R01UH0092EJ0110 Rev.1.10
Page 238 of 807
Jul 31, 2012
M16C/64C Group
16. DMAC
16.2.3
DMAi Transfer Counter (TCRi) (i = 0 to 3)
The value written in the TCRi register is stored in the DMAi transfer counter reload register.
The DMAi transfer counter reload register value is transferred to the DMAi transfer counter in either of
the following cases:
•
The DMAE bit in the DMiCON register is set to 1 (DMA enabled) (single transfer mode, repeat
transfer mode).
•
The DMAi transfer counter underflows (repeat transfer mode).
Reset Value
DMAi Transfer Counter (i = 0 to 3)
Symbol
Address
Setting Range
RW
TCR0
TCR1
TCR2
TCR3
0189h to 0188h
0199h to 0198h
01A9h to 01A8h
01B9h to 01B8h
Undefined
Undefined
Undefined
Undefined
b7
b0
(b15)
b7
(b8)
b0
Function
RW
0000h to FFFFh
Set the number of transfers minus 1.
Содержание M16C Series
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