TC94A48FG Datasheet, PDF (16/36 Pages) Toshiba Semiconductor – Single-chip Audio Digital Signal Processor

TC94A48FG
(2) Writing 24-bit data
When the host microcontroller writes data to the TC94A48FG during the execution of a program, it
sets a 16-bit address in a 24-bit command as well as sets its R/W bit to "0" and sets the number of
words to be written. Then, it transfers the 24-bit command, followed by a required number of 24-bit
data words.
Figure 7 shows the 24 bit data write procedure.
／ＭＩＣＳ＝“Ｌ”
Check MＩＡＣＫ = “Ｌ”
(If MIACK = “H” , wait until MIACK = “L”)
Write 24-bit command
(data write = xxxx0xh)
Set 16-bit address and the number of
words to be transferred.
Write 24-bit data (1)
Write 24-bit data (2)
Can write up to eight 24-bit data words
Write 24-bit data (n)
／ＭＩＣＳ＝“Ｈ”
Data write finished
Figure 7 shows the 24-bit data write procedure.
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2005-09-28