MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 537

• Manufacturer Part Number: MMC2114
• Description: M CORE Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

20.7.2 Write Cycles
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA
1. DRIVE ADDRESS ON A[22:0].
2. DRIVE TSIZ[1:0] PINS FOR OPERAND SIZE.
3. ASSERT CS IF USED.
4. CLEAR R/W TO WRITE.
5. ASSERT EB (ONE OR MORE DEPENDING ON DATA SIZE AND POSITION.
6. DRIVE DATA ON D[31:16] AND/OR D[15:0].
1. NEGATE EB.
1. NEGATE CS IF USED.
2. REMOVE DATA FROM D[31:16] AND/OR D[15:0].
MMC2114, MMC2113, AND MMC2112
TERMINATE OUTPUT TRANSFER
TERMINATE CYCLE
START NEXT CYCLE
ADDRESS DEVICE
On a write cycle, the EBI transfers data to an external memory or
peripheral device. See
Figure 20-4
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 20-2. Write Cycle Flowchart
External Bus Interface Module (EBI)
Go to: www.freescale.com
for write cycle timing diagrams with and without wait states.
Figure
1. RECEIVE CS.
2. DECODE ADDRESS.
3. RECEIVE DATA FROM D[31:16] AND/OR D[15:0].
4. ASSERT TA IF NECESSARY FROM SLAVE DEVICE.
1. NEGATE TA.
20-2. Also see
EXTERNAL PERIPHERAL
TERMINATE CYCLE
External Bus Interface Module (EBI)
ACCEPT DATA
Figure 20-3
Advance Information
Bus Master Cycles
and
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