Renesas RL78 Series

RL78/F13, F14 CHAPTER 19 DTC
R01UH0368EJ0210 Rev.2.10 1446
Dec 10, 2015
19.2.15 High-speed DTC Control Register m (HDTCCR0/1) (m = 0, 1)
The HDTCCRm register is used to control the high-speed DTC transfer operating mode.
Figure 19-15. Format of High-speed DTC Control Register m (HDTCCRm)
Address: F02D0H (HDTCCR0), F02D8H (HDTCCR1) After reset: 00H
Symbol 7 <6> <5> <4> <3> <2> <1> <0>
HDTCCRm 0 HSZm HRPTINTm HCHNEm HDAMODm HSAMODm HRPTSELm HMODEm
Bit 7 Reserved R/W
0 Set to 0. R/W
HSZm Data size selection R/W
0 8 bits R/W
1 16 bits
HRPTINTm Enabling/disabling repeat mode interrupts R/W
0 Interrupt generation disabled R/W
1 Interrupt generation enabled
The setting of the HRPTINTm bit is invalid when the HMODEm bit is 0 (normal mode).
HCHNEm Enabling/disabling chain transfers
R/W
0 Chain transfers disabled
R/W
1 Chain transfers enabled
Set the CHNE bit in the DTCCR23 register to 0 (chain transfers disabled).
Set the HCHNEm bit to 0 (chain transfers disabled) when the activation source number is set to the
maximum value by the SELHSm register.
HDAMODm Transfer destination address control
R/W
0 Fixed
R/W
1 Incremented
The setting of the HDAMODm bit is invalid when the HMODEm bit is 1 (repeat mode) and the
HRPTSELm bit is 0 (transfer destination is the repeat area).
HSAMODm Transfer source address control
R/W
0 Fixed
R/W
1 Incremented
The setting of the HSAMODm bit is invalid when the HMODEm bit is 1 (repeat mode) and the
HRPTSELm bit is 1 (transfer source is the repeat area).
HRPTSELm Repeat area selection
R/W
0 Transfer destination is the repeat area
R/W
1 Transfer source is the repeat area
The setting of the HRPTSELm bit is invalid when the HMODEm bit is 0 (normal mode).
HMODEm Transfer mode selection R/W
0 Normal mode R/W
1 Repeat mode
Caution Do not access the HDTCCRm register using a high-speed DTC transfer.