RL78/G1H CHAPTER 7 TIMER ARRAY UNIT
R01UH0575EJ0120 Rev. 1.20 Page 155 of 920
Dec 22, 2016
Figure 7 - 12 Format of Timer mode register mn (TMRmn) (1/4)
Note Bit 11 is fixed at 0 of read only, write is ignored.
Caution 1. Be sure to clear bits 13, 5, and 4 to “0”.
Caution 2. The timer array unit must be stopped (TTm = 00FFH) if the clock selected for f
CLK is changed (by
changing the value of the system clock control register (CKC)), even if the operating clock specified
by using the CKSmn0 and CKSmn1 bits (f
MCK) or the valid edge of the signal input from the TImn pin
is selected as the count clock (f
TCLK).
Remark
m: Unit number (m = 0, 1), n: Channel number (n = 0 to 3)
Address: F0190H, F0191H (TMR00) to F0196H, F0197H (TMR03), After reset: 0000H R/W
F01D0H, F01D1H (TMR10) to F01D6H, F01D7H (TMR13)
Symbol1514131211109876543210
TMRmn
(n = 2)
CKS
mn1
CKS
mn0
0
CCS
mn
MAST
ERmn
STS
mn2
STS
mn1
STS
mn0
CIS
mn1
CIS
mn0
00
MD
mn3
MD
mn2
MD
mn1
MD
mn0
Symbol1514131211109876543210
TMRmn
(n = 1, 3)
CKS
mn1
CKS
mn0
0
CCS
mn
SPLIT
mn
STS
mn2
STS
mn1
STS
mn0
CIS
mn1
CIS
mn0
00
MD
mn3
MD
mn2
MD
mn1
MD
mn0
Symbol1514131211109876543210
TMRmn
(n = 0)
CKS
mn1
CKS
mn0
0
CCS
mn
0
Note
STS
mn2
STS
mn1
STS
mn0
CIS
mn1
CIS
mn0
00
MD
mn3
MD
mn2
MD
mn1
MD
mn0
CKS
mn1
CKS
mn0
Selection of operation clock (f
MCK) of channel n
0 0 Operation clock CKm0 set by timer clock select register m (TPSm)
0 1 Operation clock CKm2 set by timer clock select register m (TPSm)
1 0 Operation clock CKm1 set by timer clock select register m (TPSm)
1 1 Operation clock CKm3 set by timer clock select register m (TPSm)
Operation clock (f
MCK) is used by the edge detector. A count clock (fTCLK) and a sampling clock are generated
depending on the setting of the CCSmn bit.
The operation clocks CKm2 and CKm3 can only be selected for channels 1 and 3.
CCSmn Selection of count clock (f
TCLK) of channel n
0 Operation clock (f
MCK) specified by the CKSmn0 and CKSmn1 bits
1 Valid edge of input signal input from the TImn pin
• For unit 0
For channel 0, valid edge of input signal selected by TIS0
For channel 1, valid edge of input signal selected by TIS0
For channel 3, valid edge of input signal selected by TI03
Count clock (f
TCLK) is used for the counter, output controller, and interrupt controller.
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