MC68LC302 Datasheet, PDF (5/169 Pages) Motorola, Inc – Low Power Integrated Multiprotocol Processor Reference Manual

Table of Contents
Paragraph
Number
2.4.4.1.4
2.4.4.1.5
2.4.4.1.6
2.4.4.1.7
2.4.4.1.8
2.4.4.1.9
2.4.4.2
2.4.4.2.1
2.4.4.2.2
2.4.4.2.3
2.4.4.2.4
2.4.4.3
2.4.4.3.5
2.4.4.3.6
2.5
2.6
Title
Page
Number
SLOW_GO Mode...................................................................................2-14
NORMAL Mode......................................................................................2-14
IMP Operation Mode Control Register (IOMCR) ...................................2-14
Low Power Drive Control Register (LPDCR) .........................................2-15
IMP Power Down Register (IPWRD) .....................................................2-15
Default Operation Modes. ......................................................................2-15
Low Power Support................................................................................2-15
Enter the SLOW_GO mode ...................................................................2-15
Entering the STOP/ DOZE/ STAND_BY Mode......................................2-16
IMP Wake-Up from Low Power STOP Modes .......................................2-17
IMP Wake-Up Control Register (IWUCR) ..............................................2-17
Fast Wake-Up ........................................................................................2-18
Ring Oscillator Control Register (RINGOCR) ........................................2-19
Ring Oscillator Event Register (RINGOEVR). .......................................2-20
MC68LC302 Dual Port RAM..................................................................2-20
Internal Registers map...........................................................................2-23
3.1
3.1.1
3.1.2
3.1.3
3.1.4
3.1.5
3.2
3.2.1
3.2.2
3.3
3.4
3.4.1
3.4.2
3.4.2.1
3.4.2.2
3.4.2.3
3.4.2.4
3.4.2.5
3.4.2.6
3.5
3.5.1
3.5.2
3.5.2.1
3.5.2.2
3.5.2.3
3.5.2.4
Section 3
System Integration Block (SIB)
System Control ........................................................................................3-1
System Control Register (SCR) ...............................................................3-2
System Status Bits...................................................................................3-3
System Control Bits .................................................................................3-3
Freeze Control .........................................................................................3-5
Hardware Watchdog ................................................................................3-5
Programmable Data Bus Size Switch ......................................................3-6
Bus Switch Register (BSR) ......................................................................3-6
Basic Procedure:......................................................................................3-6
Load Boot Code from An SCC.................................................................3-7
DMA Control ..........................................................................................3-10
MC68LC302 Differences........................................................................3-10
IDMA Registers (Independent DMA Controller).....................................3-11
Channel Mode Register (CMR)..............................................................3-11
Source Address Pointer Register (SAPR) .............................................3-13
Destination Address Pointer Register (DAPR).......................................3-13
Function Code Register (FCR) ..............................................................3-13
Byte Count Register (BCR)....................................................................3-13
Channel Status Register (CSR) .............................................................3-13
Interrupt Controller .................................................................................3-14
Interrupt Controller Key Differences.......................................................3-14
Interrupt Controller Programming Model................................................3-14
Global Interrupt Mode Register (GIMR) .................................................3-14
Interrupt Pending Register (IPR)............................................................3-15
Interrupt Mask Register (IMR)................................................................3-16
Interrupt In-Service Register (ISR).........................................................3-16
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MC68LC302 REFERENCE MANUAL
MOTOROLA