RL78/G1H CHAPTER 11 CLOCK OUTPUT/BUZZER OUTPUT CONTROLLER
R01UH0575EJ0120 Rev. 1.20 Page 268 of 920
Dec 22, 2016
Figure 11 - 1 Block Diagram of Clock Output/Buzzer Output Controller
Note For output frequencies available from PCLBUZ0 and PCLBUZ1, refer to 31.4 AC Characteristics.
Prescaler
Clock/buzzer
controller
fMAIN
fSUB
PCLOE0
000
PCLOE0
5
3
Internal bus
CSEL0
CCS02
CCS01 CCS00
Output latch
(P141)
PM141
PM140
PCLOE1
0 0 0 CSEL1 CCS12 CCS11 CCS10
Prescaler
8
Internal bus
Clock/buzzer
controller
PCLOE1
8
Clock output select register 1 (CKS1)
Selector
Selector
fMAIN/2
11
to fMAIN/2
13
fMAIN to fMAIN/2
4
fSUB to fSUB/2
7
fMAIN/2
11
to fMAIN/2
13
fMAIN to fMAIN/2
4
fSUB to fSUB/2
7
Output latch
(P140)
PCLBUZ1
Note
/INTP7/P141
PCLBUZ0
Note
/INTP6/P140
Clock output select register 0 (CKS0)