEYACC
—
Reset
0000_0000_0000_0000
R/W
R/W
Address
IPSBAR + 0x1D_0000
Figure 6-4. CFM Module Configuration Register (CFMCR)