H8S-2350 RENESAS [Renesas Technology Corp], H8S-2350 Datasheet - Page 355

• Manufacturer Part Number: H8S-2350
• Description: 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 8 Data Transfer Controller (DTC)
8.5
Usage Notes
Module Stop
When the MSTP14 bit in MSTPCR is set to 1, the DTC clock stops, and the DTC enters the
module stop state. However, 1 cannot be written in the MSTP14 bit while the DTC is operating.
On-Chip RAM
The MRA, MRB, SAR, DAR, CRA, and CRB registers are all located in on-chip RAM. When the
DTC is used, the RAME bit in SYSCR must not be cleared to 0.
DMAC Transfer End Interrupt
When DTC transfer is activated by a DMAC transfer end interrupt, regardless of the transfer
counter and DISEL bit, the DMAC’s DTE bit is not subject to DTC control, and the write data has
priority. Consequently, an interrupt request may not be sent to the CPU when the DTC transfer
counter reaches 0.
DTCE Bit Setting
For DTCE bit setting, use bit manipulation instructions such as BSET and BCLR. If all interrupts
are masked, multiple activation sources can be set at one time by writing data after executing a
dummy read on the relevant register.
Rev. 3.00 Sep 15, 2006 page 321 of 988
REJ09B0330-0300