Datasheet

TABLE OF CONTENTS (Continued)
Paragraph Page
Number Title Number
viii MCF5206e USER’S MANUAL MOTOROLA
2.3 Chip Selects .........................................................................................2-4
2.3.1 Chip Selects (A[27:24]/ CS[7:4]/ WE[0:3]) .................................2-5
2.3.2 Chip Selects (CS[3:0]) ................................................................2-5
2.3.3 Byte Write Enables (A[27:24]/ CS[7:4]/ WE[0:3]) .......................2-5
2.4 Interrupt control signals ........................................................................2-5
2.4.1 Interrupt Priority Level/ Interrupt Request ................................. 2-7
2.5 Bus Control Signals ..............................................................................2-8
2.5.1 Read/Write (R/W
) Signal ............................................................2-8
2.5.2 Size (SIZ[1:0]) ............................................................................2-9
2.5.3 Transfer Type (TT[1:0]) ..............................................................2-9
2.5.4 Access Type and Mode (ATM) ...................................................2-9
2.5.5 Transfer Start (TS) ...................................................................2-10
2.5.6 Transfer Acknowledge (TA) .....................................................2-10
2.5.7 Asynchronous Transfer Acknowledge (ATA) ...........................2-10
2.5.8 Transfer Error Acknowledge (TEA) ..........................................2-11
2.6 Bus Arbitration Signals .......................................................................2-11
2.6.1 Bus Request (BR) ....................................................................2-11
2.6.2 Bus Grant (BG) ........................................................................2-11
2.6.3 Bus Driven (BD) .......................................................................2-12
2.7 Clock and Reset Signals ....................................................................2-12
2.7.1 Clock Input (CLK) .....................................................................2-12
2.7.2 Reset (RSTI) ............................................................................2-12
2.7.3 Reset Out (RTS[2]/RSTO) .......................................................2-12
2.8 DRAM Controller Signals ...................................................................2-13
2.8.1 Row Address Strobes (RAS[1:0]) .............................................2-13
2.8.2 Column Address Strobes (CAS[3:0]) .......................................2-13
2.8.3 DRAM Write (DRAMW) ............................................................2-14
2.9 UART Module Signals ........................................................................2-14
2.9.1 Receive Data (RxD[1], RxD[2]) ................................................2-14
2.9.2 Transmit Data (TxD[1], TxD[2]) ................................................2-15
2.9.3 Request To Send (RTS[1], RTS[2]/RSTO) ..............................2-15
2.9.4 Clear To Send (CTS[1], CTS[2]) ..............................................2-15
2.10 Timer Module Signals ........................................................................2-15
2.10.1 Timer Input (TIN[2], TIN[1]) ......................................................2-15
2.10.2 Timer Output (TOUT[2], TOUT[1]) ...........................................2-15
2.11 DMA Module Signals ..........................................................................2-15
2.11.1 DMA Request (DREQ[0], DREQ[1]) .........................................2-15
2.12 M-Bus Module Signals .......................................................................2-16
2.12.1 M-Bus Serial Clock (SCL) ........................................................2-16
2.12.2 M-Bus Serial Data (SDA) .........................................................2-16
2.13 General Purpose I/O Signals .............................................................2-16
2.13.1 General Purpose I/O (PP[7:4]/PST[3:0]) ..................................2-16
Fr
eescale S
emiconduct
or
, I
Freescale Semiconductor, Inc.
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Go to: www.freescale.com
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