TABLE OF CONTENTS (Continued)
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ColdFire2/2M User’s Manual
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MOTOROLA
1.4.3.1
1.4.3.2
1.4.3.3
1.4.3.4
1.4.3.5
1.4.3.6
1.5
1.6
1.6.1
1.6.2
1.7
1.8
Status Register (SR)........................................................................1-14
Cache Control Register (CACR)......................................................1-15
Access Control Registers (ACR0, ACR1)........................................1-15
Vector Base Register (VBR)............................................................1-15
ROM Base Address Register (ROMBAR0) .....................................1-15
SRAM Base Address Register (RAMBAR0)....................................1-15
Integer Data Formats.................................................................................1-16
Organization of Data in Registers..............................................................1-16
Organization of Integer Data Formats in Registers..............................1-16
Organization of Integer Data Formats in Memory................................1-17
Addressing Mode Summary......................................................................1-18
Instruction Set Summary...........................................................................1-19
Section 2
Signal Summary
2.1
2.2
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.2.8
2.2.9
2.2.10
2.2.11
2.2.12
2.2.13
2.2.14
2.2.15
2.2.16
2.2.17
2.3
2.3.1
2.3.2
2.4
2.4.1
Introduction..................................................................................................2-1
Master Bus Signals......................................................................................2-3
68K Interrupt Acknowledge Mode Enable (IACK_68K)..........................2-3
Master Address Bus (MADDR[31:0]) .....................................................2-3
Master Arbiter Control (MARBC[1:0]).....................................................2-3
Master Freeze (MFRZB) ........................................................................2-4
Master Kill (MKILLB) ..............................................................................2-4
Master Read Data Bus (MRDATA[31:0]) ...............................................2-4
Master Read Data Input Enable (MIE)...................................................2-4
Master Read/Write (MRWB)...................................................................2-4
Master Reset (MRSTB)..........................................................................2-4
Master Size (MSIZ[1:0]) .........................................................................2-4
Master Transfer Acknowledge (MTAB) ..................................................2-5
Master Transfer Error Acknowledge (MTEAB).......................................2-5
Master Transfer Modifier (MTM[2:0])......................................................2-5
Master Transfer Start (MTSB)................................................................2-6
Master Transfer Type (MTT[1:0]) ...........................................................2-6
Master Write Data Bus (MWDATA[31:0])...............................................2-6
Master Write Data Output Enable (MWDATAOE)..................................2-6
General Control Signals ..............................................................................2-6
Clock (CLK)............................................................................................2-6
Interrupt Priority Level (IPLB[2:0])..........................................................2-6
Integrated Memory Signals..........................................................................2-7
Instruction Cache Signals.......................................................................2-7
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