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PM73122 Datasheet(PDF) 26 Page - PMC-Sierra, Inc |
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PM73122 Datasheet(HTML) 26 Page - PMC-Sierra, Inc |
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26 / 489 page  RELEASED PM73122 AAL1GATOR-32 DATASHEET PMC-1981419 ISSUE 7 32 LINK CES/DBCES AAL1 SAR PROCESSOR PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 1 1 CHANGES FROM REV. A TO REV. B There are four main changes when transitioning from Rev. A to Rev. B: 1. The DEV_ID has changed from 0000 to 0001. 2. The JTAG version number has changed from 0 to 1. 3. The SHIFT_CAS feature which allows the signaling to be aligned with the first nibble of data has been added. This feature is enabled by setting SHIFT_CAS in the LIN_STR_MODE register. 4. The capability to have a separate C1FP for the ADD and DROP side of the SBI bus has been added. In Rev. A there is only one C1FP pin, but Rev. B has the option to support two separate C1FP pins. The original C1FP pin becomes the C1FP for the drop side of the SBI bus and the new pin, C1FP_ADD, is the C1FP for the add side of the SBI bus. Rev. B defaults to using one C1FP pin which makes it backwards compatible with Rev. A, but two C1FP capability can be enabled by setting TWO_C1FP_EN in the SBI_BUS_CFG_REG register. |
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