Initialization Procedure For Quicc Version $0003 - Motorola MC68360 User Manual

Asynchronous hdlc, async hdlc protocol microcode

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A.3 Initialization Procedure for QUICC Version $0003

Revision $0003 silicon can be identified by a value of $0003 in the Rev_Num register.

1. Download the supplied S-Record for Rev $0003 onto the QUICC that is going to be

running the ASYNC-HDLC microcode package. The S-Record was created assuming

that the base of Dual-Port RAM on the selected QUICC starts at $20000. If this is not

the case, you will have to either modify the S-Record or extract the data from the S-

Record and load it using some other method.

2. Write $806C to REGB + $5CC (CPCR1)

3. Write $804C to REGB + $5CE (CPCR2)

4. Write $0000 to REGB + $5D0 (CPCR3)

5. Write $0000 to REGB + $5D2 (CPCR4)

6. Write $0001 to the RCCR register

7. Write $8000 to the CR register

If the QUICC is ever reset (by RESETS or RESETH), the micro-

code must be reloaded and reinitialized.

MOTOROLA

Freescale Semiconductor, Inc.

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Asynchronous HDLC

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