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7.
The CPU read-accesses the access register (TMDR) of Accepted buffer to read the message it contains.
Note : If TMDR register is accessed by 16-bit access, the lower word (16-bit) is not use. See Figure 3-33.
Each time the CPU has accessed the access register, the µ PD98413 automatically increments the pointer
8.
of the buffer. Upon the completion of reading from the highest address of the pointer, incremented each
time a read is performed, the pointer is automatically returned to 0.
CHAPTER 3 FUNCTIONAL OUTLINE
PRELIMINARY
NEC confidential and Proprietary
105
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