MPC8536E-ANDROID Freescale Semiconductor, MPC8536E-ANDROID Datasheet - Page 721

• Manufacturer Part Number: MPC8536E-ANDROID
• Description: HARDWARE/SOFTWARE ANDROID OS
• Manufacturer: Freescale Semiconductor
• Series: PowerQUICC ™r
• Type: MPUr

Specifications of MPC8536E-ANDROID

• Contents: Board
• For Use With/related Products: MPC8536
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13.4.4.2.1
The following example further illustrates the steps required to perform two writes to the RAM array at
non-sequential addresses assuming that the relevant BRn and ORn registers have been previously set up:
Note that if step 1 (or 6) and 2 (or 7) are reversed, step 3 (or 8) is replaced by the following:
13.4.4.2.2
RAM array contents may also be read for debug purposes, for example, by alternating dummy read
transactions, each time followed by reads of MDR (MxMR[OP] = 0b10). The following example further
illustrates the steps required to perform two reads from the RAM array at non-sequential addresses
assuming that the relevant BRn and ORn registers have been previously set up:
Freescale Semiconductor
1. Program MxMR for the first write (with the desired RAM array address).
2. Write pattern/data to MDR to ensure that the MxMR has already been updated with the desired
3. Read MDR to ensure that the MDR has already been updated with the desired pattern. (Or, read
4. Perform a dummy write transaction.
5. Read/check MxMR[MAD]. If incremented, the previous dummy write transaction is completed;
6. Program MxMR for the second write with the desired RAM array address.
7. Write pattern/data to MDR to ensure that the MxMR has already been updated with the desired
8. Read MDR to ensure that the MDR has already been updated with the desired pattern.
9. Perform a dummy write transaction.
10. Read/check MxMR[MAD]. If incremented, the previous dummy write transaction is completed.
•
1. Program MxMR for the first read with the desired RAM array address.
2. Read MxMR to ensure that the MxMR has already been updated with the desired configuration,
3. Perform a dummy read transaction.
4. Read/check MxMR[MAD]. If incremented, the previous dummy read transaction is completed;
5. Read MDR.
6. Program MxMR for the second read with the desired RAM array address.
7. Read MxMR to ensure that the MxMR has already been updated with the desired configuration,
8. Perform a dummy read transaction.
9. Read/check MxMR[MAD]. If incremented, the previous dummy read transaction is completed;
10. Read MDR.
configuration.
MxMR register if step 2 is not performed.)
proceed to step 6. Repeat step 5 until incremented.
configuration.
Read MxMR to ensure that the MxMR has already been updated with the desired configuration.
such as RAM array address.
proceed to step 5. Repeat step 4 until incremented.
such as RAM array address.
proceed to step 10. Repeat step 9 until incremented.
UPM Programming Example (Two Sequential Writes to the RAM Array)
UPM Programming Example (Two Sequential Reads from the RAM Array)
MPC8536E PowerQUICC III Integrated Processor Reference Manual, Rev. 1
Enhanced Local Bus Controller
13-79