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8.3.3 Execute Transfer Count Registers (ETCR)

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An execute transfer count register (ETCR) is a 16-bit readable/writable register that specifies the
number of transfers to be executed. The functions of these registers differ between normal mode
and block transfer mode.
• Normal mode
ETCRA
Bit 15
Initial value
Read/Write R/W
ETCRB: Is not used in normal mode.
In normal mode ETCRA functions as a 16-bit transfer counter. The count is decremented by 1
each time one transfer is executed. The transfer ends when the count reaches H'0000. ETCRB is
not used.
14 13 12 11 10
R/W R/W R/W R/W R/W
9 8 7 6 5
Undetermined
R/W R/W R/W R/W R/W
Transfer counter
197
4 3 2 1 0
R/W R/W R/W R/W R/W