RL78/G1P
CHAPTER 6 TIMER ARRAY UNIT
R01UH0895EJ0100 Rev.1.00
188
Nov 29, 2019
Figure 6-47. Example of Set Contents of Registers in External Event Counter Mode (1/2)
(a) Timer mode register mn (TMRmn)
15
14
13 12 11 10 9 8 7 6 5 4 3 2 1 0
TMRmn
CKSmn1
1/0
CKSmn0
1/0
0
CCSmn
1
M/S
Note
0/1
STSmn2
0
STSmn1
0
STSmn0
0
CISmn1
1/0
CISmn0
1/0
0
0
MDmn3
0
MDmn2
1
MDmn1
1
MDmn0
0
Operation
mode
of
channel
n
011B: Event count mode
Setting
of
operation
when
counting
is
started
0: Neither generates INTTMmn nor inverts
timer output when counting is started.
Selection
of
TImn
pin
input
edge
00B: Detects falling edge.
01B: Detects rising edge.
10B: Detects both edges.
11B: Setting prohibited
Start
trigger
selection
000B: Selects only software start.
Setting of MASTERmn bit (channel 2)
0: Independent channel operation function.
Setting of SPLITmn bit (channels 1, 3)
0: 16-bit timer mode
1: 8-bit timer mode
Count
clock
selection
1: Selects the TImn pin input valid edge.
Operation clock (f
MCK
) selection
00B: Selects CKm0 as operation clock of channel n.
10B: Selects CKm1 as operation clock of channel n.
01B: Selects CKm2 as operation clock of channels 1, 3 (This can only be selected channels 1 and 3).
11B: Selects CKm3 as operation clock of channels 1, 3 (This can only be selected channels 1 and 3).
(b) Timer output register m (TOm)
Bit n
TOm
TOmn
0
0: Outputs 0 from TOmn.
(c) Timer output enable register m (TOEm)
Bit n
TOEm
TOEmn
0
0: Stops the TOmn output operation by counting operation.
Note
TMRm2:
MASTERmn bit
TMRm1, TMRm3: SPLITmn bit
TMRm0:
Fixed to 0
Remark
m: Unit number (m = 0), n: Channel number (n = 0 to 3)