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ColdFire Core
MCF51QE128 MCU Series Reference Manual, Rev. 3
Freescale Semiconductor 165
Table 7-11. D0 Hardware Configuration Info Field Description
Field Description
31–24
PF
Processor family. This field is fixed to a hex value of 0xCF indicating a ColdFire core is present.
23–20
VER
ColdFire core version number. Defines the hardware microarchitecture version of ColdFire core.
0001 V1 ColdFire core (This is the value used for this device.)
0010 V2 ColdFire core
0011 V3 ColdFire core
0100 V4 ColdFire core
0101 V5 ColdFire core
Else Reserved for future use.
19–16
REV
Processor revision number. The default is 0b0000.
15
MAC
MAC present. This bit signals if the optional multiply-accumulate (MAC) execution engine is present in processor core.
0 MAC execute engine not present in core. (This is the value used for this device.)
1 MAC execute engine is present in core.
14
DIV
Divide present. This bit signals if the hardware divider (DIV) is present in the processor core.
0 Divide execute engine not present in core. (This is the value used for this device.)
1 Divide execute engine is present in core.
13
EMAC
EMAC present. This bit signals if the optional enhanced multiply-accumulate (EMAC) execution engine is present in
processor core.
0 EMAC execute engine not present in core. (This is the value used for this device.)
1 EMAC execute engine is present in core.
12
FPU
FPU present. This bit signals if the optional floating-point (FPU) execution engine is present in processor core.
0 FPU execute engine not present in core. (This is the value used for this device.)
1 FPU execute engine is present in core.
11
MMU
MMU present. This bit signals if the optional virtual memory management unit (MMU) is present in processor core.
0 MMU execute engine not present in core. (This is the value used for this device.)
1 MMU execute engine is present in core.
10–8 Reserved.
7–4
ISA
ISA revision. This 4-bit field defines the instruction-set architecture (ISA) revision level implemented in ColdFire
processor core.
0000 ISA_A
0001 ISA_B
0010 ISA_C (This is the value used for this device.)
1000 ISA_A+
Else Reserved
3–0
DEBUG
Debug module revision number. This 4-bit field defines revision level of the debug module used in the ColdFire
processor core.
0000 DEBUG_A
0001 DEBUG_B
0010 DEBUG_C
0011 DEBUG_D
0100 DEBUG_E
1001 DEBUG_B+ (This is the value used for this device.)
1011 DEBUG_D+
Else Reserved