M16C65 Datasheet, PDF (304/829 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/60

Under development
M16C/65 Group
Preliminary Specification
This is a preliminary specification and is subject to change.
16.2.3 DMAi Transfer Counter (TCRi) (i = 0 to 3)
16. DMAC
DMAi Transfer Counter (i = 0 to 3)
(b15)
b7
(b8)
b0 b7
b0
Symbol
TCR0
TCR1
TCR2
TCR3
Function
Set the transfer count minus 1.
Address
0189h to 0188h
0199h to 0198h
01A9h to 01A8h
01B9h to 01B8h
After Reset
Undefined
Undefined
Undefined
Undefined
Setting Range
RW
0000h to FFFFh
RW
The written value in the TCRi register is stored in the DMAi transfer counter reload register.
The value of the DMAi transfer counter reload register is transferred to the DMAi transfer counter in
either of the following cases:
• When the DMAE bit in the DMiCON register is set to 1 (DMA enabled)
(single transfer mode, repeat transfer mode)
• When the DMAi transfer counter underflows (repeat transfer mode)
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
Page 269 of 791