Renesas RL78 Series User Manual

RL78/F13, F14 CHAPTER 19 DTC
R01UH0368EJ0210 Rev.2.10 1462
Dec 10, 2015
19.4.6 Number of DTC Execution Clock Cycles
Table 19-10 lists the operations following DTC activation and required number of clock cycles for each operation.
Table 19-10. Operations Following DTC Activation and Required Number of Cycles
Vector Read
Control Data
Data Read Data Write
Read Write-back
1 4 Note 1 Note 2 Note 2
Notes 1. For the number of clock cycles required for control data write-back, refer to Table 19-11 Number of Clock
Cycles Required for Control Data Write-Back Operation.
2. For the number of clock cycles required for data read/write, refer to Table 19-12 Number of Clock Cycles
Required for Data Read/Write Operation.
Table 19-11. Number of Clock Cycles Required for Control Data Write-Back Operation
DTCCR Register Setting Address Setting Control Register to be Written Back Number
of Clock
Cycles
DAMO
D
SAMO
D
RPTSEL
MOD
E
Source Destination
DTCCTj
Register
DTRLDj
Register
DTSARj
Register
DTDARj
Register
0 0 X 0 Fixed Fixed Written
back
Written
back
Not
written
back
Not
written
back
1
0 1 X 0 Incremente
d
Fixed Written
back
Written
back
Written
back
Not
written
back
2
1 0 X 0 Fixed Incremente
d
Written
back
Written
back
Not
written
back
Written
back
2
1 1 X 0 Incremente
d
Incremente
d
Written
back
Written
back
Written
back
Written
back
3
0 X 1 1 Repeat
area
Fixed Written
back
Written
back
Written
back
Not
written
back
2
1 X 1 1 Incremente
d
Written
back
Written
back
Written
back
Written
back
3
X 0 0 1 Fixed Repeat
area
Written
back
Written
back
Not
written
back
Written
back
2
X 1 0 1 Incremente
d
Written
back
Written
back
Written
back
Written
back
3
Remark j = 0 to 23; X: 0 or 1
Table 19-12. Number of Clock Cycles Required for Data Read/Write Operation
Operation RAM Code Flash
Memory
Data Flash
Memory
SFR 2nd SFR
No Wait State Wait States
Data read 1 2 4 1 1 1 + number of wait states
Note
Data write 1 - - 1 1 1 + number of wait states
Note
Note The number of wait states differs depending on the specifications of the register allocated to the second SFR to
be accessed.

Renesas RL78 Series Specifications

General

Brand	Renesas
Model	RL78 Series
Category	Computer Hardware
Language	English