MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 527
MMC2114
Manufacturer Part Number
MMC2114
Description
M CORE Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MMC2114.pdf
(654 pages)
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20.1 Contents
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA
Advance Information — MMC2114, MMC2113, and MMC2112
Section 20. External Bus Interface Module (EBI)
20.2
20.3
20.3.1
20.3.2
20.3.3
20.3.4
20.3.5
20.3.6
20.3.7
20.3.8
20.3.9
20.3.10 Chip Selects (CS[3:0]) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 531
20.3.11 Output Enable (OE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 531
20.3.12 Transfer Size (TSIZ[1:0]) . . . . . . . . . . . . . . . . . . . . . . . . . . 532
20.3.13 Processor Status (PSTAT[3:0]) . . . . . . . . . . . . . . . . . . . . . 532
20.4
20.5
20.6
20.7
20.7.1
20.7.1.1
20.7.1.2
20.7.1.3
20.7.2
20.7.2.1
20.7.2.2
20.7.2.3
Freescale Semiconductor, Inc.
For More Information On This Product,
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 528
Signal Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .529
Memory Map and Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 532
Operand Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 532
Enable Byte Pins (EB[3:0]) . . . . . . . . . . . . . . . . . . . . . . . . . . . 534
Bus Master Cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 534
External Bus Interface Module (EBI)
Data Bus (D[31:0]) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530
Show Cycle Strobe (SHS) . . . . . . . . . . . . . . . . . . . . . . . . . 530
Transfer Acknowledge (TA) . . . . . . . . . . . . . . . . . . . . . . . . 530
Transfer Error Acknowledge (TEA) . . . . . . . . . . . . . . . . . .530
Emulation Mode Chip Selects (CSE[1:0]) . . . . . . . . . . . . . 530
Transfer Code (TC[2:0]) . . . . . . . . . . . . . . . . . . . . . . . . . . . 531
Read/Write (R/W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 531
Address Bus (A[22:0]) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 531
Enable Byte (EB[3:0]). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 531
Read Cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 535
Write Cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 537
State 1 (X1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 536
Optional Wait States (X2W) . . . . . . . . . . . . . . . . . . . . . . 536
State 2 (X2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 536
State 1 (X1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 538
Optional Wait States (X2W) . . . . . . . . . . . . . . . . . . . . . . 538
State 2 (X2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 538
Go to: www.freescale.com
Advance Information
527
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