Conventions
Various typographical conventions have been used in this book, as follows:
• Normal assembly program codes:
• Assembly code in generalized syntax; items inside “< >” must be replaced by real register names:
• C program codes:
• Pseudo code:
• Values:
1. 4’hC, 0x123 are both hexadecimal values.
2.
#3 indicates item number 3 (e.g., IRQ #3 means IRQ number 3).
3.
#immed_12 refers to 12-bit immediate data.
4. Register bits are typically used to illustrate a part of a value based on bit position. For example, bit[15:12] means bit number 15 down to 12.
• Register access types:
1. R is Read only.
2. W is Write only.
3. R/W is Read or Write accessible.
4. R/Wc is Readable and cleared by a Write access.
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